Bitcoin Wiki - User contributions [en]

Bitcoin Dice

2015-01-12T19:17:22Z

Gweedo: /* Bitcoin Dice Websites */

Bitcoin dice games are by far the most popular Bitcoin powered casino game available online. Bitcoin dice allows people to jump in the game with provable odds on their rolls, determine their own risk. There are games where you can bet on Roll LO only while others on Roll HI only. However, there are also dice games where you can wager on either of the two options.

Most Bitcoin dice betting sites boast of their provable odds. With provable odds gaming, ideally you can statistically analyze both your own rolls and those of anyone else at any point.

=== Bitcoin Dice Websites ===

[https://www.crypto-games.net Crypto-Games] Simple and unique DICE game for playing with Bitcoin, Litecoin, Dogecoin and DarkGold. Fast, Secure, Fair and No Fees!

[http://rollin.io/ Rollin.io - Bitcoin dice] | Low 0.6% up to 1% house edge | Provably fair | Auto bot | Free bitcoins | Social chat | Instant payouts!

[http://suzukidice.com/ SuzukiDICE.com] Lowest house edge 0.9%! No account needed. Payouts are nearly instant.

[http://PRCDice.com/ PRCDice.com] Pocket Rocket Casino has been around since early 2013. Play the house or be the house. 1% house edge. Prove-able fair. Affiliate program.

[http://coinxerox.com/dice CoinXerox Dice] Free Bitcoins for Tic Tac Toe | Provably Fair | Automated Betting | Betting strategy scripting support in your web browser | House edge 1%

[http://juicydice.com JuicyDice] Fair and simple Bitcoin dice game.

[https://cryptbubbles.com/ Cryptbubbles] Player vs. player dice game. Place a bet or hit to take all coins. 1% house fee. 20% fee affiliate program.

[https://fairproof.com/ FairProof.com] Provably fair bitcoin lottery. Few games inside, provably fair 100%, welcome and deposit bonuses. Affiliate program.

[https://satoshicarnival.co SatoshiCarnaval] Faucets | Nice Community | 0.48% House edge | Fun Visual Dice game "To the moon" | Provably fair |

[https://coinroyale.com/dice CoinRoyale Dice] HTML5 provably fair Dice. Instant play after deposit, no registration required, low house edge and of course, Provably Fair.

[http://kinddice.com/ KindDice]
[https://88bitcoindice.com 88 Bitcoin Dice]

Proper Money Handling (JSON-RPC)

2014-10-23T05:02:36Z

Gweedo: Added java method

== Overview ==
The original bitcoin client stores all bitcoin values as 64-bit integers, with 1 BTC stored as 100,000,000 (one-hundred-million of the smallest possible bitcoin unit). Values are expressed as double-precision Numbers in the JSON API, with 1 BTC expressed as 1.00000000

If you are writing software that uses the JSON-RPC interface you need to be aware of possible floating-point conversion issues. You, or the JSON library you are using, should convert amounts to either a fixed-point Decimal representation (with 8 digits after the decimal point) or ideally a 64-bit integer representation. In either case, rounding values is required.

Improper value handling can lead to embarrassing errors; for example, if you truncate instead of doing proper rounding and your software will display the value "0.1 BTC" as "0.09999999 BTC" (or, worse, "0.09 BTC").

The original bitcoin client does proper, full-precision rounding for all values passed to it via the RPC interface. So, for example, if the value 0.1 is converted to the value "0.099999999999" by your JSON-RPC library, that value will be rounded to the nearest 0.00000001 bitcoin and will be treated as exactly 0.10 BTC.

The rest of this page gives sample code for various JSON libraries and programming languages.

== BASH ==
<source lang="bash">
function JSONtoAmount() {
printf '%.8f' "$1" | tr -d '.'
}
</source>

== C/C++ ==
C/C++ JSON libraries return the JavaScript Number type as type 'double'. To convert, without loss of precision, from a double to a 64-bit integer multiply by 100,000,000 and round to the nearest integer:
int64_t JSONtoAmount(double value) {
return (int64_t)(value * 1e8 + (value < 0.0 ? -.5 : .5));
}

To convert to a JSON value divide by 100,000,000.0, and make sure your JSON implementation outputs doubles with 8 or more digits after the decimal point:
double forJSON = (double)amount / 1e8;

== ECMAScript ==

function JSONtoAmount(value) {
return Math.round(1e8 * value);
}
== Java ==

public long JSONtoAmount(double value){
return (long)(value*100000000L);
}

== Perl ==
sub JSONtoAmount {
return sprintf '%.0f', 1e8 * shift;
}

== Go ==
The [https://github.com/conformal/btcjson btcjson package] provides a more complete version of this function (error checking and so on), but for illustrative purposes, this is useful.

func JSONToAmount(jsonAmount float64) (int64) {
var amount int64
tempVal := 1e8 * jsonAmount
if tempVal < 0 {
tempVal = tempVal - 0.5
}
if tempVal > 0 {
tempVal = tempVal + 0.5
}
// Then just rely on the integer truncating
amount = int64(tempVal)
return amount
}

== PHP ==
function JSONtoAmount($value) {
return round($value * 1e8);
}

== Python ==
def JSONtoAmount(value):
return long(round(value * 1e8))
def AmountToJSON(amount):
return float(amount / 1e8)

== Common Lisp ==
(defun json-to-amount (n)
(coerce (round (* n 1e8)) 'integer))

'''CAUTION''': The CL-JSON library parses numbers as ''single'' precision floating-point by
default. The default parsing behavior can be overridden as follows:

(set-custom-vars :real (lambda (n)
(json::parse-number (concatenate 'string n "d0"))))
[[Category:Technical]]
[[Category:Developer]]

[[de:Korrektes_Handling_von_Geldbeträgen_(JSON-RPC)]]

Software

2014-06-06T19:32:18Z

Gweedo: /* Enterprise server */

List of Bitcoin-related '''software'''. See also [[:Category:Software|Category:Software]].

Be sure to keep on top of the latest [[CVEs|security vulnerabilities]]!

==Bitcoin clients==
===Bitcoin clients===
::''Main article and feature comparison: [[Clients]]''
*[[Bitcoin-Qt]] - C++/Qt based tabbed UI. Linux/MacOSX/Windows. Full-featured [[Thin Client Security|thick client]] that downloads the entire [[block chain]], using code from the original Bitcoin client.
*[[bitcoind]] - GUI-less version of the original Bitcoin client, providing a [[API reference (JSON-RPC)|JSON-RPC]] interface
*[[MultiBit]] - lightweight [[Thin Client Security|thin client]] for Windows, MacOS and Linux with support for opening multiple wallets simultaneously
*[[Electrum]] - a "blazing fast, open-source, multi-OS Bitcoin client/wallet with a very active community" - also a [[Thin Client Security|thin client]].
*[[Bitcoin-js-remote]] - JavaScript RPC client, support for QR codes
*[https://github.com/TheSeven/Bitcoin-WebUI Bitcoin WebUI] - JavaScript RPC client
*[https://github.com/zamgo/bitcoin-webskin Bitcoin Webskin] - PHP web interface to bitcoind and namecoind
*[https://bitcointalk.org/index.php?topic=50721.0 subvertx] - command line bitcoin tools
*[[Bitcoiner]] - Java RPC client (Android)
*[[Armory]] - Python-based client currently in beta-level
*[[Spesmilo]] - Python/PySide RPC client (abandoned)
*[[Gocoin bitcoin software|Gocoin]] - WebUI client written in Go language, with a cold deterministic brain-wallet.
*[https://github.com/conformal/btcd btcd] An alternative full node bitcoin implementation written in Go (golang).
*[http://www.blockcypher.com BlockCypher] Full node bitcoin client built for scale and data centers, exposed through web APIs.

====Frontends to eWallet====
*[https://blockchain.info/wallet Blockchain] - Javascript bitcoin client with client side encryption.
*[https://en.bitcoin.it/wiki/Xcoinmoney xCoinMoney] Advanced API to create invoices for subscription.

====Experimental====
*[[Freecoin]] - C++ client, supports alternative currencies like [https://bitcointalk.org/index.php?topic=9493.0 Beertoken]
*[[BitDroid]] - Java client
*[[Bitdollar]] - C++/Qt client, unstable beta version

===Libraries===
*[https://bitcointalk.org/index.php?topic=30646.0 libbitcoin]
*[[BitCoinJ]] - Java client library, early development stage but used in live projects already
*[[BCCAPI]] (Bitcoin Client API) - a java library designed for making secure light-weight bitcoin clients.

==Bitcoin Trade Data==
*[[Bitcoin Charts]] – Prices, volume, and extensive charting on virtually all Bitcoin markets.
*[[MtGox Live]] - An innovative chart showing a live feed of [[MtGox]] trades and market depth. (Must Use Chrome)
*[http://btccharts.com BTCCharts] - An innovative chart showing a live feed of multiple markets, currencies and timeframes.
*[http://MY-BTC.info MY-BTC.INFO] - A free profit/loss portfolio manager for Bitcoins and other digital currencies including many charts.
*[http://BitcoinExchangeRate.org BitcoinExchangeRate.org] - Bitcoin and USD converter with convenient URL scheme and Auto-updating Portfolio Spreadsheet.
*[[Bitcoin Sentiment Index]] - A financial index that collects and disseminates sentiment data about bitcoin.
*[[Preev]] - Bitcoin converter with live exchange rates.
*[[Skami]] - Bitcoin Market Exchange comparison charts.
*[[BitcoinSentiment]] - Crowdvoting site offering means of voting and viewing voters sentiment towards bitcoin.
*[[TradingView]] – network where traders exchange ideas about Bitcoin using advanced free online charts

==Bitcoin software==

===Web interfaces for merchants===

*[[BitMerch]] - Embeddable HTML buttons, instant sign-up, instant payouts, automatic price adjustment for other currencies. No programming skills required to set up.
*[[Bitcoin Evolution]] - Non wallet-based Buy Now button to insert into websites (handles sales tracking; client must be used for actual transaction)
*[[BitPay]] - Buy Now buttons, Checkout posts/callbacks, Mobile Checkout, JSON API
*[[Btceconomy]] - a JavaScript widget listing items for sale
*[[BTCMerch]] - Payment processor for bitcoins and other cryptocurrencies. 0.5% transaction fee. Sandbox is available.
*[https://coinbase.com/merchants Coinbase] - Provides bitcoin payment processing for Overstock.com, Reddit, Khan Academy, OkCupid, and more.
*[[GoCoin]] - Payment gateway for bitcoin and litecoin. Supports JavaScript, PHP, Java, Ruby, and .NET
*[[Javascript Bitcoin Converter]] - currency conversion
*[[WalletBit]] - Easy JavaScript Buy Now buttons, Instant Payment Notification, Application Programming Interface (JSON API), Mobile Checkout, QR-Code
* [https://PikaPay.com PikaPay] ([[PikaPay|info]]) Buy Now buttons, Twitter Integration, JSON API

===Shopping Cart Integration in eCommerce-Systems===
*[[GoCoin]] - Plugin for WooCommerce support and coming soon Magento
*[[Zen Cart Bitcoin Payment Module]] - a payment module that interacts with bitcoind for the Zen Cart eCommerce shopping chart.
*[https://coinbase.com/docs/merchant_tools/shopping_cart_plugins Coinbase Shopping Cart Plugins] - Supports Wordpress, WooCommerce, Magento, Zencart, WP e-commerce, and more.
*[[Karsha Shopping Cart Interface]] - is a mobile payment-interface which enables its users to accept payments.
*[[Bitcoin-Cash]] - an easy to use payment module for xt:Commerce
*[[BitPay]] - bitcoin plugins for Magento, Opencart, Zencart, PHP, JSON API
*[[WalletBit]] - Plugins for PrestaShop, OpenCart, PHP, JSON API
* [https://www.xcoinmoney.com/info/api-general-info xCoinMoney] Advanced API for instant payment and subscriptions
*[[OpenCart Bitcoin]] - An OpenCart payment module that communicates with a bitcoin client using JSON RPC.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions; custom payment integrations
*[[OsCommerce_Bitcoin_Payment_Module|OsCommerce Bitcoin Payment Module]] - a payment module that uses a python monitoring script to interact with bitcoind for OsCommerce
* [http://drupal.org/project/uc_bitcoin Drupal Ubercart Bitcoin payment method] enables you to accept Bitcoin as payment for your Drupal/Ubercart enabled website product/services.

=== Enterprise server ===
*[https://apicoin.io Apicoin] First bitcoin PaaS (Platform as a Service)
*[http://bitsofproof.com Bits of Proof] - a modular enterprise-ready implementation of the Bitcoin protocol.
*[http://www.blockcypher.com BlockCypher] Full node bitcoin client built for scale and data center environments.

===Web apps===
*[[Bitcoin Central]] - currency exchange
*[https://en.bitcoin.it/wiki/Coinbase_(business) Coinbase] - an international digital wallet that allows you to securely buy, use, and accept bitcoin currency
*[[Coinnext]] - Cryptocurrency Exchange
*[[Bitcoin Poker Room]] - poker site
*[[Abe]] - block chain viewer
*[[Simplecoin]] - PHP web frontend for a pool
*[[bitcoin_simple_php_tools]] simple php tools for webmasters
* [http://www.coinsummary.com/ CoinSummary] - multi-coin wallet manager with built-in valuation in Bitcoin and major world currencies.

===Browser extensions===
*[[Bitcoin Extension]] - check balance and send bitcoins (Chrome)
*[[Bitcoin Prices (extension)]] - monitoring price (Firefox)
*[[Bitcoin Ticker]] - monitoring price (Chrome)
*[[Biticker]] - Bitcoin ticker, currency converter and history price graph (Chrome)
*[https://chrome.google.com/webstore/detail/bitcoin-microformats/bkanicejfbhlidgjkpenmddnacjengld?hl=en Bitcoin Microformats] Show bitcoin address metadata embedded in a page (Chrome)
*[https://chrome.google.com/webstore/detail/bitcoin-address-lookup/pmlblkdmadbidammhjiponepngbfcpge?hl=en Bitcoin Address Lookup] Right click an address to view its value. (Chrome)

===PC apps===
*[http://centrabit.com/ Qt Bitcoin Trader] - Open Source Multi exchange trading client for Windows, Mac OS X and Linux
*[[http://www.mybtc-trader.com MyBTC-Trader.com]] - a MtGox Bitcoin trading client for windows with GUI
*[[Mining Explorer]] - monitoring tool for bitcoin mining
*[[Bitcoin SMS Alert]] - sends SMS text alerts to a user's phone based on BTC price / percent thresholds.
*[[BTConvert]] - currency conversion
*[[Sierra Chart MtGox Bridge]] - real-time charting
*[[BitTicker]] - monitoring price (Mac OS X)
*[[ToyTrader]] - a command line trading tool for [[MtGox]]
*[[goxsh]] - a command-line frontend to the [[MtGox|Mt. Gox Bitcoin Exchange]] (Python)
*[[MyBitcoins gadget]] - monitoring pool earnings / price (Windows gadget)
*[[Bitcoin QR Popup]] - streamlined interface to bitcoin for POS systems (Windows)
*[http://gnome-help.org/content/show.php/Bitcoin+Rate?content=138572 Bitcoin Rate] - Desktop widget with BTC exchange rate (KDE)
*[http://kde-apps.org/content/show.php?content=142344 Bitcoin Monitor] - Desktop widget to monitor status of your Bitcoin miners on mining pools (KDE)

===Mobile apps===
==== iPhone / iPad ====
*[https://blockchain.info/wallet/iphone-app Blockchain] - Fully featured iphone bitcoin app.
*[[Bitcoin Ticker (iPhone)]] - monitoring price w/push notifications
*[[BitCoins Mobile]] - First iPad native app! Live market data, news feeds, mining pool statistics, full screen exchange price charts, bitcoin network statistical charts. (iPad only, iPhone/iPod Touch coming soon!)
*[https://github.com/teeman/BitcoinTrader BitcoinTrader] - Spend/receive BTC via QR codes, trade, deposit/withdraw, etc. Supports Mt. Gox, TradeHill, ExchB, CampBX, and InstaWallet.
*[[Bit-pay]] - Mobile Checkout, set prices in any currency and receive mobile-to-mobile payment
*[http://blog.coinbase.com/post/64824441934/the-coinbase-ios-app-has-launched Coinbase iPhone App]
*[[Easywallet.org]] - Web based wallet, works with QR Code scanner on iPhone/iPad/iPod touch
*[https://itunes.apple.com/us/app/btc-miner/id648411895?ls=1&mt=8 BTC Miner (iPhone)] - monitor mining results from various mining pools on iPhone/iPad/iPod touch
*[[BitTick]] - Real-time Bitcoin ticker. Real-time currency convert(support 50+ currency. USD, GBP, EUR, CNY, JPY, CAD, RUB, AUD, BRL, NZD, PLN, KRW…)

==== Android ====
* Direct link to Android Market bitcoin apps. https://play.google.com/store/search?q=bitcoin
*[[BitCare]] - Track bitcoin wallet balance, trade on Mt.Gox, monitor mining pool hashrate, balance, worker status.
*[[Bitcoin Alert]] - monitoring price (Android)
*[[Bitcoin-android]] - Does not appear to be being maitained anymore. https://market.android.com/details?id=com.bitcoinandroid
*[[Bitcoin Wallet Balance]] - view your balance in real time on your android phone
*[[Bitcoin Wallet]] - This is the most functional Android bitcoin wallet application. https://market.android.com/details?id=de.schildbach.wallet
*[[BitcoinSpinner]] - Single address, easy to use, lightweight and open source client. Keys stored on device.
*[[BitcoinX]] - monitoring price (Android)
*[[BitPay]] - https://market.android.com/details?id=com.bitcoin.bitpay (Is not related to the bit-pay.com online payment processor.)
*[[Bridgewalker]] - euro-denominated wallet for the Bitcoin economy
*[https://blockchain.info/wallet/android-app Blockchain] - Lightweight Android Bitcoin Client - Also works with blockchain.info web interface and iphone app.
*[https://play.google.com/store/apps/details?id=com.coinbase.android&hl=en Coinbase Wallet] - supports buying, selling, sending, requesting, and more.
*[https://play.google.com/store/apps/details?id=com.coinbase.android.merchant&hl=en Coinbase Merchant] - makes it easy to accept bitcoin at a retail location
*[[http://coincliff.com CoinCliff]] - Monitors price and fires alarms to wake you up, or notifications, as in text messages (Android)
*[[Easywallet.org]] - Web based wallet, works with QR Code scanner on Android devices
*[[Miner Status]] - monitoring miner status (Android)
*[[SMS Bitcoins]] - transactions by SMS

==== Windows Phone 7 ====
*Direct link to Windows Phone Marketplace Bitcoin apps: [http://www.windowsphone.com/en-us/store/search?q=bitcoin]

==== Windows Phone 8 ====
*[[Bitcoin Can]] - Monitoring prices, account balances and mobile trading on multiple exchanges including Coinbase, BTC-E, CampBX, and MtGox. http://www.windowsphone.com/en-us/store/app/bitcoin-can/57fcf4d6-497a-4663-8da3-93cb26c83b11

see also [[Bitcoin Payment Apps]]

===Operating systems===
*[[MinePeon]] - Bitcoin mining on the Raspberry PI
*BAMT - a minimal Linux based OS intended for headless mining. Initially announced [https://bitcointalk.org/index.php?topic=65915.0 here] (not maintained)
*[[LinuxCoin]] - a lightweight Debian-based OS, with the Bitcoin client and GPU mining software (not maintained)

===Mining apps===
Main page: [[Mining software]]
*[[50Miner]] - A GUI frontend for Windows(Poclbm, Phoenix, DiabloMiner, cgminer)
*[[BFGMiner]] - Modular ASIC/FPGA/GPU miner in C
*[http://www.groupfabric.com/bitcoin-miner/ Bitcoin Miner by GroupFabric] - Free easy-to-use DirectX GPU miner on the Windows Store
*[[BTCMiner]] - Bitcoin Miner for ZTEX FPGA Boards
*[[Bit Moose]] - Run Miners as a Windows Service.
*[[Poclbm]] - Python/OpenCL GPU miner ([[Poclbm-gui|GUI(Windows & MacOS X)]])
*[[CGMiner]] - ASIC/FPGA/GPU miner in C
*[[Poclbm-mod]] - more efficient version of [[Poclbm]] ([[Poclbm-mod-gui|GUI]])
*[[DiabloMiner]] - Java/OpenCL GPU miner ([[DiabloMiner.app|MAC OS X GUI]])
*[[RPC Miner]] - remote RPC miner ([[RPCminer.app|MAC OS X GUI]])
*[[Phoenix miner]] - miner
*[[Cpu Miner]] - miner
*[[Ufasoft miner]] - miner
*[[Pyminer]] - Python miner, reference implementation
*[[Remote miner]] - mining pool software
*[[Open Source FGPA Bitcoin Miner]] - a miner that makes use of an FPGA Board
*[https://github.com/mkburza/Flash-Player-Bitcoin-Miner Flash Player Bitcoin Miner] - A proof of concept Adobe Flash Player miner
*[http://fabulouspanda.co.uk/macminer/ MacMiner] - A native Mac OS X Bitcoin/Litecoin miner based on cgminer, bfgminer, cpuminer and poclbm
*[[Asteroid]] - Mac-specific GUI based on cgminer
*[[MultiMiner]] - GUI based on cgminer/bfgminer for Windows, OS X and Linux, allows switching between currencies based on profitability

===Mining Pool Servers (backend)===
Main page: [[Poolservers]]

*[[ecoinpool]] - Erlang poolserver (not maintained)
*[[Eloipool]] - Fast Python3 poolserver
*[[Pushpoold]] - Old mining poolserver in C (not maintained)
*[[Poold]] - Old Python mining poolserver (not maintained)
*[[PoolServerJ]] - Java mining poolserver (not maintained)
*[[CoiniumServ]] - High performance C# Mono/.Net poolserver.

===Utilities, libraries, and interfaces:===
*[[BitcoinCrypto]] - a lightweight Bitcoin crypto library for Java/Android
*[[Bitcoin Dissector]] - a wireshark dissector for the bitcoin protocol
*[[Bitcointools]] - a set of Python tools accessing the transaction database and the wallet
*[[Finance::MtGox]] - a Perl module which interfaces with the Mt. Gox API
*[[libblkmaker]] - C library implementation of [[getblocktemplate]] decentralized mining protocol
*[[python-blkmaker]] - Python module implementation of [[getblocktemplate]] decentralized mining protocol

===Lists of software===
*[[BitGit]] - list of Bitcoin-related opensource projects hosted at Git

===Developer resources===
*[[:Category:Developer|Category:Developer]]
*[[:Category:Technical|Category:Technical]]
*[[Original Bitcoin client/API calls list]]
*[[API reference (JSON-RPC)]]
*[[PHP_developer_intro|PHP Developer Introduction]]

===Other===
*[[Namecoin]] - a distributed naming system based on Bitcoin technology
*[[Bitcoin Consultancy]] - an organization providing open source software and Bitcoin-related consulting
*[[Open Transactions]] - a financial crypto and digital cash software library, complementary to Bitcoin
*[[Moneychanger]] - Java-based GUI for [[Open Transactions]]
*[http://btcnames.org/ BTCnames] - a webbased aliasing service which allows to handle unlimited names for your BTC deposit hashes
*[[Devcoin]] - the open source developer coin

[[Category:Software|*]]

Software

2014-06-06T19:32:02Z

Gweedo: /* Enterprise server */

List of Bitcoin-related '''software'''. See also [[:Category:Software|Category:Software]].

Be sure to keep on top of the latest [[CVEs|security vulnerabilities]]!

==Bitcoin clients==
===Bitcoin clients===
::''Main article and feature comparison: [[Clients]]''
*[[Bitcoin-Qt]] - C++/Qt based tabbed UI. Linux/MacOSX/Windows. Full-featured [[Thin Client Security|thick client]] that downloads the entire [[block chain]], using code from the original Bitcoin client.
*[[bitcoind]] - GUI-less version of the original Bitcoin client, providing a [[API reference (JSON-RPC)|JSON-RPC]] interface
*[[MultiBit]] - lightweight [[Thin Client Security|thin client]] for Windows, MacOS and Linux with support for opening multiple wallets simultaneously
*[[Electrum]] - a "blazing fast, open-source, multi-OS Bitcoin client/wallet with a very active community" - also a [[Thin Client Security|thin client]].
*[[Bitcoin-js-remote]] - JavaScript RPC client, support for QR codes
*[https://github.com/TheSeven/Bitcoin-WebUI Bitcoin WebUI] - JavaScript RPC client
*[https://github.com/zamgo/bitcoin-webskin Bitcoin Webskin] - PHP web interface to bitcoind and namecoind
*[https://bitcointalk.org/index.php?topic=50721.0 subvertx] - command line bitcoin tools
*[[Bitcoiner]] - Java RPC client (Android)
*[[Armory]] - Python-based client currently in beta-level
*[[Spesmilo]] - Python/PySide RPC client (abandoned)
*[[Gocoin bitcoin software|Gocoin]] - WebUI client written in Go language, with a cold deterministic brain-wallet.
*[https://github.com/conformal/btcd btcd] An alternative full node bitcoin implementation written in Go (golang).
*[http://www.blockcypher.com BlockCypher] Full node bitcoin client built for scale and data centers, exposed through web APIs.

====Frontends to eWallet====
*[https://blockchain.info/wallet Blockchain] - Javascript bitcoin client with client side encryption.
*[https://en.bitcoin.it/wiki/Xcoinmoney xCoinMoney] Advanced API to create invoices for subscription.

====Experimental====
*[[Freecoin]] - C++ client, supports alternative currencies like [https://bitcointalk.org/index.php?topic=9493.0 Beertoken]
*[[BitDroid]] - Java client
*[[Bitdollar]] - C++/Qt client, unstable beta version

===Libraries===
*[https://bitcointalk.org/index.php?topic=30646.0 libbitcoin]
*[[BitCoinJ]] - Java client library, early development stage but used in live projects already
*[[BCCAPI]] (Bitcoin Client API) - a java library designed for making secure light-weight bitcoin clients.

==Bitcoin Trade Data==
*[[Bitcoin Charts]] – Prices, volume, and extensive charting on virtually all Bitcoin markets.
*[[MtGox Live]] - An innovative chart showing a live feed of [[MtGox]] trades and market depth. (Must Use Chrome)
*[http://btccharts.com BTCCharts] - An innovative chart showing a live feed of multiple markets, currencies and timeframes.
*[http://MY-BTC.info MY-BTC.INFO] - A free profit/loss portfolio manager for Bitcoins and other digital currencies including many charts.
*[http://BitcoinExchangeRate.org BitcoinExchangeRate.org] - Bitcoin and USD converter with convenient URL scheme and Auto-updating Portfolio Spreadsheet.
*[[Bitcoin Sentiment Index]] - A financial index that collects and disseminates sentiment data about bitcoin.
*[[Preev]] - Bitcoin converter with live exchange rates.
*[[Skami]] - Bitcoin Market Exchange comparison charts.
*[[BitcoinSentiment]] - Crowdvoting site offering means of voting and viewing voters sentiment towards bitcoin.
*[[TradingView]] – network where traders exchange ideas about Bitcoin using advanced free online charts

==Bitcoin software==

===Web interfaces for merchants===

*[[BitMerch]] - Embeddable HTML buttons, instant sign-up, instant payouts, automatic price adjustment for other currencies. No programming skills required to set up.
*[[Bitcoin Evolution]] - Non wallet-based Buy Now button to insert into websites (handles sales tracking; client must be used for actual transaction)
*[[BitPay]] - Buy Now buttons, Checkout posts/callbacks, Mobile Checkout, JSON API
*[[Btceconomy]] - a JavaScript widget listing items for sale
*[[BTCMerch]] - Payment processor for bitcoins and other cryptocurrencies. 0.5% transaction fee. Sandbox is available.
*[https://coinbase.com/merchants Coinbase] - Provides bitcoin payment processing for Overstock.com, Reddit, Khan Academy, OkCupid, and more.
*[[GoCoin]] - Payment gateway for bitcoin and litecoin. Supports JavaScript, PHP, Java, Ruby, and .NET
*[[Javascript Bitcoin Converter]] - currency conversion
*[[WalletBit]] - Easy JavaScript Buy Now buttons, Instant Payment Notification, Application Programming Interface (JSON API), Mobile Checkout, QR-Code
* [https://PikaPay.com PikaPay] ([[PikaPay|info]]) Buy Now buttons, Twitter Integration, JSON API

===Shopping Cart Integration in eCommerce-Systems===
*[[GoCoin]] - Plugin for WooCommerce support and coming soon Magento
*[[Zen Cart Bitcoin Payment Module]] - a payment module that interacts with bitcoind for the Zen Cart eCommerce shopping chart.
*[https://coinbase.com/docs/merchant_tools/shopping_cart_plugins Coinbase Shopping Cart Plugins] - Supports Wordpress, WooCommerce, Magento, Zencart, WP e-commerce, and more.
*[[Karsha Shopping Cart Interface]] - is a mobile payment-interface which enables its users to accept payments.
*[[Bitcoin-Cash]] - an easy to use payment module for xt:Commerce
*[[BitPay]] - bitcoin plugins for Magento, Opencart, Zencart, PHP, JSON API
*[[WalletBit]] - Plugins for PrestaShop, OpenCart, PHP, JSON API
* [https://www.xcoinmoney.com/info/api-general-info xCoinMoney] Advanced API for instant payment and subscriptions
*[[OpenCart Bitcoin]] - An OpenCart payment module that communicates with a bitcoin client using JSON RPC.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions; custom payment integrations
*[[OsCommerce_Bitcoin_Payment_Module|OsCommerce Bitcoin Payment Module]] - a payment module that uses a python monitoring script to interact with bitcoind for OsCommerce
* [http://drupal.org/project/uc_bitcoin Drupal Ubercart Bitcoin payment method] enables you to accept Bitcoin as payment for your Drupal/Ubercart enabled website product/services.

=== Enterprise server ===
*[https://apicoin.io Apicoin] First bitcoin PaaS (Platform as a Server)
*[http://bitsofproof.com Bits of Proof] - a modular enterprise-ready implementation of the Bitcoin protocol.
*[http://www.blockcypher.com BlockCypher] Full node bitcoin client built for scale and data center environments.

===Web apps===
*[[Bitcoin Central]] - currency exchange
*[https://en.bitcoin.it/wiki/Coinbase_(business) Coinbase] - an international digital wallet that allows you to securely buy, use, and accept bitcoin currency
*[[Coinnext]] - Cryptocurrency Exchange
*[[Bitcoin Poker Room]] - poker site
*[[Abe]] - block chain viewer
*[[Simplecoin]] - PHP web frontend for a pool
*[[bitcoin_simple_php_tools]] simple php tools for webmasters
* [http://www.coinsummary.com/ CoinSummary] - multi-coin wallet manager with built-in valuation in Bitcoin and major world currencies.

===Browser extensions===
*[[Bitcoin Extension]] - check balance and send bitcoins (Chrome)
*[[Bitcoin Prices (extension)]] - monitoring price (Firefox)
*[[Bitcoin Ticker]] - monitoring price (Chrome)
*[[Biticker]] - Bitcoin ticker, currency converter and history price graph (Chrome)
*[https://chrome.google.com/webstore/detail/bitcoin-microformats/bkanicejfbhlidgjkpenmddnacjengld?hl=en Bitcoin Microformats] Show bitcoin address metadata embedded in a page (Chrome)
*[https://chrome.google.com/webstore/detail/bitcoin-address-lookup/pmlblkdmadbidammhjiponepngbfcpge?hl=en Bitcoin Address Lookup] Right click an address to view its value. (Chrome)

===PC apps===
*[http://centrabit.com/ Qt Bitcoin Trader] - Open Source Multi exchange trading client for Windows, Mac OS X and Linux
*[[http://www.mybtc-trader.com MyBTC-Trader.com]] - a MtGox Bitcoin trading client for windows with GUI
*[[Mining Explorer]] - monitoring tool for bitcoin mining
*[[Bitcoin SMS Alert]] - sends SMS text alerts to a user's phone based on BTC price / percent thresholds.
*[[BTConvert]] - currency conversion
*[[Sierra Chart MtGox Bridge]] - real-time charting
*[[BitTicker]] - monitoring price (Mac OS X)
*[[ToyTrader]] - a command line trading tool for [[MtGox]]
*[[goxsh]] - a command-line frontend to the [[MtGox|Mt. Gox Bitcoin Exchange]] (Python)
*[[MyBitcoins gadget]] - monitoring pool earnings / price (Windows gadget)
*[[Bitcoin QR Popup]] - streamlined interface to bitcoin for POS systems (Windows)
*[http://gnome-help.org/content/show.php/Bitcoin+Rate?content=138572 Bitcoin Rate] - Desktop widget with BTC exchange rate (KDE)
*[http://kde-apps.org/content/show.php?content=142344 Bitcoin Monitor] - Desktop widget to monitor status of your Bitcoin miners on mining pools (KDE)

===Mobile apps===
==== iPhone / iPad ====
*[https://blockchain.info/wallet/iphone-app Blockchain] - Fully featured iphone bitcoin app.
*[[Bitcoin Ticker (iPhone)]] - monitoring price w/push notifications
*[[BitCoins Mobile]] - First iPad native app! Live market data, news feeds, mining pool statistics, full screen exchange price charts, bitcoin network statistical charts. (iPad only, iPhone/iPod Touch coming soon!)
*[https://github.com/teeman/BitcoinTrader BitcoinTrader] - Spend/receive BTC via QR codes, trade, deposit/withdraw, etc. Supports Mt. Gox, TradeHill, ExchB, CampBX, and InstaWallet.
*[[Bit-pay]] - Mobile Checkout, set prices in any currency and receive mobile-to-mobile payment
*[http://blog.coinbase.com/post/64824441934/the-coinbase-ios-app-has-launched Coinbase iPhone App]
*[[Easywallet.org]] - Web based wallet, works with QR Code scanner on iPhone/iPad/iPod touch
*[https://itunes.apple.com/us/app/btc-miner/id648411895?ls=1&mt=8 BTC Miner (iPhone)] - monitor mining results from various mining pools on iPhone/iPad/iPod touch
*[[BitTick]] - Real-time Bitcoin ticker. Real-time currency convert(support 50+ currency. USD, GBP, EUR, CNY, JPY, CAD, RUB, AUD, BRL, NZD, PLN, KRW…)

==== Android ====
* Direct link to Android Market bitcoin apps. https://play.google.com/store/search?q=bitcoin
*[[BitCare]] - Track bitcoin wallet balance, trade on Mt.Gox, monitor mining pool hashrate, balance, worker status.
*[[Bitcoin Alert]] - monitoring price (Android)
*[[Bitcoin-android]] - Does not appear to be being maitained anymore. https://market.android.com/details?id=com.bitcoinandroid
*[[Bitcoin Wallet Balance]] - view your balance in real time on your android phone
*[[Bitcoin Wallet]] - This is the most functional Android bitcoin wallet application. https://market.android.com/details?id=de.schildbach.wallet
*[[BitcoinSpinner]] - Single address, easy to use, lightweight and open source client. Keys stored on device.
*[[BitcoinX]] - monitoring price (Android)
*[[BitPay]] - https://market.android.com/details?id=com.bitcoin.bitpay (Is not related to the bit-pay.com online payment processor.)
*[[Bridgewalker]] - euro-denominated wallet for the Bitcoin economy
*[https://blockchain.info/wallet/android-app Blockchain] - Lightweight Android Bitcoin Client - Also works with blockchain.info web interface and iphone app.
*[https://play.google.com/store/apps/details?id=com.coinbase.android&hl=en Coinbase Wallet] - supports buying, selling, sending, requesting, and more.
*[https://play.google.com/store/apps/details?id=com.coinbase.android.merchant&hl=en Coinbase Merchant] - makes it easy to accept bitcoin at a retail location
*[[http://coincliff.com CoinCliff]] - Monitors price and fires alarms to wake you up, or notifications, as in text messages (Android)
*[[Easywallet.org]] - Web based wallet, works with QR Code scanner on Android devices
*[[Miner Status]] - monitoring miner status (Android)
*[[SMS Bitcoins]] - transactions by SMS

==== Windows Phone 7 ====
*Direct link to Windows Phone Marketplace Bitcoin apps: [http://www.windowsphone.com/en-us/store/search?q=bitcoin]

==== Windows Phone 8 ====
*[[Bitcoin Can]] - Monitoring prices, account balances and mobile trading on multiple exchanges including Coinbase, BTC-E, CampBX, and MtGox. http://www.windowsphone.com/en-us/store/app/bitcoin-can/57fcf4d6-497a-4663-8da3-93cb26c83b11

see also [[Bitcoin Payment Apps]]

===Operating systems===
*[[MinePeon]] - Bitcoin mining on the Raspberry PI
*BAMT - a minimal Linux based OS intended for headless mining. Initially announced [https://bitcointalk.org/index.php?topic=65915.0 here] (not maintained)
*[[LinuxCoin]] - a lightweight Debian-based OS, with the Bitcoin client and GPU mining software (not maintained)

===Mining apps===
Main page: [[Mining software]]
*[[50Miner]] - A GUI frontend for Windows(Poclbm, Phoenix, DiabloMiner, cgminer)
*[[BFGMiner]] - Modular ASIC/FPGA/GPU miner in C
*[http://www.groupfabric.com/bitcoin-miner/ Bitcoin Miner by GroupFabric] - Free easy-to-use DirectX GPU miner on the Windows Store
*[[BTCMiner]] - Bitcoin Miner for ZTEX FPGA Boards
*[[Bit Moose]] - Run Miners as a Windows Service.
*[[Poclbm]] - Python/OpenCL GPU miner ([[Poclbm-gui|GUI(Windows & MacOS X)]])
*[[CGMiner]] - ASIC/FPGA/GPU miner in C
*[[Poclbm-mod]] - more efficient version of [[Poclbm]] ([[Poclbm-mod-gui|GUI]])
*[[DiabloMiner]] - Java/OpenCL GPU miner ([[DiabloMiner.app|MAC OS X GUI]])
*[[RPC Miner]] - remote RPC miner ([[RPCminer.app|MAC OS X GUI]])
*[[Phoenix miner]] - miner
*[[Cpu Miner]] - miner
*[[Ufasoft miner]] - miner
*[[Pyminer]] - Python miner, reference implementation
*[[Remote miner]] - mining pool software
*[[Open Source FGPA Bitcoin Miner]] - a miner that makes use of an FPGA Board
*[https://github.com/mkburza/Flash-Player-Bitcoin-Miner Flash Player Bitcoin Miner] - A proof of concept Adobe Flash Player miner
*[http://fabulouspanda.co.uk/macminer/ MacMiner] - A native Mac OS X Bitcoin/Litecoin miner based on cgminer, bfgminer, cpuminer and poclbm
*[[Asteroid]] - Mac-specific GUI based on cgminer
*[[MultiMiner]] - GUI based on cgminer/bfgminer for Windows, OS X and Linux, allows switching between currencies based on profitability

===Mining Pool Servers (backend)===
Main page: [[Poolservers]]

*[[ecoinpool]] - Erlang poolserver (not maintained)
*[[Eloipool]] - Fast Python3 poolserver
*[[Pushpoold]] - Old mining poolserver in C (not maintained)
*[[Poold]] - Old Python mining poolserver (not maintained)
*[[PoolServerJ]] - Java mining poolserver (not maintained)
*[[CoiniumServ]] - High performance C# Mono/.Net poolserver.

===Utilities, libraries, and interfaces:===
*[[BitcoinCrypto]] - a lightweight Bitcoin crypto library for Java/Android
*[[Bitcoin Dissector]] - a wireshark dissector for the bitcoin protocol
*[[Bitcointools]] - a set of Python tools accessing the transaction database and the wallet
*[[Finance::MtGox]] - a Perl module which interfaces with the Mt. Gox API
*[[libblkmaker]] - C library implementation of [[getblocktemplate]] decentralized mining protocol
*[[python-blkmaker]] - Python module implementation of [[getblocktemplate]] decentralized mining protocol

===Lists of software===
*[[BitGit]] - list of Bitcoin-related opensource projects hosted at Git

===Developer resources===
*[[:Category:Developer|Category:Developer]]
*[[:Category:Technical|Category:Technical]]
*[[Original Bitcoin client/API calls list]]
*[[API reference (JSON-RPC)]]
*[[PHP_developer_intro|PHP Developer Introduction]]

===Other===
*[[Namecoin]] - a distributed naming system based on Bitcoin technology
*[[Bitcoin Consultancy]] - an organization providing open source software and Bitcoin-related consulting
*[[Open Transactions]] - a financial crypto and digital cash software library, complementary to Bitcoin
*[[Moneychanger]] - Java-based GUI for [[Open Transactions]]
*[http://btcnames.org/ BTCnames] - a webbased aliasing service which allows to handle unlimited names for your BTC deposit hashes
*[[Devcoin]] - the open source developer coin

[[Category:Software|*]]

List of companies that pay employees in Bitcoin

2014-06-04T19:48:30Z

Gweedo:

{{stub}}

A partial list of companies that either give the option to employees to get paid in Bitcoin, or just don't give a fiat option.

* [https://blockchain.info/ blockchain.info] ([http://www.entrepreneur.com/article/234463 proof])
* [http://bitshares.org/ BitShares] ([http://www.reddit.com/r/CryptoCurrency/comments/277ddr/blockchaininfo_ceo_we_pay_employees_in_bitcoin/chy7e88 proof])
* [https://dana.io dana crowdfunding]
* [https://fairlay.com Fairlay - Prediction market]
* [http://mastercoin.org/ Mastercoin Foundation] ([https://docs.google.com/spreadsheet/ccc?key=0AtCyUJvk_IyNdGpVcnpBN2tOczFmbVRnck5TWjZuRFE&usp=sharing#gid=0 public ledger])
* [http://sc5.io/ SC5] ([http://sc5.io/blog/2013/03/sc5-pays-salaries-in-bitcoin/ blog post])
* [https://apicoin.io/ APIcoin]

[[Category:lists]]

How to accept Bitcoin, for small businesses

2014-04-29T03:16:32Z

Gweedo: /* Merchant Services */

{{merge|Merchant Howto}}

This guide is intended for small business owners who wish to help promote Bitcoin by accepting it as payment for goods and services. It's written with the assumption that you operate a regular business that sells goods or services for regular national currency such as dollars, and that you wish to accept Bitcoin as another legal way to pay, and that you intend to pay taxes on your Bitcoin income just like any other income.

With Bitcoin being touted as a way to conduct anonymous transactions and as way to compete with government currency, many small business owners wonder what's the right way to accept and account Bitcoin, or if it's legal or ethical, or whether and how they should pay taxes on income received through Bitcoin.

As far as we know, Bitcoin isn't yet formally recognized by governments and authorities as a "currency". But in practice, Bitcoin is likely no different than accepting payment in other forms, such as cash, or gold, or scrip, or gift cards or foreign currency. We think that it is pretty much the same as the local businesses of Great Barrington, Massachusetts choosing to accept their locally-printed [http://www.reuters.com/article/2007/06/19/us-usa-economy-berkshares-idUSN0530157720070619 "Berkshire Bucks"] to support their local economy.

====Starting to accept Bitcoin for transactions====
Accepting Bitcoin at a small business is best started in whichever manner keeps the accounting simple for you. This will vary by the type of business you are operating.

===Start with a sign===
[[{{ns:file}}:WeAcceptBitcoin.png‎]]

If you expect that the number of people interested in using Bitcoin is small, you might simply start by posting a sign or a note: "We Accept Bitcoin", and ask people to contact you directly in order to make a payment. Even if hardly anybody uses Bitcoin as a payment method, you're helping Bitcoin in two ways: one, by increasing awareness, and two, by making your customers more willing to accept Bitcoin as payment from others in the future, because now they know somewhere they can spend it.

===Utilize a merchant solution===
If you sell things on your website (goods or services), you'll want to use a [[#Merchant Services|Bitcoin merchant solution]] to accept the Bitcoins (you can usually opt to have them converted to USD or other currencies automatically with some services).

If you sell things in a brick and mortar shop, customers can pay using hardware terminals, touch screen apps or simple wallet addresses through QR Codes.

[[File:Bitcoin-pos-terminal.png|200 px|alt=Bitcoin POS Terminal|Coinkite terminal]] [[File:Mobile_Web_App_Bitcoin_Register.jpeg|100 px|alt=Bitcoin POS Terminal|CoinBox terminal]]

===Smart Phone or Tablet===
You can use a wallet address with any wallet. For that it's best if you can place a QR code near your register to which the customers can scan with their phone and pay (use http://ma.eatgold.com/accept to make a QR code sign).

==== Examples ====

* [[File:BitcoinRegister.gif|20px|link=http://coinbox.it/merchant]][http://coinbox.it/merchant CoinBox]
* [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS]
* [http://www.blockchain.info/wallet Blockchain.info]
* [https://www.xcoinmoney.com/ xCoinMoney] Online wallet for instant payment and subscriptions
* [https://coinbase.com/docs/merchant_tools/point_of_sale Coinbase]
* [[File:Coinkite.gif|20px|link=https://coinkite.com/promo/wikibiz]] [https://coinkite.com/promo/wikibiz Coinkite]
* [[File:gocoin-logo.png|20px|link=https://www.gocoin.com]] [https://www.gocoin.com GoCoin International Payment Processing for accepting Bitcoin and Litecoin payments]
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions
* [http://www.coinpip.com CoinPip] - Bitcoin Payment Solution for Asia
* [[File:Coin_Of_Sale_logo.png|20px|link=https://coinofsale.com]] [https://coinofsale.com Coin Of Sale] - device-independent Bitcoin POS payment system for retail merchants

===Point-of-Sale hardware terminal===
With custom hardware you can integrate with existing registers and point-of-sales solutions (example: [[File:Coinkite.gif|20px|link=https://coinkite.com/promo/wikibiz]] [https://coinkite.com/promo/wikibiz Coinkite]).

===Accounting===
When a customer makes a payment, you might simply issue a credit to their account. Ideally, you want to enter it in a way that suggests you received a payment. You could consider entering it as a "discount", but you may want to consider whether this inappropriately disguises the nature of the transaction. If on the other hand, you're giving "discounts" for Bitcoins, but then you are selling the Bitcoins for currency and then counting that as income, then chances are good that your calculation of income is making up for it. Ask your accountant.

===Businesses that offer gift cards===
If your business sells gift cards or gift certificates, you may find that the easiest way to accept Bitcoin is to accept it only for the purchase of gift cards, and then require the gift cards to be used for actual purchases of goods or services. This way, the accounting practices you already have in place for processing gift cards can be put to use. The accounting for Bitcoins would then be minimized to tracking sales of a single SKU.

This method is also ideal for retail food establishments and convenience stores, where the payment of Bitcoins through a mobile phone for a small daily food purchase might be cumbersome or disruptive, especially in front of a line of other customers. Bitcoins in this case would be best used to reload prepaid cards that can then be swiped at point-of-sale.

If you don't accept gift cards, but you already accept credit cards through a swipe terminal, consider the possibility that you could add a retail gift card system through the swipe terminal you already own. Many point-of-sale terminals, including ones from VeriFone®, are designed around the ability to support multiple applications on the same terminal. Gift cards are also highly profitable because of "breakage", or in other words, the fact that a significant percentage of them never get redeemed.

You could consider adding a private label gift card program from a provider who specializes in this, not just as a jumpstart to accepting Bitcoins, but as an extra boost to income. A private label gift card service provider necessarily have to handle your funds - they can simply provide a solution that keeps track of the balance on the cards on your behalf, including features that allow users to check their balances by phone or by web. Such a solution, of course, is also what makes the cards swipeable through the card reader.

===Businesses that mail invoices===
Does your business send out invoices to customers? Adding one line may make a huge impact for the Bitcoin economy. Perhaps you list it as a payment option just after Visa, MasterCard, and American Express, even if that means your customer must call or e-mail to make a payment.

If you have access to the programming expertise such that you can generate Bitcoin addresses programmatically, consider generating a brand new Bitcoin address for each invoice, and print it on the invoice. When a Bitcoin payment arrives, you'll automatically know where it should arrive.

Customers might wonder how much BTC they should pay in order to satisfy an invoice in full. Your invoice might suggest an amount. For example, if your invoice is for $100 and BTC's are currently worth $1.24 each, your invoice might suggest that it can be paid in full ''"with a payment of 80.65 BTC if paid by (date)"''.

You might be able to anticipate the possibility that even though a Bitcoin address can be printed on an invoice or payment stub, that they are very cumbersome for most people to type, especially being a mix of uppercase and lowercase letters. However, you should probably still do it anyway. The customer is probably going to want some paper trail for his payment. Giving him a pre-printed payment stub with a pre-printed address will satisfy that, because the customer can independently and publicly prove through [[Block Explorer]] that the payment took place.

Does your business have a website? On your invoice, consider allowing them to go to a special URL to get the address to make a Bitcoin payment just by typing in their invoice number. For example, ''ht<nowiki>tps://ww</nowiki>w.yoursite.com/paybtc'' with a form they can enter their invoice number, or just ''ht<nowiki>tps://ww</nowiki>w.yoursite.com/paybtc/60365'' for paying invoice #60365. This way, they can see the Bitcoin address, copy and paste it directly into their Bitcoin client.

Use a brand new address for each invoice whenever possible, and use it only once. This benefits the customer as it removes any ambiguity as to which customer is making which payment and for which invoice.

Known payment systems supporting invoicing, and recurring invoice setup, [[File:BIPS.gif|20px|link=https://bips.me/checkout/invoice/cb/bb]] [https://bips.me/checkout/invoice/cb/bb BIPS]

Online wallet supporting invoicing, subscriptions and recurrent payments, [https://www.xcoinmoney.com/info/sending-paying-invoices xCoinMoney]

===Avoiding fraud===

You should also consider the possible risk that fraudsters could send counterfeit invoices to your customers, and entice them to make a payment to a Bitcoin address they control, instead of you. While that isn't likely in general - it depends on how well a fraudster could find out who your customers are in the first place - it would certainly be an unpleasant situation if it ever happened. One way you could control that is, whenever possible, never let people try to type Bitcoin addresses off payment stubs - instead, force people to get the full Bitcoin address from your website via secure SSL. But, still print ''most'' of the address on the payment stub (perhaps with four or five characters starred out), so that the customer's need for a paper trail can be satisfied, so they can prove they paid if there is ever a dispute.

==Setting Prices==

When a business accepts bitcoins for payment, there generally is the need to convert them to the currencies used for paying suppliers, employees and shareholders. Some merchants set prices based on the current market rate at the time the price quote is presented to the customer (merchant services like [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS], [http://www.bit-pay.com Bit-pay], [https://coinbase.com Coinbase] or [http://paysius.com Paysius] do this automatically).

[[Bitcoin Prices]] lists the exchange rate for many currencies on multiple exchanges.

When prices are determined using an automated process, the current market rate can be based on either a current price or on a weighted average basis. [[Bitcoin Charts]] provides a [http://bitcoincharts.com/about/markets-api data feed that provides weighted prices].

When bitcoin funds for purchases are received, some merchants instantly exchange those proceeds into the preferred currency used (again done automatically by [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS], [http://www.bit-pay.com Bit-pay] or [https://coinbase.com Coinbase]. Hedging for each transaction can nearly entirely eliminate exchange rate risk that the business is exposed to when accepting bitcoins for payment.

==Contract==

A sales contract might be used to ensure that specific terms are met to lessen the chances of a misunderstanding. For instance, the party sending payment is responsible for paying any [[transaction fee]] that might be necessary. A contract might specify that a transaction fee must be paid and what amount, so as to prevent the situation where the transaction is considered a low priority transaction and thus isn't confirmed quickly.

Other items that might be addressed in a contract:

* Requirement and handling of escrow through an [[:Category:Escrow_services|escrow service]].
* Jurisdiction for disputes.
* Refund policy (particularly with the exchange rate being volatile)

==Paying taxes on Bitcoin income==
[[Tax compliance]] is a topic of concern for small businesses. We aren't accountants or lawyers, and can't give legal or accounting advice.

But in many respects, Bitcoin transactions work very much like cash. Just like Bitcoin, cash is anonymous and doesn't leave a paper trail, yet is widely used in commerce every day.

Ask yourself how you would handle a cash transaction. Do you accept cash transactions? Do you normally pay taxes on cash transactions? The answer for Bitcoin should probably be the same.

As for how to decide what a Bitcoin transaction is worth... the IRS, as far as we know, has never issued a guide mentioning how to value Bitcoin transactions. But they probably have rules and guidelines on how to value transactions made in foreign currency or "cash equivalents". We imagine the accounting would be similar.

With Bitcoins, there's likely to be some difference between the value of BTC when you received them as payment, versus when you go to exchange them for another currency like USD, should you decide to do so. This scenario, likewise, would be no different if you accepted foreign currency or gold as payment. Under some scenarios, it might make sense to book the dollar value of BTC income as it is received, and then to book any difference incurred when it is exchanged for fiat currency. Under others, it might make sense to book the whole thing at the time of exchange.

Perhaps you might talk to your accountant. You don't need to get into a discussion with your accountant about block chains and private keys or the philosophy behind a decentralized currency. By comparing the fundamentals of Bitcoins to accounting concepts already well understood by the public, you can probably get all the answers you need. What would you ask your accountant if you decided that you wanted to accept ''Berkshire Bucks'' or 1-ounce gold coins as payment?

== Merchant Services ==
* [http://blockchain.info/api/api_receive Blockchain.info] Free APIs to process bitcoin payments. No sign up or account needed.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions
* [[File:BitcoinRegister.gif|20px|link=http://coinbox.it/merchant]] [http://coinbox.it/merchant CoinBox] Bitcoin Point of Sales application for Android, with integration into various exchanges. Similar to Square.
* [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS] Payment Service Provider (PSP) specializing in the technical aspects of accepting cryptocurrencies - such as bitcoin. Supports Bitcoin Web Payments, Mobile Checkout, In-store Bitcoin Payments and Bitcoin Invoicing with recurring billing in bitcoin.
* [https://www.bitpay.com BitPay] Bitcoin payment processor with mobile checkout solution
* [https://www.xcoinmoney.com/ xCoinMoney] Online wallet for instant payment and subscriptions.
* [https://www.bitpagos.net BitPagos] Bitcoin and Credit Card payment processor
* [https://www.btcmerch.com BTCMerch] Payment processor for bitcoins and other cryptocurrencies. 0.5% transaction fee. Sandbox is available.
* [https://bitmerch.com BitMerch] Provides HTML buttons to start accepting bitcoins instantly. No server side setup required.
* [https://coinbase.com/docs/merchant_tools/payment_buttons Coinbase] Offers payment buttons, checkout pages, shopping cart integration, and daily cash out to USD.
* [[File:Coinkite.gif|20px|link=https://coinkite.com]] [https://coinkite.com/faq/terminal Coinkite] Full-reserve banking, payment buttons, invoice pages, hardware POS terminals, and Debit-Cards.
* [https://mtgox.com/merchant MTGOX] Bitcoin payment processing
* [https://www.okpay.com/en/services/accept-payments/index.html OKPAY] Bitcoin payment processing for merchants
* [http://fasterco.in Fasterco.in] Bitcoin payment processing for merchants and day-traders
* [http://snowcron.com Snowcron] Bitcoin Store Engine: Handles payments, sends your customers information they ordered (reg. codes, passwords...) No web programming required.
* [[File:gocoin-logo.png|20px|link=https://www.gocoin.com]] [https://www.gocoin.com/docs GoCoin International payment gateway and processing platform for Merchants]
* [https://coinvoice.com/ Coinvoice] Invoice in USD or BTC, Get paid in USD or BTC.
* [https://coinpip.com/ CoinPip] SMS and Physical Bitcoin Card Wallets, Process Bitcoin Payments and gives you the option to convert into your local currency automatically.
* [https://apicoin.io Apicoin.io] A robust, secure api to connect to the bitcoin network.

== Help this article ==

This article is a stub, please add to it!

==See Also==

* [[Merchant Howto]]
* [[In-store Transactions]]
* [[Tax compliance]]
* [[Securing online services]]
* [[BitCoins Mobile]] provides accurate up to date pricing from multiple exchanges from your Apple iPad, iPhone, or iPod Touch.
* [[Bitcoin PayFlow]] automates the process for accepting bitcoins
* [[Lazy API]] The lazy (and possibly easiest?) way to accept bitcoin payments on your website

[[Category:ECommerce]]
[[Category:Local]]

[[de:Bitcoin_als_Geschäft_akzeptieren]]

How to accept Bitcoin, for small businesses

2014-04-29T03:16:18Z

Gweedo: /* Examples */

{{merge|Merchant Howto}}

This guide is intended for small business owners who wish to help promote Bitcoin by accepting it as payment for goods and services. It's written with the assumption that you operate a regular business that sells goods or services for regular national currency such as dollars, and that you wish to accept Bitcoin as another legal way to pay, and that you intend to pay taxes on your Bitcoin income just like any other income.

With Bitcoin being touted as a way to conduct anonymous transactions and as way to compete with government currency, many small business owners wonder what's the right way to accept and account Bitcoin, or if it's legal or ethical, or whether and how they should pay taxes on income received through Bitcoin.

As far as we know, Bitcoin isn't yet formally recognized by governments and authorities as a "currency". But in practice, Bitcoin is likely no different than accepting payment in other forms, such as cash, or gold, or scrip, or gift cards or foreign currency. We think that it is pretty much the same as the local businesses of Great Barrington, Massachusetts choosing to accept their locally-printed [http://www.reuters.com/article/2007/06/19/us-usa-economy-berkshares-idUSN0530157720070619 "Berkshire Bucks"] to support their local economy.

====Starting to accept Bitcoin for transactions====
Accepting Bitcoin at a small business is best started in whichever manner keeps the accounting simple for you. This will vary by the type of business you are operating.

===Start with a sign===
[[{{ns:file}}:WeAcceptBitcoin.png‎]]

If you expect that the number of people interested in using Bitcoin is small, you might simply start by posting a sign or a note: "We Accept Bitcoin", and ask people to contact you directly in order to make a payment. Even if hardly anybody uses Bitcoin as a payment method, you're helping Bitcoin in two ways: one, by increasing awareness, and two, by making your customers more willing to accept Bitcoin as payment from others in the future, because now they know somewhere they can spend it.

===Utilize a merchant solution===
If you sell things on your website (goods or services), you'll want to use a [[#Merchant Services|Bitcoin merchant solution]] to accept the Bitcoins (you can usually opt to have them converted to USD or other currencies automatically with some services).

If you sell things in a brick and mortar shop, customers can pay using hardware terminals, touch screen apps or simple wallet addresses through QR Codes.

[[File:Bitcoin-pos-terminal.png|200 px|alt=Bitcoin POS Terminal|Coinkite terminal]] [[File:Mobile_Web_App_Bitcoin_Register.jpeg|100 px|alt=Bitcoin POS Terminal|CoinBox terminal]]

===Smart Phone or Tablet===
You can use a wallet address with any wallet. For that it's best if you can place a QR code near your register to which the customers can scan with their phone and pay (use http://ma.eatgold.com/accept to make a QR code sign).

==== Examples ====

* [[File:BitcoinRegister.gif|20px|link=http://coinbox.it/merchant]][http://coinbox.it/merchant CoinBox]
* [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS]
* [http://www.blockchain.info/wallet Blockchain.info]
* [https://www.xcoinmoney.com/ xCoinMoney] Online wallet for instant payment and subscriptions
* [https://coinbase.com/docs/merchant_tools/point_of_sale Coinbase]
* [[File:Coinkite.gif|20px|link=https://coinkite.com/promo/wikibiz]] [https://coinkite.com/promo/wikibiz Coinkite]
* [[File:gocoin-logo.png|20px|link=https://www.gocoin.com]] [https://www.gocoin.com GoCoin International Payment Processing for accepting Bitcoin and Litecoin payments]
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions
* [http://www.coinpip.com CoinPip] - Bitcoin Payment Solution for Asia
* [[File:Coin_Of_Sale_logo.png|20px|link=https://coinofsale.com]] [https://coinofsale.com Coin Of Sale] - device-independent Bitcoin POS payment system for retail merchants

===Point-of-Sale hardware terminal===
With custom hardware you can integrate with existing registers and point-of-sales solutions (example: [[File:Coinkite.gif|20px|link=https://coinkite.com/promo/wikibiz]] [https://coinkite.com/promo/wikibiz Coinkite]).

===Accounting===
When a customer makes a payment, you might simply issue a credit to their account. Ideally, you want to enter it in a way that suggests you received a payment. You could consider entering it as a "discount", but you may want to consider whether this inappropriately disguises the nature of the transaction. If on the other hand, you're giving "discounts" for Bitcoins, but then you are selling the Bitcoins for currency and then counting that as income, then chances are good that your calculation of income is making up for it. Ask your accountant.

===Businesses that offer gift cards===
If your business sells gift cards or gift certificates, you may find that the easiest way to accept Bitcoin is to accept it only for the purchase of gift cards, and then require the gift cards to be used for actual purchases of goods or services. This way, the accounting practices you already have in place for processing gift cards can be put to use. The accounting for Bitcoins would then be minimized to tracking sales of a single SKU.

This method is also ideal for retail food establishments and convenience stores, where the payment of Bitcoins through a mobile phone for a small daily food purchase might be cumbersome or disruptive, especially in front of a line of other customers. Bitcoins in this case would be best used to reload prepaid cards that can then be swiped at point-of-sale.

If you don't accept gift cards, but you already accept credit cards through a swipe terminal, consider the possibility that you could add a retail gift card system through the swipe terminal you already own. Many point-of-sale terminals, including ones from VeriFone®, are designed around the ability to support multiple applications on the same terminal. Gift cards are also highly profitable because of "breakage", or in other words, the fact that a significant percentage of them never get redeemed.

You could consider adding a private label gift card program from a provider who specializes in this, not just as a jumpstart to accepting Bitcoins, but as an extra boost to income. A private label gift card service provider necessarily have to handle your funds - they can simply provide a solution that keeps track of the balance on the cards on your behalf, including features that allow users to check their balances by phone or by web. Such a solution, of course, is also what makes the cards swipeable through the card reader.

===Businesses that mail invoices===
Does your business send out invoices to customers? Adding one line may make a huge impact for the Bitcoin economy. Perhaps you list it as a payment option just after Visa, MasterCard, and American Express, even if that means your customer must call or e-mail to make a payment.

If you have access to the programming expertise such that you can generate Bitcoin addresses programmatically, consider generating a brand new Bitcoin address for each invoice, and print it on the invoice. When a Bitcoin payment arrives, you'll automatically know where it should arrive.

Customers might wonder how much BTC they should pay in order to satisfy an invoice in full. Your invoice might suggest an amount. For example, if your invoice is for $100 and BTC's are currently worth $1.24 each, your invoice might suggest that it can be paid in full ''"with a payment of 80.65 BTC if paid by (date)"''.

You might be able to anticipate the possibility that even though a Bitcoin address can be printed on an invoice or payment stub, that they are very cumbersome for most people to type, especially being a mix of uppercase and lowercase letters. However, you should probably still do it anyway. The customer is probably going to want some paper trail for his payment. Giving him a pre-printed payment stub with a pre-printed address will satisfy that, because the customer can independently and publicly prove through [[Block Explorer]] that the payment took place.

Does your business have a website? On your invoice, consider allowing them to go to a special URL to get the address to make a Bitcoin payment just by typing in their invoice number. For example, ''ht<nowiki>tps://ww</nowiki>w.yoursite.com/paybtc'' with a form they can enter their invoice number, or just ''ht<nowiki>tps://ww</nowiki>w.yoursite.com/paybtc/60365'' for paying invoice #60365. This way, they can see the Bitcoin address, copy and paste it directly into their Bitcoin client.

Use a brand new address for each invoice whenever possible, and use it only once. This benefits the customer as it removes any ambiguity as to which customer is making which payment and for which invoice.

Known payment systems supporting invoicing, and recurring invoice setup, [[File:BIPS.gif|20px|link=https://bips.me/checkout/invoice/cb/bb]] [https://bips.me/checkout/invoice/cb/bb BIPS]

Online wallet supporting invoicing, subscriptions and recurrent payments, [https://www.xcoinmoney.com/info/sending-paying-invoices xCoinMoney]

===Avoiding fraud===

You should also consider the possible risk that fraudsters could send counterfeit invoices to your customers, and entice them to make a payment to a Bitcoin address they control, instead of you. While that isn't likely in general - it depends on how well a fraudster could find out who your customers are in the first place - it would certainly be an unpleasant situation if it ever happened. One way you could control that is, whenever possible, never let people try to type Bitcoin addresses off payment stubs - instead, force people to get the full Bitcoin address from your website via secure SSL. But, still print ''most'' of the address on the payment stub (perhaps with four or five characters starred out), so that the customer's need for a paper trail can be satisfied, so they can prove they paid if there is ever a dispute.

==Setting Prices==

When a business accepts bitcoins for payment, there generally is the need to convert them to the currencies used for paying suppliers, employees and shareholders. Some merchants set prices based on the current market rate at the time the price quote is presented to the customer (merchant services like [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS], [http://www.bit-pay.com Bit-pay], [https://coinbase.com Coinbase] or [http://paysius.com Paysius] do this automatically).

[[Bitcoin Prices]] lists the exchange rate for many currencies on multiple exchanges.

When prices are determined using an automated process, the current market rate can be based on either a current price or on a weighted average basis. [[Bitcoin Charts]] provides a [http://bitcoincharts.com/about/markets-api data feed that provides weighted prices].

When bitcoin funds for purchases are received, some merchants instantly exchange those proceeds into the preferred currency used (again done automatically by [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS], [http://www.bit-pay.com Bit-pay] or [https://coinbase.com Coinbase]. Hedging for each transaction can nearly entirely eliminate exchange rate risk that the business is exposed to when accepting bitcoins for payment.

==Contract==

A sales contract might be used to ensure that specific terms are met to lessen the chances of a misunderstanding. For instance, the party sending payment is responsible for paying any [[transaction fee]] that might be necessary. A contract might specify that a transaction fee must be paid and what amount, so as to prevent the situation where the transaction is considered a low priority transaction and thus isn't confirmed quickly.

Other items that might be addressed in a contract:

* Requirement and handling of escrow through an [[:Category:Escrow_services|escrow service]].
* Jurisdiction for disputes.
* Refund policy (particularly with the exchange rate being volatile)

==Paying taxes on Bitcoin income==
[[Tax compliance]] is a topic of concern for small businesses. We aren't accountants or lawyers, and can't give legal or accounting advice.

But in many respects, Bitcoin transactions work very much like cash. Just like Bitcoin, cash is anonymous and doesn't leave a paper trail, yet is widely used in commerce every day.

Ask yourself how you would handle a cash transaction. Do you accept cash transactions? Do you normally pay taxes on cash transactions? The answer for Bitcoin should probably be the same.

As for how to decide what a Bitcoin transaction is worth... the IRS, as far as we know, has never issued a guide mentioning how to value Bitcoin transactions. But they probably have rules and guidelines on how to value transactions made in foreign currency or "cash equivalents". We imagine the accounting would be similar.

With Bitcoins, there's likely to be some difference between the value of BTC when you received them as payment, versus when you go to exchange them for another currency like USD, should you decide to do so. This scenario, likewise, would be no different if you accepted foreign currency or gold as payment. Under some scenarios, it might make sense to book the dollar value of BTC income as it is received, and then to book any difference incurred when it is exchanged for fiat currency. Under others, it might make sense to book the whole thing at the time of exchange.

Perhaps you might talk to your accountant. You don't need to get into a discussion with your accountant about block chains and private keys or the philosophy behind a decentralized currency. By comparing the fundamentals of Bitcoins to accounting concepts already well understood by the public, you can probably get all the answers you need. What would you ask your accountant if you decided that you wanted to accept ''Berkshire Bucks'' or 1-ounce gold coins as payment?

== Merchant Services ==
* [http://blockchain.info/api/api_receive Blockchain.info] Free APIs to process bitcoin payments. No sign up or account needed.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions
* [[File:BitcoinRegister.gif|20px|link=http://coinbox.it/merchant]] [http://coinbox.it/merchant CoinBox] Bitcoin Point of Sales application for Android, with integration into various exchanges. Similar to Square.
* [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS] Payment Service Provider (PSP) specializing in the technical aspects of accepting cryptocurrencies - such as bitcoin. Supports Bitcoin Web Payments, Mobile Checkout, In-store Bitcoin Payments and Bitcoin Invoicing with recurring billing in bitcoin.
* [https://www.bitpay.com BitPay] Bitcoin payment processor with mobile checkout solution
* [https://www.xcoinmoney.com/ xCoinMoney] Online wallet for instant payment and subscriptions.
* [https://www.bitpagos.net BitPagos] Bitcoin and Credit Card payment processor
* [https://www.btcmerch.com BTCMerch] Payment processor for bitcoins and other cryptocurrencies. 0.5% transaction fee. Sandbox is available.
* [https://bitmerch.com BitMerch] Provides HTML buttons to start accepting bitcoins instantly. No server side setup required.
* [https://coinbase.com/docs/merchant_tools/payment_buttons Coinbase] Offers payment buttons, checkout pages, shopping cart integration, and daily cash out to USD.
* [[File:Coinkite.gif|20px|link=https://coinkite.com]] [https://coinkite.com/faq/terminal Coinkite] Full-reserve banking, payment buttons, invoice pages, hardware POS terminals, and Debit-Cards.
* [https://mtgox.com/merchant MTGOX] Bitcoin payment processing
* [https://www.okpay.com/en/services/accept-payments/index.html OKPAY] Bitcoin payment processing for merchants
* [http://fasterco.in Fasterco.in] Bitcoin payment processing for merchants and day-traders
* [http://snowcron.com Snowcron] Bitcoin Store Engine: Handles payments, sends your customers information they ordered (reg. codes, passwords...) No web programming required.
* [[File:gocoin-logo.png|20px|link=https://www.gocoin.com]] [https://www.gocoin.com/docs GoCoin International payment gateway and processing platform for Merchants]
* [https://coinvoice.com/ Coinvoice] Invoice in USD or BTC, Get paid in USD or BTC.
* [https://coinpip.com/ CoinPip] SMS and Physical Bitcoin Card Wallets, Process Bitcoin Payments and gives you the option to convert into your local currency automatically.

== Help this article ==

This article is a stub, please add to it!

==See Also==

* [[Merchant Howto]]
* [[In-store Transactions]]
* [[Tax compliance]]
* [[Securing online services]]
* [[BitCoins Mobile]] provides accurate up to date pricing from multiple exchanges from your Apple iPad, iPhone, or iPod Touch.
* [[Bitcoin PayFlow]] automates the process for accepting bitcoins
* [[Lazy API]] The lazy (and possibly easiest?) way to accept bitcoin payments on your website

[[Category:ECommerce]]
[[Category:Local]]

[[de:Bitcoin_als_Geschäft_akzeptieren]]

How to accept Bitcoin, for small businesses

2014-04-29T03:15:38Z

Gweedo: /* Examples */

{{merge|Merchant Howto}}

This guide is intended for small business owners who wish to help promote Bitcoin by accepting it as payment for goods and services. It's written with the assumption that you operate a regular business that sells goods or services for regular national currency such as dollars, and that you wish to accept Bitcoin as another legal way to pay, and that you intend to pay taxes on your Bitcoin income just like any other income.

With Bitcoin being touted as a way to conduct anonymous transactions and as way to compete with government currency, many small business owners wonder what's the right way to accept and account Bitcoin, or if it's legal or ethical, or whether and how they should pay taxes on income received through Bitcoin.

As far as we know, Bitcoin isn't yet formally recognized by governments and authorities as a "currency". But in practice, Bitcoin is likely no different than accepting payment in other forms, such as cash, or gold, or scrip, or gift cards or foreign currency. We think that it is pretty much the same as the local businesses of Great Barrington, Massachusetts choosing to accept their locally-printed [http://www.reuters.com/article/2007/06/19/us-usa-economy-berkshares-idUSN0530157720070619 "Berkshire Bucks"] to support their local economy.

====Starting to accept Bitcoin for transactions====
Accepting Bitcoin at a small business is best started in whichever manner keeps the accounting simple for you. This will vary by the type of business you are operating.

===Start with a sign===
[[{{ns:file}}:WeAcceptBitcoin.png‎]]

If you expect that the number of people interested in using Bitcoin is small, you might simply start by posting a sign or a note: "We Accept Bitcoin", and ask people to contact you directly in order to make a payment. Even if hardly anybody uses Bitcoin as a payment method, you're helping Bitcoin in two ways: one, by increasing awareness, and two, by making your customers more willing to accept Bitcoin as payment from others in the future, because now they know somewhere they can spend it.

===Utilize a merchant solution===
If you sell things on your website (goods or services), you'll want to use a [[#Merchant Services|Bitcoin merchant solution]] to accept the Bitcoins (you can usually opt to have them converted to USD or other currencies automatically with some services).

If you sell things in a brick and mortar shop, customers can pay using hardware terminals, touch screen apps or simple wallet addresses through QR Codes.

[[File:Bitcoin-pos-terminal.png|200 px|alt=Bitcoin POS Terminal|Coinkite terminal]] [[File:Mobile_Web_App_Bitcoin_Register.jpeg|100 px|alt=Bitcoin POS Terminal|CoinBox terminal]]

===Smart Phone or Tablet===
You can use a wallet address with any wallet. For that it's best if you can place a QR code near your register to which the customers can scan with their phone and pay (use http://ma.eatgold.com/accept to make a QR code sign).

==== Examples ====

* [[File:BitcoinRegister.gif|20px|link=http://coinbox.it/merchant]][http://coinbox.it/merchant CoinBox]
* [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS]
* [http://www.blockchain.info/wallet Blockchain.info]
* [https://www.xcoinmoney.com/ xCoinMoney] Online wallet for instant payment and subscriptions
* [https://coinbase.com/docs/merchant_tools/point_of_sale Coinbase]
* [[File:Coinkite.gif|20px|link=https://coinkite.com/promo/wikibiz]] [https://coinkite.com/promo/wikibiz Coinkite]
* [[File:gocoin-logo.png|20px|link=https://www.gocoin.com]] [https://www.gocoin.com GoCoin International Payment Processing for accepting Bitcoin and Litecoin payments]
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions
* [http://www.coinpip.com CoinPip] - Bitcoin Payment Solution for Asia
* [[File:Coin_Of_Sale_logo.png|20px|link=https://coinofsale.com]] [https://coinofsale.com Coin Of Sale] - device-independent Bitcoin POS payment system for retail merchants
* [https://apicoin.io Apicoin.io] A robust, secure api to connect to the bitcoin network.

===Point-of-Sale hardware terminal===
With custom hardware you can integrate with existing registers and point-of-sales solutions (example: [[File:Coinkite.gif|20px|link=https://coinkite.com/promo/wikibiz]] [https://coinkite.com/promo/wikibiz Coinkite]).

===Accounting===
When a customer makes a payment, you might simply issue a credit to their account. Ideally, you want to enter it in a way that suggests you received a payment. You could consider entering it as a "discount", but you may want to consider whether this inappropriately disguises the nature of the transaction. If on the other hand, you're giving "discounts" for Bitcoins, but then you are selling the Bitcoins for currency and then counting that as income, then chances are good that your calculation of income is making up for it. Ask your accountant.

===Businesses that offer gift cards===
If your business sells gift cards or gift certificates, you may find that the easiest way to accept Bitcoin is to accept it only for the purchase of gift cards, and then require the gift cards to be used for actual purchases of goods or services. This way, the accounting practices you already have in place for processing gift cards can be put to use. The accounting for Bitcoins would then be minimized to tracking sales of a single SKU.

This method is also ideal for retail food establishments and convenience stores, where the payment of Bitcoins through a mobile phone for a small daily food purchase might be cumbersome or disruptive, especially in front of a line of other customers. Bitcoins in this case would be best used to reload prepaid cards that can then be swiped at point-of-sale.

If you don't accept gift cards, but you already accept credit cards through a swipe terminal, consider the possibility that you could add a retail gift card system through the swipe terminal you already own. Many point-of-sale terminals, including ones from VeriFone®, are designed around the ability to support multiple applications on the same terminal. Gift cards are also highly profitable because of "breakage", or in other words, the fact that a significant percentage of them never get redeemed.

You could consider adding a private label gift card program from a provider who specializes in this, not just as a jumpstart to accepting Bitcoins, but as an extra boost to income. A private label gift card service provider necessarily have to handle your funds - they can simply provide a solution that keeps track of the balance on the cards on your behalf, including features that allow users to check their balances by phone or by web. Such a solution, of course, is also what makes the cards swipeable through the card reader.

===Businesses that mail invoices===
Does your business send out invoices to customers? Adding one line may make a huge impact for the Bitcoin economy. Perhaps you list it as a payment option just after Visa, MasterCard, and American Express, even if that means your customer must call or e-mail to make a payment.

If you have access to the programming expertise such that you can generate Bitcoin addresses programmatically, consider generating a brand new Bitcoin address for each invoice, and print it on the invoice. When a Bitcoin payment arrives, you'll automatically know where it should arrive.

Customers might wonder how much BTC they should pay in order to satisfy an invoice in full. Your invoice might suggest an amount. For example, if your invoice is for $100 and BTC's are currently worth $1.24 each, your invoice might suggest that it can be paid in full ''"with a payment of 80.65 BTC if paid by (date)"''.

You might be able to anticipate the possibility that even though a Bitcoin address can be printed on an invoice or payment stub, that they are very cumbersome for most people to type, especially being a mix of uppercase and lowercase letters. However, you should probably still do it anyway. The customer is probably going to want some paper trail for his payment. Giving him a pre-printed payment stub with a pre-printed address will satisfy that, because the customer can independently and publicly prove through [[Block Explorer]] that the payment took place.

Does your business have a website? On your invoice, consider allowing them to go to a special URL to get the address to make a Bitcoin payment just by typing in their invoice number. For example, ''ht<nowiki>tps://ww</nowiki>w.yoursite.com/paybtc'' with a form they can enter their invoice number, or just ''ht<nowiki>tps://ww</nowiki>w.yoursite.com/paybtc/60365'' for paying invoice #60365. This way, they can see the Bitcoin address, copy and paste it directly into their Bitcoin client.

Use a brand new address for each invoice whenever possible, and use it only once. This benefits the customer as it removes any ambiguity as to which customer is making which payment and for which invoice.

Known payment systems supporting invoicing, and recurring invoice setup, [[File:BIPS.gif|20px|link=https://bips.me/checkout/invoice/cb/bb]] [https://bips.me/checkout/invoice/cb/bb BIPS]

Online wallet supporting invoicing, subscriptions and recurrent payments, [https://www.xcoinmoney.com/info/sending-paying-invoices xCoinMoney]

===Avoiding fraud===

You should also consider the possible risk that fraudsters could send counterfeit invoices to your customers, and entice them to make a payment to a Bitcoin address they control, instead of you. While that isn't likely in general - it depends on how well a fraudster could find out who your customers are in the first place - it would certainly be an unpleasant situation if it ever happened. One way you could control that is, whenever possible, never let people try to type Bitcoin addresses off payment stubs - instead, force people to get the full Bitcoin address from your website via secure SSL. But, still print ''most'' of the address on the payment stub (perhaps with four or five characters starred out), so that the customer's need for a paper trail can be satisfied, so they can prove they paid if there is ever a dispute.

==Setting Prices==

When a business accepts bitcoins for payment, there generally is the need to convert them to the currencies used for paying suppliers, employees and shareholders. Some merchants set prices based on the current market rate at the time the price quote is presented to the customer (merchant services like [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS], [http://www.bit-pay.com Bit-pay], [https://coinbase.com Coinbase] or [http://paysius.com Paysius] do this automatically).

[[Bitcoin Prices]] lists the exchange rate for many currencies on multiple exchanges.

When prices are determined using an automated process, the current market rate can be based on either a current price or on a weighted average basis. [[Bitcoin Charts]] provides a [http://bitcoincharts.com/about/markets-api data feed that provides weighted prices].

When bitcoin funds for purchases are received, some merchants instantly exchange those proceeds into the preferred currency used (again done automatically by [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS], [http://www.bit-pay.com Bit-pay] or [https://coinbase.com Coinbase]. Hedging for each transaction can nearly entirely eliminate exchange rate risk that the business is exposed to when accepting bitcoins for payment.

==Contract==

A sales contract might be used to ensure that specific terms are met to lessen the chances of a misunderstanding. For instance, the party sending payment is responsible for paying any [[transaction fee]] that might be necessary. A contract might specify that a transaction fee must be paid and what amount, so as to prevent the situation where the transaction is considered a low priority transaction and thus isn't confirmed quickly.

Other items that might be addressed in a contract:

* Requirement and handling of escrow through an [[:Category:Escrow_services|escrow service]].
* Jurisdiction for disputes.
* Refund policy (particularly with the exchange rate being volatile)

==Paying taxes on Bitcoin income==
[[Tax compliance]] is a topic of concern for small businesses. We aren't accountants or lawyers, and can't give legal or accounting advice.

But in many respects, Bitcoin transactions work very much like cash. Just like Bitcoin, cash is anonymous and doesn't leave a paper trail, yet is widely used in commerce every day.

Ask yourself how you would handle a cash transaction. Do you accept cash transactions? Do you normally pay taxes on cash transactions? The answer for Bitcoin should probably be the same.

As for how to decide what a Bitcoin transaction is worth... the IRS, as far as we know, has never issued a guide mentioning how to value Bitcoin transactions. But they probably have rules and guidelines on how to value transactions made in foreign currency or "cash equivalents". We imagine the accounting would be similar.

With Bitcoins, there's likely to be some difference between the value of BTC when you received them as payment, versus when you go to exchange them for another currency like USD, should you decide to do so. This scenario, likewise, would be no different if you accepted foreign currency or gold as payment. Under some scenarios, it might make sense to book the dollar value of BTC income as it is received, and then to book any difference incurred when it is exchanged for fiat currency. Under others, it might make sense to book the whole thing at the time of exchange.

Perhaps you might talk to your accountant. You don't need to get into a discussion with your accountant about block chains and private keys or the philosophy behind a decentralized currency. By comparing the fundamentals of Bitcoins to accounting concepts already well understood by the public, you can probably get all the answers you need. What would you ask your accountant if you decided that you wanted to accept ''Berkshire Bucks'' or 1-ounce gold coins as payment?

== Merchant Services ==
* [http://blockchain.info/api/api_receive Blockchain.info] Free APIs to process bitcoin payments. No sign up or account needed.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - Bitcoin consulting services and solutions
* [[File:BitcoinRegister.gif|20px|link=http://coinbox.it/merchant]] [http://coinbox.it/merchant CoinBox] Bitcoin Point of Sales application for Android, with integration into various exchanges. Similar to Square.
* [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS] Payment Service Provider (PSP) specializing in the technical aspects of accepting cryptocurrencies - such as bitcoin. Supports Bitcoin Web Payments, Mobile Checkout, In-store Bitcoin Payments and Bitcoin Invoicing with recurring billing in bitcoin.
* [https://www.bitpay.com BitPay] Bitcoin payment processor with mobile checkout solution
* [https://www.xcoinmoney.com/ xCoinMoney] Online wallet for instant payment and subscriptions.
* [https://www.bitpagos.net BitPagos] Bitcoin and Credit Card payment processor
* [https://www.btcmerch.com BTCMerch] Payment processor for bitcoins and other cryptocurrencies. 0.5% transaction fee. Sandbox is available.
* [https://bitmerch.com BitMerch] Provides HTML buttons to start accepting bitcoins instantly. No server side setup required.
* [https://coinbase.com/docs/merchant_tools/payment_buttons Coinbase] Offers payment buttons, checkout pages, shopping cart integration, and daily cash out to USD.
* [[File:Coinkite.gif|20px|link=https://coinkite.com]] [https://coinkite.com/faq/terminal Coinkite] Full-reserve banking, payment buttons, invoice pages, hardware POS terminals, and Debit-Cards.
* [https://mtgox.com/merchant MTGOX] Bitcoin payment processing
* [https://www.okpay.com/en/services/accept-payments/index.html OKPAY] Bitcoin payment processing for merchants
* [http://fasterco.in Fasterco.in] Bitcoin payment processing for merchants and day-traders
* [http://snowcron.com Snowcron] Bitcoin Store Engine: Handles payments, sends your customers information they ordered (reg. codes, passwords...) No web programming required.
* [[File:gocoin-logo.png|20px|link=https://www.gocoin.com]] [https://www.gocoin.com/docs GoCoin International payment gateway and processing platform for Merchants]
* [https://coinvoice.com/ Coinvoice] Invoice in USD or BTC, Get paid in USD or BTC.
* [https://coinpip.com/ CoinPip] SMS and Physical Bitcoin Card Wallets, Process Bitcoin Payments and gives you the option to convert into your local currency automatically.

== Help this article ==

This article is a stub, please add to it!

==See Also==

* [[Merchant Howto]]
* [[In-store Transactions]]
* [[Tax compliance]]
* [[Securing online services]]
* [[BitCoins Mobile]] provides accurate up to date pricing from multiple exchanges from your Apple iPad, iPhone, or iPod Touch.
* [[Bitcoin PayFlow]] automates the process for accepting bitcoins
* [[Lazy API]] The lazy (and possibly easiest?) way to accept bitcoin payments on your website

[[Category:ECommerce]]
[[Category:Local]]

[[de:Bitcoin_als_Geschäft_akzeptieren]]

Bitcoin API Services

2014-04-28T03:33:50Z

Gweedo:

Bitcoin API Services makes accepting Bitcoin payments as easy as handling HTTP requests.

Unlike most online payment notification services, payments are not actually sent to Bitcoin API Services, so there is no need of entrusting someone else with your wallet, or letting someone else manage one for you. Payments go directly from a customer to the merchant

Bitcoin API Services also delivers HTTP POST notifications about Bitcoin exchange rates, and difficulty rates.

== How it works ==
Bitcoin API Services works by monitoring the Bitcoin network for transactions sent to addresses you can specify in your account. Bitcoin API Services can currently:

* POST amounts for variable price transactions.
* POST amounts for fixed price transactions.
* Make POSTs on Mt Gox currency and difficulty updates.

== Integration Details ==
* Merchant generates a number of Bitcoin addresses and enters them into his account. At the same time, merchant places these addresses into his store.
* The store software assigns one of these addresses to each order, or session. Once the user sends bitcoins to this address, the order is completed for the user.
* Meanwhile, the back-end of the merchants store waits for the confirmation from Bitcoin API Services. Once a confirmation is received the merchants store can either display the product to the user, or send the user an e-mail letting them know that the payment has been accepted. The address used can be released again for future use.

==History==
The service was proposed in mid-December as a redundancy to [[BitcoinNotify]]. The service officially went into beta on Wednesday, December 21st.

==Services==
* [http://blockchain.info/api Blockchain.info] - has a developer API
* [https://coinbase.com/docs/api/overview Coinbase] Features an API that lets you send, request, buy, sell, and accept bitcoin through a RESTful JSON interface.
* [https://apicoin.io/api/ apicoin.io] Features a robust, and secure blockchain API, and watch wallet features on an enterprise scale.

==See Also==
* [[:Category:ECommerce|eCommerce]]

==External Links==
* [http://www.bitcoinapiservices.com BitcoinAPIServices web site]

==References==
<references />

[[Category:Shopping Cart Interfaces]]
[[Category:Services]]

Lazy API

2014-04-28T03:30:49Z

Gweedo: /* See Also */

For the incredibly lazy and/or incompetent web developer, present is the lazy man's bitcoin API (copied from [https://bitcointalk.org/index.php?topic=4324.msg77187#msg77187 a forum post]):

==Problem==

Lazy web designer wants to use bitcoins without dealing with installing bitcoin on a server, installing a shopping cart interface, or using ugly merchant services with callbacks.

==Solution for sending bitcoins==

Use the [https://mtgox.com/support/tradeAPI MtGox API] which allows you to use the offchain payment network.

==Solution for receiving bitcoins==
# Input a list of bitcoin receiving addresses to your database
# Give a bitcoin address to a potential customer
# Have the customer tell you when they have sent the coins and have at least 1 confirmation (you can choose a number higher than 1 if you are worried about double-spending)
# Check blockexplorer to see if they sent the right amount (i.e. http://blockexplorer.com/q/getreceivedbyaddress/19hMEAaRMbEhfSkeU4GT8mgSuyR4t4M6TH/1) - the /1 is the number of confirmations you require
# Give them what they paid for
# After a reasonable amount of time has passed, you can re-use the address for another customer

==Risks==

===External Service===

BlockExplorer is a service that is provided by a private party. There is no guarantee that the information provided by BlockExplorer matches the blockchain.

There have not been any reports that BlockExplorer has reported transaction data incorrectly.

===Double Spending===

A merchant is exposed to a [[double-spending]] attack when recognizing a payment before it has been [[confirmation|confirmed]] with a sufficient number of blocks.

For an attacker to be successful with this double spend tactic a significant effort is required and thus the risk of this attack being made against the typical retail merchant is pretty minimal. It would not be advisable for a merchant with little to no recourse against an attacker to accept payment without a sufficient number of confirmations however.

==See Also==

* [[BitAddress]] Generate address and private key pairs for an offline wallet
* [[BitcoinNotify]] Register addresses and receive email or SMS alerts when a payment to that address occurs
* [https://apicoin.io apicoin.io] Allows for callback notifications to your script with security in mind.

[[de:API_für_Faule]]

[[Category:Developer]]

Lazy API

2014-04-28T03:30:25Z

Gweedo: