Blocktrail

Blocktrail provides a Bitcoin API, developers platform, and block explorer for Bitcoin and other cryptocurrencies.

Bitcoin API and Developers Platform

Blocktrail provides secure bitcoin infrastructure for developers and enterprises, enabling advanced transaction functionality and access to refined economic data-sets. Blocktrail's RESTful HTTP API is free-to-use under rate-limited conditions (1 request per second).

• Secure Bitcoin Transactions - Easily create secure transactions without giving up access to your Bitcoins, using a multi-signature HD wallet API
• Blockchain Data and Insights - Refined data on transactions, addresses, and economy analytics delivered via queries, webhooks or firehose
• Developer friendly - Blocktrail comes complete with SDK's for PHP, Python, NodeJS and more!

Blocktrail Bitcoin API

Block Explorer

Get insights and analytics on bitcoin addresses and transactions using Blocktrail's online Block Explorer

• Time-based balance analysis - Get usage information based on selectable time periods
• Mentions - Easily see if your searched address appears in any third-party data source
• Address Tags - Quickly determine if the address was involved in known transactions (gambling, donations, etc).
• Search via QR - Search any QR code in one click, directly from our homepage
• Bookmarks & Lists - Easily bookmark addresses and add them to lists for grouped summaries of transactions and balances.
• Block Size Vote - Stay up to date with current block size votes.

BlockTrail Block Explorer

Examples

Get Bitcoin Address

$ curl "https://api.blocktrail.com/v1/btc/address/1NcXPMRaanz43b1kokpPuYDdk6GGDvxT2T?api_key=MY_APIKEY"

{
   "address": "1NcXPMRaanz43b1kokpPuYDdk6GGDvxT2T",
   "hash160": "ED12908714FFD43142BF9832692017E8AD54E9A8",
   "balance": 49497392,
   "received": 115015000,
   "sent": 65517608,
   "unconfirmed_received": 0,
   "unconfirmed_sent": 0,
   "unconfirmed_transactions": 0,
   "total_transactions_in": 4,
   "total_transactions_out": 10,
   "category": "donations",
   "tag": "blocktrail"
}

Get Latest Block

$ curl "https://api.blocktrail.com/v1/btc/block/latest?api_key=MY_APIKEY"

{
   "hash": "000000000000000005afebaa75ff40714a1ed96539adb1266bbf7be9aaf767ae",
   "height": "321129",
   "block_time": "2014-09-17T09:00:26+0000",
   "difficulty": "29829733124.00000000",
   "merkleroot": "aaadea1a8c2cb1777d822d47e6acd0360b2f2e4f3c7c1f79cb4284866457ade3",
   "prev_block": "000000000000000019bea784e37fe450d522b9a4f0a4e8dcad4bd7c9283e4203",
   "next_block": null,
   "byte_size": "670679",
   "confirmations": 1,
   "transactions": "727",
   "value": "277325560913",
   "miningpool_name": "Eligius",
   "miningpool_url": "http://eligius.st",
   "miningpool_slug": "eligius"
}

Links

• BlockTrail.com
• Follow @blocktrail on twitter
• API Documentation