A2A Transfer Methods
This is a directory of sites and services where account-to-account (A2A) transfers are possible.
Bitcoin Accounts
The following are sites and services where bitcoins may be transferred from one user account to another, internally, without there being an external transaction (e.g., blockchain, bank network, etc.).
| Service | Website | Method | Exchanges | Notes / Alternate |
| Bitcoin-Central | Bitcoin-Central.net | Transfer (Withdraw) | n/a | Transfer BTC or Liberty Reserve (LRUSD and LREUR) |
| Bitstamp | Bitstamp.net | Redeemable code | BitInstant | Denominated in BTC, USD, or a combination of BTCs and USDs. |
| BTC-E | BTC-e | Redeemable code | BitInstant | Denominated in USD only. |
| Camp BX | CampBX.com | Transfer | n/a | BTC transfers only. Transfer to recipient's CBX Instant Transfer Code (shown in User Profile). |
| Mt. Gox | MtGox.com | Redeemable code | BitInstant AurumXChange |
Denominated in BTC, USD, EUR, GBP, CAD, AUD, and all other wallet currencies supported by Mt. Gox |
Other
Financial services which allow transfer of funds from one account to another.
| Service | Website | Method | Exchanges | Notes / Alternate |
| Intrade | Intrade.com | Transfer | Bitcoin TX | Customer-to-customer transfer, requested made by phone or via e-mail. |
| OKPay | OKPay.com | Send Money | n/a | Send money to any e-mail address or OKPay Wallet ID. |
| PayPal | PayPal.com | Send Money | n/a | Send money to any e-mail address or mobile number. |