Bitcoin 24/7 is a Bitcoin exchange and merchant service that offers a Bitcoin wallet in which to store Bitcoins, and a payment service to allow merchants to accept and make payments using Bitcoins. The Bitcoin 24/7 API allows merchants to automate accepting Bitcoins as a payment. It also offers users the ability to send Bitcoins as payments from an account for use as refunds or withdrawals. The API uses REST calls and will returns JSON or XML. An account is required with service.