The Spreedly Python SDK by Dani allows API communication to integrate payment features into web services. Resources include installation and documentation. Spreedly interacts with Authorize.net, WorldPay, and CyberSource as payment gateways.
BIPS, Bitcoin payment system, allows users to buy or sell online using Bitcoin digital currency. In addition to Bitcoin transaction-based apps and an e-wallet, BIPS provides an API that users can integrate with existing workflows and tools. Merchants can utilize Bitcoin currency alongside traditional currency transactions.