Of all the markets being impacted by the booming API economy, perhaps none has seen as much activity and innovation as the payments space. The past several years have seen the launch of a number of disruptive and successful API-centric upstarts, including Stripe and Balanced. Meanwhile, entrenched players like PayPal and Verifone have responded with new offerings of their own.
Five APIs have been added to the ProgrammableWeb directory in categories including Payments, Security, Bitcoin and Webhooks. Also new to the directory are SDKs for Amazon Kinesis streaming data platform and Knetik marketing platform. Here's a rundown of the latest additions.