Clearent is a powerful payments platform offering an amazingly easy-to-use WordPress plug-in that enables fast, secure checkout for WordPress users and  their customers. https://wordpress.org/plugins/clearent-payments/

Our unique developer friendly payments platform utilizes RESTful APIs and a suite of developer centric features that allow for integration virtually anywhere. Clearent was launched as a tech start-up aimed at revolutionizing the complicated world of payments using its own powerful proprietary software. Unlike more specialty APIs in the market, Clearent is a true full-stack payments processor, handling transactions from end-to-end. This means greater control, flexibility, and ease of integration. With Clearent’s dedicated integration teams, LIVE U.S. based tech support, and generous developer profit sharing programs, we make integrating with us painless and we pay you to do it! Check out our docs or contact us at (http://developer.clearent.com)