PaySimple API - Articles Payments Billing, Business Online payment processing service for ACH and Credit Cards With industry low transaction rates, no API surcharge, and revenue sharing opportunity, your business is poised to gain a profitable new recurring revenue stream.Track API VersionsSDKs (4)How To(0)Source Code(3)Libraries(0)Developers (0)Followers (37)Changelog (7) Versions SDKs Articles How To Source Code Libraries Developers Followers ChangelogSpecs API Endpoint https://sandbox-api.paysimple.com/v4 API Portal / Home Page http://developer.paysimple.com/ Primary Category Payments Secondary Categories Billing, Business SSL Support Yes Twitter URL https://twitter.com/paysimple Developer Support URL https://support.paysimple.com/s/ Authentication Model API Key Version -1 Version status Recommended (active, supported) Is the API Design/Description Non-Proprietary ? No Type Web/Internet Scope Single purpose API Device Specific No Architectural Style REST Supported Request Formats URI Query String/CRUD Supported Response Formats JSON Is This an Unofficial API? No Is This a Hypermedia API? No Restricted Access ( Requires Provider Approval ) Yes