TSG Recognizes Leading Payment Gateways with 2021 API Awards Recognized companies include Adyen, CSG Forte, EpicPay, FIS, and Visa News provided by Share this article Share this article OMAHA, Neb., June 9, 2021 /PRNewswire/ -- The Strawhecker Group (TSG) is pleased to recognize a selection of payments providers for their exceptional API offerings. Powered by TSG's Gateway Enterprise Metrics (GEM) platform, the "Best of Breed" API assessment ranked gateways' overall API experience. TSG first evaluated the API Set (APIs offered, response codes, and versioning) focused on understandability, functionality, and the need for technical assistance. Additionally, new to this year's analysis, TSG completed an API Developer Roadmap assessment focused on five key areas that commercial developers may see as roadblocks related to integration and API development.