Visa lists Alchemy Pay as an official service provider, Alchemy Pay has been added as part of Visa's Third Party Agent (TPA) program, a TPA is an agent that is not directly connected to VisaNet, but provides direct or indirect Provide payment-related services and/or store, process or transmit Visa cardholder data. The Third-Party Agent Program is a Visa-mandated program designed to ensure that Visa customers comply with Visa regulations, the Payment Card Industry Data Security Standard (PCI DSS) and other applicable security standards when using third-party agents.