SOAPDouglas Karr Dec 24, 2022 A type of web API that uses XML to encode data and transmit it over HTTP. SOAP APIs are more standardized and structured than REST APIs, and are often used in enterprise environments where security and reliability are important.Related Martech Zone Content What Is An API? And Other Acronyms: REST, SOAP, XML, JSON, WSDL 50+ Questions You Should Ask About A Vendor’s API Before Selecting A Platform What PHP Extensions Should Your Host Provide for a High-Performance WordPress Site? Direct-To-Consumer (DTC/D2C) Is A Precarious Bet Unless You Get It Right