- **Epistemic status:** #seedlings Simple Object Access Protocol or SOAP is a protocol similar to [[Representational State Transfer (REST)]] in that it's a type of Web [[Application Programming Interface (API)]]. It was the first to standardize how applications should communicate and manage services. The data is formatted in XML format. SOAP didn't get major adoption due to its rigid standards that were heavy and very resource-intensive. Most developers pick [[Representational State Transfer (REST)]] over SOAP. --- ## References - “What Is SOAP?” Accessed April 28, 2022. <https://www.tutorialspoint.com/soap/what_is_soap.htm>.