Base API Endpoint: Five9’s Configuration Web Services are available via SOAP at https://api.five9.com/wsadmin/AdminWebService (use api.five9.eu for EU data center or api.five9.ca for Canada). The latest version as of Feb 2025 is v13 (e.g. https://api.five9.com/wsadmin/v13/AdminWebService?wsdl).
Authentication: All requests use HTTP Basic Auth with an administrator’s credentials. The username and password must be Base64-encoded and sent in the Authorization header. For example, given ExampleUsername:ExamplePassword:
Authorization: Basic RXhhbXBsZVVzZXJOYW1lOkV4YW1wbGVQYXNzd29yZA==