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All XML elements going in or out of the services are defined and validated against the following XML schemas. The schemas are well-annotated with inline documentation that explains the purpose and meaning of various elements, types, and attributes.

Schema Version Control

The files linked below are the most recent versions. CTRP maintains change control in a public GitHub repository. Updates to these files may be frequent, so consider following these links and examining changes periodically.

Schema NameSchema File(s)
CTRP Accrual REST Service Schemaaccrual_ws.xsd
CTRP Participating Site REST Service Schemas
CTRP Registration REST Service Schemas