Publish and discover
MCP tool schemas.
Version MCP tool input schemas. Detect breaking changes before they break your integrations. Discover what tools other servers expose.
Composition Builder →REST API
GET
/api/registryList all schemas (latest version per tool)POST
/api/registry{ action: "publish", name, version, inputSchema, description? }POST
/api/registry{ action: "lookup", name, version? }POST
/api/registry{ action: "compat", name, from, to }