RESO Cloud MCP Server
The RESO Cloud MCP Server is the one production API endpoint RESO itself operates. It speaks the Model Context Protocol over Streamable HTTP at https://services.reso.org/mcp and exposes the RESO toolchain to AI agents - authenticate, query, metadata, create, update, delete and parse-filter - so an agent can work against any RESO-certified OData server without knowing OData syntax. It is a broker, not a data source: every tool call takes a target server URL and that server's credentials, and RESO stores no listing data behind it. Access is beta and gated on an API key issued by RESO on request to dev@reso.org, available to RESO members and conference attendees; an anonymous tools/list returns HTTP 401 with a JSON-RPC error pointing at that address. The same tool interfaces are available offline via the local stdio server (@reso-standards/reso-mcp-server), which adds the validate, run-compliance and metadata-report certification tools.