MCP server · Discovery
PRM reachable at a well-known URI
The metadata document is served at the path-aware or root well-known location derived from the MCP server URL, so a client can find it without a prior 401.
mcp.prm.well-known
In revision 2026-07-28
- Level
- MUST One of two discovery mechanisms the server must offer.
- Defined in
- Authorization Server Discovery › Protected Resource Metadata Discovery RequirementsMCP Authorization 2026-07-28
- Party
- MCP server
- Observable
passiveObservable by reading published metadata, without any request to the server.
Level by revision
| Revision | Level | Section |
|---|---|---|
| 2026-07-28current | MUST One of two discovery mechanisms the server must offer. | Authorization Server Discovery › Protected Resource Metadata Discovery Requirements |
| 2025-11-25 | MUST One of two discovery mechanisms the server must offer. | Authorization Server Discovery › Protected Resource Metadata Discovery Requirements |
Adoption across listed servers
- Supported4
- Partial0
- Unsupported0
- Unknown30
- Not applicable5