Client · Registration

Credentials stored per issuer

The client stores registered client credentials keyed by the authorization server issuer rather than by MCP server URL, so one registration serves every resource behind that issuer.

mcp.client.credentials-keyed-by-issuer

In revision 2026-07-28

Level
MUST
Defined in
Client Registration › Credential StorageMCP Authorization 2026-07-28
Party
Client
Observable
manual Requires reading documentation or source; recorded by people.

Client-side requirement: not shown in the server matrix. It is recorded so later tools can cite it.

Level by revision

RevisionLevelSection
2026-07-28currentMUSTClient Registration › Credential Storage
2025-11-25not defined