MCP server · Tokens

Audience validation

The MCP server rejects tokens that were not issued for it, so a token obtained for another resource cannot be replayed against this server.

mcp.rs.audience-validation

In revision 2026-07-28

Level
MUST
Defined in
Security Considerations › Access Token Privilege RestrictionMCP Authorization 2026-07-28
Party
MCP server
Observable
active Only observable by sending requests to the server; recorded by hand or by a future active scanner, never by this site.

Level by revision

RevisionLevelSection
2026-07-28currentMUSTSecurity Considerations › Access Token Privilege Restriction
2025-11-25MUSTSecurity Considerations › Access Token Privilege Restriction

Adoption across listed servers

  • Supported0
  • Partial0
  • Unsupported0
  • Unknown34
  • Not applicable5