MCP Token Audience Check: expectedResource Tested (2026)
October 6, 2026
I tested the MCP TypeScript SDK's new expectedResource option for token audience validation. It is off by default and Express adapter 2.0.1 ignores it (2026).
I tested the MCP TypeScript SDK's new expectedResource option for token audience validation. It is off by default and Express adapter 2.0.1 ignores it (2026).