MCP OAuth client-interop conformance for ChatGPT

com.textforagents/mcp-oauth-client-interop-conformance

Prove real MCP clients can connect: 5-client x 3-IdP OAuth matrix with shim fixes.

client:ChatGPT transport:streamable-http tools:5

Install MCP OAuth client-interop conformance in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://textforagents.com/products/mcp-oauth-client-interop-conformance/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs