Let Agents In for ChatGPT

com.letagentsin/scanner

Scan agent readiness, or find measured providers an unattended AI agent can finish with.

client:ChatGPT transport:streamable-http tools:2

Install Let Agents In in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://letagentsin.com/mcp

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