TookEffect for ChatGPT

io.github.tookeffect/tookeffect

Independent effect verification and signed receipts for consequential AI agent actions.

client:ChatGPT transport:streamable-http

Install TookEffect in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://tookeffect.com/mcp

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