Ferret for ChatGPT

io.github.ferret-project/ferret

Self-hosted home inventory: find, add and update what you own, maintenance, warranties.

client:ChatGPT transport:streamable-http

Install Ferret in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://{ferret_host}/mcp

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