freebase.cloud for ChatGPT
cloud.freebase/freebase
Free cloud databases over MCP: query, store, list and annotate across 15 engines.
client:ChatGPT
transport:streamable-http
Install freebase.cloud in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://freebase.cloud/api/mcp/{token}Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs