Knowl for ChatGPT
io.github.dat999zx/knowl
Persistent memory for Claude Code, Cursor and Codex. Facts retire when they change.
client:ChatGPT
transport:streamable-http
runtime:npm
Install Knowl in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://api.knowl.cloud/mcp/
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs