Contexter for ChatGPT

io.github.maaakso/contexter

Share one project context across ChatGPT, Claude, Telegram and any MCP client.

client:ChatGPT transport:streamable-http

Install Contexter in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://contexterai.com/mcp

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