Session Relay for ChatGPT

io.github.dimitrihilverda/claude-session-relay

Self-hosted relay: agent sessions on different machines share a board, chat and check git conflicts

client:ChatGPT transport:streamable-http

Install Session Relay in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://{relay_host}/mcp

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