toolmesh for ChatGPT

io.github.dunkelcloud/toolmesh

Self-hosted MCP gateway. Turn any REST API into MCP tools via YAML (DADL). Authz, audit, policies.

client:ChatGPT transport:streamable-http

Install toolmesh in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://{host}:8123/mcp

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