Connect Private Mcp Servers To Codex Without Inbound Firewall Rules

OpenAI's customer-run daemon that connects private or localhost MCP servers to ChatGPT, Codex, the Responses API, and AgentKit via an OpenAI-hosted tunnel, avoiding public exposure. Go CLI with health/metrics endpoints, OAuth support, and an embeddable Go SDK.

MCP | Go · mcp-tunnel · mcp-gateway