Multi-CLI MCP
An MCP server that bridges multiple AI coding CLIs, such as Claude Code, Antigravity, Codex and OpenCode, so any one of them can call the others as tools and get a second opinion.
Multi-CLI MCP sits between installed AI command-line clients and lets whichever one a developer is using ask any of the others for input, hiding each client's own tools so it does not talk to itself. A one-line installer detects which CLIs are installed and configures each of them automatically; Claude Code is set up to use a local per-user HTTP service, while the other clients keep using their own local configuration.
The project updates its own list of available models nightly through a scheduled job that queries each CLI's latest stable release and republishes a new version when anything changes; Antigravity's models, which depend on local sign-in, are instead discovered live.
It requires Node.js 20 or newer and at least one of the supported CLIs installed.