Antigravity Claude Proxy is a proxy server that exposes an Anthropic-compatible API backed by Antigravity's Cloud Code, enabling the use of Claude and Gemini models with Claude Code CLI and OpenClaw or ClawdBot.
The tool solves the problem of accessing Claude and Gemini models through tools that expect an Anthropic-compatible interface. It works by receiving requests in Anthropic Messages API format, using OAuth tokens from Google accounts or Antigravity's local database, transforming requests to Google Generative AI format with Cloud Code wrapping, sending them to Antigravity's Cloud Code API, and converting responses back to Anthropic format with support for thinking and streaming.
The proxy is designed for developers who want to use Claude Code CLI or OpenClaw with models provided through Antigravity's infrastructure. It suits projects where you have access to Antigravity's Cloud Code and want to bridge it with tools expecting Anthropic compatibility. The README includes a prominent warning that Google has issued Terms of Service violation bans on accounts connected to this proxy and recommends using a burner account rather than a main account. Installation is available through npm or by cloning the repository, with prerequisites of Node.js 18 or later and either Antigravity installed for single-account mode or Google accounts for multi-account mode.
The project maintains a web dashboard for account management and proxy control, offering commands to start, stop, restart, and check the status of the proxy server running on localhost:8080. Account linking can be done through the web dashboard with OAuth authorization, via CLI commands, or automatically if Antigravity is already installed and logged in. The tool supports both browser-based and headless server configurations, with manual authorization mode available for remote servers without direct browser access.
