CLIProxyAPI is a proxy server that wraps multiple AI model providers as OpenAI, Gemini, Claude, and Codex compatible APIs.
The tool solves the problem of accessing various AI services through a unified API interface. It works by intercepting requests to different AI providers—including Antigravity, ChatGPT Codex, Claude Code, and Grok Build—and translating them into compatible API formats. This allows developers to use multiple AI models through standardized endpoints without rewriting client code for each provider.
Developers should choose this tool if they want to access multiple AI services through a single, standardized API layer. It suits projects that need flexibility across different AI providers or want to leverage free tier offerings from various services. The project is particularly useful for those building CLI tools or applications that benefit from provider abstraction. A desktop client is available for users who prefer graphical configuration over command-line setup.
The project shows active development with regular commits addressing bug fixes and feature additions. The codebase maintains clear separation between proxy logic and provider implementations, making it straightforward to add new providers. Documentation is provided in multiple languages, indicating attention to accessibility for a diverse user base. The tool is written in Go, which provides efficient performance characteristics suitable for a proxy service handling API requests.
