opencodex

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code. Maintained by lidge-jun on GitHub, where it has earned 371 stars from the community.

It's actively developed around ai-gateway, ai-tools, anthropic, and is a solid reference for anyone building with these tools.