anthropic-max-router

Dual API router (Anthropic + OpenAI compatible) for Claude MAX Plan - Use flat-rate billing with ANY AI tool: OpenAI SDK, LangChain, Anthropic SDK, and more. Maintained by nsxdavid on GitHub, where it has earned 61 stars from the community.

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