UnoRouter

UnoRouter lets you call Claude, GPT, Gemini, DeepSeek, Qwen and many other models through a single OpenAI compatible endpoint and one API key. If an upstream provider errors or slows down, the request moves to a healthy provider automatically. It works as a drop in base URL for Claude Code, Cline and SillyTavern. Begin with the free models, then pay as you go when you need more, with no subscription. The project is open source on GitHub and includes a local first chat app.