UnoRouter is an open source LLM gateway that speaks the OpenAI API. Point any OpenAI client at it and one key reaches models from OpenAI, Anthropic, Google, DeepSeek, Qwen, Mistral and other providers.
Smart routing picks a healthy provider for each request, and automatic failover retries elsewhere when one goes down. It drops into Claude Code, Cline, SillyTavern, RisuAI or your own code once you change the base URL. The web chat is local first, so your history stays in the browser.
There is a free tier to try it, then you pay as you go per request with no subscription. Docs live at unorouter.com/docs and feedback from other developers is very welcome.