UnoRouter is an open source LLM gateway for indie makers who want to ship AI features without signing up for five different model vendors. You get one OpenAI compatible endpoint and one key, then pick models from OpenAI, Anthropic, Google, DeepSeek, Qwen and many others just by changing the model name. When a provider slows down or goes offline, requests fail over to another healthy route, so a side project does not break at 2am. It drops into your own code, Claude Code, Cline and chat clients that speak the OpenAI API. Chat history stays local in your browser, the code is public, and you can start on the free tier and move to pay as you go with no subscription.