UnoRouter is an open source, OpenAI compatible LLM gateway: one API key for models from OpenAI, Anthropic, Google, DeepSeek, Qwen, Mistral and more, with smart routing and automatic failover. Use it from Claude Code, Cline, SillyTavern, RisuAI or your own code; the chat keeps history in your browser. Free tier, then pay as you go.