UnoRouter: an API layer that puts every major LLM provider behind one OpenAI-compatible key
UnoRouter is an LLM API layer for backend developers that would rather integrate once than maintain a client per provider. Point your OpenAI SDK at the UnoRouter base URL and request models from OpenAI, Anthropic, Google, Meta, DeepSeek, Qwen and Mistral with one key. Smart routing checks provider health and fails over automatically, so a single upstream outage does not surface as errors in your product. The same key works in Claude Code, Cline and OpenCode. The code is open source, the bundled web chat stores conversations in the browser, and there is a free tier with free models before usage-based pay-as-you-go billing, no subscription required.