UnoRouter

UnoRouter sits between your code and the AI labs. You send OpenAI style requests to one base URL with one key, and it forwards them to models from OpenAI, Anthropic, Google, DeepSeek, Qwen, Mistral and others. Health checks and automatic failover move traffic off a provider that errors or rate limits, so an upstream incident does not become your incident. It works with the OpenAI SDKs, LangChain, Claude Code and Cline without code changes beyond the endpoint. The full stack is open source, there is a free tier, and paid usage is billed per request with no subscription.