UnoRouter

UnoRouter is an open-source LLM gateway for side projects and small SaaS products that would rather keep one key than five. It accepts standard OpenAI-format requests and passes them on to models from OpenAI, Anthropic, Google, Meta, DeepSeek, Qwen and Mistral.

Reliability is handled for you: smart routing checks which providers are healthy and moves a call elsewhere automatically if one starts failing. The same key works in a backend service, in Claude Code, in Cline, in OpenCode and in other OpenAI compatible clients.

There are free models and a free tier, then pay-as-you-go pricing without a subscription. Conversations in the built-in chat are stored locally in your browser.