UnoRouter is a model routing API for AI builders that lets one OpenAI compatible key call GPT, Claude, Gemini, DeepSeek, Qwen and other major models without separate vendor accounts.
Builders use it to prototype with free models, then ship on whichever model fits each task: set UnoRouter as the base URL in your SDK, Claude Code, Cline or OpenCode and change only the model name. Smart routing moves traffic to a healthy provider when one fails or rate limits, so agents and apps keep answering. Pricing is pay as you go after a free tier, with no subscription. The project is open source, and its web chat keeps conversations local in the browser.
Builders use it to prototype with free models, then ship on whichever model fits each task: set UnoRouter as the base URL in your SDK, Claude Code, Cline or OpenCode and change only the model name. Smart routing moves traffic to a healthy provider when one fails or rate limits, so agents and apps keep answering.
Pricing is pay as you go after a free tier, with no subscription. The project is open source, and its web chat keeps conversations local in the browser.