UnoRouter is an AI API service for hobbyists, students and side projects that lets them start calling language models for free, with no card on file.
Sign up, copy a key, and use the free models straight away from any app or script that speaks the OpenAI API. When a project outgrows them, that same key also reaches paid models from OpenAI, Anthropic, Google and DeepSeek, billed only for what you actually use.
If one upstream provider fails, requests move to another automatically. Tools such as Claude Code and Cline work with it too. The project is open source, and its web chat keeps your conversations in the browser.
