UnoRouter: one account for the leading AI models unorouter.com

UnoRouter is a single access point for artificial intelligence models from companies such as OpenAI, Anthropic, Google and DeepSeek. Instead of opening an account and paying a bill with each provider, you get one key that works with all of them, and the service sends each request to a provider that is up at that moment. It plugs into existing apps and chat tools that already speak the OpenAI format. The software is open source, there is a free tier, and after that you pay only for what you use, with no subscription.