UnoRouter

UnoRouter is a unified API platform providing access to more than 383 AI models from more than 53 providers through a single API key, letting users build applications, run agents, or chat with AI characters without managing multiple integrations. It offers OpenAI-compatible API endpoints with automatic provider failover, a built-in browser-based chat client with character support requiring no setup, and support for 292 free models alongside 91 paid models. Private conversations are stored locally in the browser, and UnoRouter integrates with popular tools including SillyTavern, Cline, and Aider. It offers a free tier with no credit card required, a pay-as-you-go credit system for premium models with credits that never expire, and subscription options for topping up as needed.