UnoRouter

Visit website

OpenAI-compatible gateway routing chat/completions across 500+ models with a free tier.

About UnoRouter

UnoRouter is a unified API platform that provides access to AI models from multiple providers through a single API key and endpoint. It lists 306 routable models from 47+ upstream providers, split between free and paid tiers, and exposes an OpenAI-compatible API so existing code written for other providers can switch without changes. The platform reports serving over 97 billion tokens across more than 4.4 million requests.

The service targets developers building applications and agents, as well as users of coding agents (OpenCode, Cline, Roo Code, Kilo Code, Zed), CLI tools (Aider, Codex, Gemini CLI, OpenClaw), and character/fiction chat clients (SillyTavern, Janitor.AI, Chub, RisuAI). Integration is done by generating an API key and using it as a bearer token against an OpenAI-compatible chat completions endpoint.

UnoRouter also includes a built-in browser-based chat client with character chat features such as personas, presets, lorebooks, group chat, swipes, and SillyTavern card import. Free models are accessible in this chat client without an account or API key, and it supports bringing a custom OpenAI-compatible endpoint and key, with conversations kept in the browser rather than stored on the server. Signup requires no credit card, and purchased credits do not expire.

Key features

Access 306+ AI models from 47+ upstream providers through one API key
OpenAI-compatible API endpoints with automatic provider failover
Built-in browser-based chat client with characters, personas, and lorebooks
SillyTavern card import and character chat engine with group chat and swipes
Works with coding agents, CLI tools, and chat clients (OpenCode, Aider, SillyTavern, and more)
BYOK support—bring your own OpenAI-compatible endpoint and key from the browser

Frequently asked questions

Is there a free tier?

Yes, users can start free with no credit card required, and 213 of the 306 models are free to use.

What clients and tools does UnoRouter integrate with?

It works with coding agents like OpenCode, Cline, Roo Code, Kilo Code, and Zed, character clients like SillyTavern, Janitor.AI, Chub, and RisuAI, and CLI tools like Aider, Codex, and Gemini CLI.

Do I need an API key to try it?

No, the built-in chat client has free models already connected, so you can chat without signup or an API key.

Is UnoRouter compatible with OpenAI's API format?

Yes, it provides fully OpenAI-compatible endpoints so you can switch from any provider without changing your code.

Do purchased credits expire?

No, credits never expire.

Advertise here