UnoRouter

UnoRouter is an OpenAI-compatible AI model gateway that connects developers and end users to hundreds of models from dozens of upstream providers through a single API key. It is actively live, with the homepage displaying real-time token throughput and request counters. The platform serves both technical users building apps and agents, and non-technical users who want to chat with AI characters directly in the browser.

What It Is

UnoRouter sits in the unified API category: a single endpoint that proxies requests to 298+ models from 38+ upstream providers, including OpenAI, Anthropic, Google, Mistral, DeepSeek, Meta, Nvidia, Alibaba Cloud, and many others. The site describes it as "Unified AI API platform providing access to hundreds of models from multiple providers through a single, intelligent endpoint." Because the API surface is fully OpenAI-compatible, any client or tool that already speaks the OpenAI chat completions format can switch to UnoRouter without code changes.

Dual Audience: Developers and Chat Users

The platform explicitly targets four client categories:

• Coding agents — OpenCode, Cline, Roo Code, Kilo Code, Zed, Claude Code, Codex CLI, Gemini CLI, Aider, Continue.dev, and more
• Character & fiction clients — SillyTavern, Janitor.AI, Chub/Venus, RisuAI
• General chat clients — LibreChat, Open WebUI, LobeChat, AnythingLLM, CherryStudio, TypingMind, Chatbox, Big-AGI, BoltAI
• CLI tools — Aider, Codex, Gemini CLI, OpenClaw, Hermes Agent

Each category has dedicated integration guides in the documentation.

Built-in Chat Client

Beyond the API, UnoRouter ships a browser-based character chat client. The site states: "Free models are already connected, so there's no signup, no key, and no setup." Features include personas, lorebooks, presets, prompt templates, SillyTavern card import, group chat, swipes, and a local DB browser. Conversations are stored in the browser, not on UnoRouter's servers. Users can also bring their own OpenAI-compatible endpoint and key, fired directly from the browser.

Model Coverage and Free Tier

The homepage lists 219 free (no-cost) models and 79 paid (per-token) models at the time of crawl. Free models span providers including OpenAI (gpt-4.1, gpt-4o, gpt-oss series), Google (Gemini, Gemma), Mistral, DeepSeek, Meta Llama, Nvidia Nemotron, Alibaba Qwen, Cohere, Perplexity Sonar, and many community fine-tunes. Paid models include Claude Opus/Sonnet series, newer GPT-5 variants, image generation models (FLUX, Sora, Wan, Kling, Doubao), and video generation models (Veo, Sora-2). Credits never expire, per the site.

Setup Path

The site describes a three-step onboarding: create an account (no credit card required), optionally top up or subscribe for paid models, then copy the API key and paste it into any OpenAI-compatible client. The API base URL is https://api.unorouter.com/v1. An API Inspector tool is also available for testing model responses directly in the browser.