Unorouter MCP Server

unorouter-mcp

MCP server for UnoRouter, an open-source OpenAI-compatible gateway serving 200+ models (Claude, GPT, Gemini, DeepSeek, Kimi, GLM, Qwen and more) behind a single API key. Models with a :free suffix cost nothing.

Gives any MCP client (Claude Desktop, Claude Code, Cursor, Windsurf, and friends) three tools:

• search_models: filter the live catalog, optionally free models only
• get_pricing: USD per-1M-token list prices from the public pricing endpoint
• chat: send a prompt to any model and get the reply with token usage

Setup

Create an API key at unorouter.com/token (Discord or GitHub sign-in, no card required).

Claude Desktop / any MCP client

{
  "mcpServers": {
    "unorouter": {
      "command": "npx",
      "args": ["-y", "unorouter-mcp"],
      "env": {
        "UNOROUTER_API_KEY": "sk-your-key"
      }
    }
  }
}

Claude Code

claude mcp add unorouter -e UNOROUTER_API_KEY=sk-your-key -- npx -y unorouter-mcp

Environment

Notes

• Free models run on shared pools with a light per-model rate limit (about 1 request per minute per model); rotate between free models or use paid ones for throughput.
• The whole UnoRouter stack is open source: github.com/unorouter.

Development

bun install
bun run build
UNOROUTER_API_KEY=sk-... node dist/index.js