Summary
Wires Claude directly to designarena.ai's live leaderboard so you can route frontend and design tasks to whatever model is currently winning. Exposes four tools: check the top ranked model overall or by category (website, logo, dataviz, etc.), browse paginated rankings, and send prompts either to the best available model or a specific one via OpenRouter. The server caches leaderboard data for two hours, maps arena model names to OpenRouter IDs using static, dynamic, and fuzzy matching, then skips unreleased models to find the best queryable option. Reach for this when you're tired of mediocre design output and want to delegate UI, graphics, or frontend work to whichever model the crowd currently trusts most. Requires an OpenRouter API key for the query tools.
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Install now →mcp-bench-router
MCP server that delegates design tasks to whichever model currently tops designarena.ai's crowdsourced leaderboard, via OpenRouter.
Why?
AI coding assistants produce mediocre frontend/design output. designarena.ai maintains a live leaderboard of the best design models, updated every 2 hours. This MCP server lets Claude (or any MCP client) automatically route design tasks to the current best model.
Tools
| Tool | Description |
|---|---|
get_best_design_model | Get the current #1 design model, optionally by category |
get_leaderboard | Browse full rankings with category filter and pagination |
query_design_model | Send a prompt to the best available model via OpenRouter |
query_specific_model | Send a prompt to a specific model via OpenRouter |
Setup
Prerequisites
- Node.js >= 18
- An OpenRouter API key (required for
query_design_modelandquery_specific_model)
Claude Code (CLI)
claude mcp add mcp-bench-router -s user -e OPENROUTER_API_KEY=sk-or-... -- npx -y mcp-bench-router
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"mcp-bench-router": {
"command": "npx",
"args": ["-y", "mcp-bench-router"],
"env": {
"OPENROUTER_API_KEY": "sk-or-..."
}
}
}
}
Cursor
Add to .cursor/mcp.json in your project root:
{
"mcpServers": {
"mcp-bench-router": {
"command": "npx",
"args": ["-y", "mcp-bench-router"],
"env": {
"OPENROUTER_API_KEY": "sk-or-..."
}
}
}
}
Other MCP clients
OPENROUTER_API_KEY=sk-or-... npx -y mcp-bench-router
From source
git clone https://github.com/K1ta141k/mcp-bench-router.git
cd mcp-bench-router
npm install
npm run build
Categories
Filter by design category: allcategories, website, gamedev, 3d, dataviz, uicomponent, image, logo, svg, video, imagetoimage, slides, graphicdesign, tts.
Usage Examples
Check who's #1:
"Use get_best_design_model to see the current top design model"
Browse rankings:
"Show me the top 20 design models for websites"
Generate a design:
"Use query_design_model to create a landing page for a SaaS product"
Use a specific model:
"Use query_specific_model with claude-sonnet-4-5 to design a dashboard"
How It Works
- Fetches live rankings from designarena.ai's API (cached 2hr)
- Maps arena model names to OpenRouter IDs (static + dynamic + fuzzy matching)
- Skips codename/unreleased models and picks the best available one
- Routes the prompt through OpenRouter's API
License
MIT
Featured
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →An agent that runs the SEO playbooks that move rankings and ships PRs you control.
Get founding access →Connect Claude to +800M contacts, +150M companies. Find & Enrich leads in chat.
Try For Free →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Configuration
OPENROUTER_API_KEY*secretOpenRouter API key for query_design_model and query_specific_model tools. Get one at https://openrouter.ai/keys
Categories
Registryactive
Packagemcp-bench-router
TransportSTDIO
AuthRequired
UpdatedFeb 7, 2026
