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MCP Bench Router MCP server

by K1ta141k·io.github.K1ta141k/mcp-bench-router·v1.0.1·7 stars
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Routes design tasks to designarena.ai's top-ranked model via OpenRouter across 14 categories.

C66/100grade C
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Safety scan
C66/100

full report

Adoption
New

7 stars46 downloads/wk

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MCP Bench Router tools (4, 2 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • get_best_design_model

    Get the current #1 design model from designarena.ai's crowdsourced leaderboard, optionally filtered by category. Returns model info and OpenRouter availability.

  • get_leaderboard

    Browse the full designarena.ai design model rankings with optional category filter and pagination. Shows Elo ratings, win rates, and OpenRouter availability.

  • query_design_modelwrite action

    Send a design prompt to the best available model on OpenRouter, automatically selected from designarena.ai rankings. Skips models not available on OpenRouter. Requires OPENROUTER_API_KEY.

  • query_specific_modelwrite action

    Send a design prompt to a specific model via OpenRouter. Accepts either an OpenRouter model ID (e.g. 'anthropic/claude-sonnet-4-5-20250514') or a Design Arena model name (e.g. 'claude-sonnet-4-5'). Requires OPENROUTER_API_KEY.

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

no findings
  • Code scan23 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 233 days ago4/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 66/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How MCP Bench Router compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
66/100
higher than 28% of 4,460 AI and agents servers
Tools
4
the typical AI and agents server has 6
Tools that change things
50%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
7
more than 81% of 2,711 AI and agents servers
Downloads a week
46
more than 38% of 1,538 AI and agents servers with a package

What its tools let an agent do: 2 read · 2 change

Install MCP Bench Router in Claude Code, Cursor or VS Code

Runs npx -y mcp-bench-router on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add mcp-bench-router -- npx -y mcp-bench-router
Add to Cursor

What the publisher says

From the MCP Bench Router repository's README, as published. We do not edit it. Read it on GitHub

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

Setup

Prerequisites

  • Node.js >= 18
  • An OpenRouter API key (required for querydesignmodel and queryspecificmodel)

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/claudedesktopconfig.json (macOS) or %APPDATA%\Claude\claudedesktopconfig.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 getbestdesign_model to see the current top design model"

Browse rankings:

"Show me the top 20 design models for websites"

Generate a design:

"Use querydesignmodel to create a landing page for a SaaS product"

Use a specific model:

"Use queryspecificmodel with claude-sonnet-4-5 to design a dashboard"

How It Works

  1. Fetches live rankings from designarena.ai's API (cached 2hr)
  2. Maps arena model names to OpenRouter IDs (static + dynamic + fuzzy matching)
  3. Skips codename/unreleased models and picks the best available one
  4. Routes the prompt through OpenRouter's API

License

MIT

Nothing above is checked by us. What we check is on the safety report.

MCP Bench Router: common questions

Is MCP Bench Router MCP server safe?
With care: it is graded C, so read the findings first (66/100). Read the MCP Bench Router safety report
How do I install MCP Bench Router?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does MCP Bench Router need an API key?
Yes. The registry entry asks for OPENROUTER_API_KEY.
Is MCP Bench Router maintained?
The last commit was 269 days ago (2026-02-08). The latest release is v1.0.1.
What can I use instead of MCP Bench Router?
Servers from other publishers that do the same job: Figma Context MCP server, LLM Sandbox MCP server and Agent-Native Design MCP server.
How does MCP Bench Router compare with other AI and agents MCP servers?
safety score 66/100 (higher than 28% of 4,460 AI and agents servers); tools 4 (the typical AI and agents server has 6); tools that change things 50% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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