MCP Bench Router

Claude Code sucks at design. Let it delegate it's tasks to better models. Claude will use the MCP to get leaderboard of best design models and query specific code changes using OpenRouter.

MCP server that delegates design tasks to whichever model currently topsdesignarena.ai's crowdsourced leaderboard, viaOpenRouter.

- Node.js >= 18
- AnOpenRouter API key(required forquery_design_modelandquery_specific_model)

claude mcp add mcp-bench-router -s user -e OPENROUTER_API_KEY=sk-or-... -- npx -y mcp-bench-router

{ "mcpServers": { "mcp-bench-router": { "command": "npx", "args": ["-y", "mcp-bench-router"], "env": { "OPENROUTER_API_KEY": "sk-or-..." } } } }

Add to.cursor/mcp.jsonin your project root:

{ "mcpServers": { "mcp-bench-router": { "command": "npx", "args": ["-y", "mcp-bench-router"], "env": { "OPENROUTER_API_KEY": "sk-or-..." } } } }

OPENROUTER_API_KEY=sk-or-... npx -y mcp-bench-router

git clone https://github.com/K1ta141k/mcp-bench-router.git cd mcp-bench-router npm install npm run build

Filter by design category:allcategories,website,gamedev,3d,dataviz,uicomponent,image,logo,svg,video,imagetoimage,slides,graphicdesign,tts.

"Use get_best_design_model to see the current top design model"

"Show me the top 20 design models for websites"

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

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

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