What is the key difference between Build and Llm Router?

Build belongs to the Developer Tools category with local stdio execution, while Llm Router belongs to the Developer Tools category with local stdio execution.

How do I install Build or Llm Router in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Build and Llm Router free or paid?

Build operates under a Free / Open Source model (No auth required). Llm Router operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Build lists 5 tools with 4 views and 139 GitHub stars. Llm Router lists 6 tools with 3 views and 79 GitHub stars.

Can I use both Build and Llm Router together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Build vs Llm Router

In-depth architectural comparison of the Build and Llm Router MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Build

Developer Tools · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Llm Router

Developer Tools · Local stdio

Quality: 56/100 (Good) | Auth: No auth required

Verdict Summary: Choose Build if you need specialized Developer Tools tools running via a local process. Choose Llm Router if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Build when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Schema-validated structured JSON output, Human-readable MCP content output, TypeScript compiler support.

Explore Build Details

Choose Llm Router when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: OPENAI_API_KEY, GEMINI_API_KEY, OLLAMA_BASE_URL, OPENROUTER_API_KEY.
Primary tools included: Complexity- and cost-aware model routing, Claude subscription quota protection, Support for 20+ model providers.

Feature & Specification Comparison

Specification	Build Developer Tools	Llm Router ypollak2 Developer Tools
Summary	Structured build tool output (tsc, generic commands) as typed JSON diagnostics.	Subscription-aware LLM router for Claude Code. Routes tasks to 20+ providers (OpenAI, Gemini, Groq, Ollama, Codex) based on complexity classification, Claude subscription pressure, and cost. Free tasks stay on Claude subscription; expensive tasks fall back to the cheapest capable model. Includes 30 MCP tools, 6 auto-routing hooks, semantic dedup cache, prompt caching, daily spend cap, and a live web dashboard.
Category & Scope

Tools & Capabilities Breakdown

Build Tools (5)

Schema-validated structured JSON output

Human-readable MCP content output

TypeScript compiler support

esbuild, Vite, and webpack coverage

Reduced reliance on fragile CLI parsing

Llm Router Tools (6)

Complexity- and cost-aware model routing

Claude subscription quota protection

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Build Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "build": {
      "command": "npx",
      "args": [
        "-y",
        "@paretools/init"
      ]
    }
  }
}

Llm Router Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "ypollak2-llm-router": {
      "command": "uvx",
      "args": [
        "llm-routing"
      ],
      "env": {
        "OPENAI_API_KEY": "YOUR_OPENAI_API_KEY_HERE",
        "GEMINI_API_KEY": "YOUR_GEMINI_API_KEY_HERE",
        "OLLAMA_BASE_URL": "YOUR_OLLAMA_BASE_URL_HERE",
        "OPENROUTER_API_KEY": "YOUR_OPENROUTER_API_KEY_HERE"
      }
    }
  }
}

Frequently Asked Questions

Build is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Llm Router belongs to Developer Tools using local stdio subprocess. Select Build when you need capabilities focused on developer tools and Llm Router when you require tools for developer tools.

More alternatives to Build More alternatives to Llm Router Developer Tools category hub