RelayPDF vs Llm Router

In-depth architectural comparison of the RelayPDF 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.

Which MCP Server Should You Choose?

R

Choose RelayPDF when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: OAuth 2.0 (Free / Open Source).

Explore RelayPDF 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.

Explore Llm Router Details

Feature & Specification Comparison

Specification	R RelayPDF Developer Tools	Llm Router ypollak2 Developer Tools
Summary	RelayPDF is one API for documents, available to coding agents over MCP. It generates PDFs from HTML, URLs, Markdown, and templates, converts Office files, images, and email, and handles merge, split, fill, protect, and optimize. Extraction returns OCR text or JSON and makes scans searchable.	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

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).

{
  "mcpServers": {
    "relaypdf": {
      "command": "npx",
      "args": [
        "-y",
        "relaypdf"
      ]
    }
  }
}

{
  "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"
      }
    }
  }
}

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