Pdfmux vs Crw

In-depth architectural comparison of the Pdfmux and Crw 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?

Choose Pdfmux when:

• You need dedicated capabilities in the Search & Data Extraction domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Per-page backend routing, Confidence scoring and re-extraction, OCR, table, layout, and LLM backends.

Explore Pdfmux Details

Choose Crw when:

• You need dedicated capabilities in the Search & Data Extraction domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: OAuth 2.0 (Freemium).
• You have access to required keys: CRW_API_KEY.
• Primary tools included: crw_scrape, crw_crawl, crw_check_crawl_status.

Explore Crw Details

Feature & Specification Comparison

Specification	Pdfmux NameetP Search & Data Extraction	Crw us Search & Data Extraction
Summary	PDF extraction router with built-in MCP server. Classifies each page (digital, scanned, tables) and routes to the best backend (PyMuPDF, Docling, OCR, or optional LLM fallback). Per-page confidence scoring flags low-quality pages and auto-reextracts them — prevents silent RAG failures. Zero config: pip install pdfmux. MIT licensed.	fastCRW — open-source (AGPL-3.0), self-hostable Rust web crawler & search API for AI agents. Tools: scrape, crawl, map, and SearXNG-backed search. Single 6MB static binary; reproducible 1K-URL benchmarks faster than hosted alternatives. Hosted MCP at fastcrw.com/mcp (Streamable HTTP, OAuth) or self-host.
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": {
    "nameetp-pdfmux": {
      "command": "npx",
      "args": [
        "-y",
        "pdfmux-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "us-crw": {
      "command": "npx",
      "args": [
        "-y",
        "crw-mcp@latest"
      ],
      "env": {
        "CRW_API_KEY": "YOUR_CRW_API_KEY_HERE"
      }
    }
  }
}

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