UnlockPDF Skill

Remove PDF password protection from any AI agent or tool.

Powered by unlockpdf.dev — 10 free unlocks/day, then $0.05 USDC per unlock via x402.

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Option 1 — Use anywhere (copy & paste)

Copy skill.md and paste it into any AI tool's system prompt or instructions. Works with Claude, ChatGPT, Cursor, or any LLM.

What it does: Gives your AI the instructions to call unlockpdf.dev automatically when you ask it to unlock a PDF.

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Option 2 — Claude Projects

1. Open Claude.ai → Create a new Project
2. Go to Project Instructions
3. Copy and paste the contents of claude-project.md
4. Done — Claude will now automatically use unlockpdf.dev whenever you mention PDF passwords in that project

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Option 3 — Remote MCP Server ⚡ (easiest — no install)

Connect directly to our hosted MCP server. No download, no setup.

Add to Claude Desktop

Edit your Claude Desktop config file:

Mac: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "unlockpdf": {
      "type": "sse",
      "url": "https://unlockpdf.dev/mcp"
    }
  }
}

Restart Claude Desktop. You'll see "unlockpdf" in the tools panel instantly.

Use it

Just tell Claude:

• "Unlock this PDF, password is abc123"
• "Remove the password from my PDF"
• "How many free unlocks do I have left today?"

Claude will call the MCP tools automatically.

Local MCP Server (alternative)

If you prefer to run it locally instead:

cd mcp-server
npm install

Then use this config instead:

{
  "mcpServers": {
    "unlockpdf": {
      "command": "node",
      "args": ["/absolute/path/to/unlockpdf-skill/mcp-server/index.js"]
    }
  }
}

Available tools

Tool	Description
check_usage	Check remaining free unlocks and payment info
unlock_pdf	Remove password from a PDF file

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Pricing

Tier	Price
Free	10 unlocks/day
Pay per use	$0.05 USDC on Base via x402

No signup. No subscription. No API keys.

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Links

• unlockpdf.dev — the tool
• API docs
• Pricing
• OpenAPI schema
• llms.txt