Pdf Merge MCP tool

MCP findutils:pdf_merge

Combine several PDFs into one, in the order given. Each input is a base64-encoded PDF and the result is a base64-encoded PDF. Pages are copied as they are — nothing is re-rendered, re-encoded or watermarked. An encrypted PDF must be unlocked first.

Needs an API key. Running a tool needs an API key. Keys are not for sale yet: ask for early access. About API keys

Open the tool Try it

Arguments

application/json

pdfs

array required

Base64-encoded PDFs, in the order they should appear. At least two.

Example arguments

Verified

{
  "pdfs": [
    "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",
    "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"
  ]
}

claude mcp add findutils --transport http https://mcp.findutils.com/ --header "Authorization: Bearer YOUR_API_KEY"

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

curl -X POST https://mcp.findutils.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "pdf_merge",
      "arguments": {
        "pdfs": [
          "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",
          "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"
        ]
      }
    }
  }'

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/pdf-merge/execute.

REST reference

Rate limit: 120 a minute, per IP
Auth: API key
REST id: pdf-merge
MCP name: pdf_merge
Category: Documents
Machine-readable: openapi.json · markdown.md

Arguments

Example arguments

More Documents tools

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