pdfops-mcp

MCP server that gives AI agents deterministic PDF tools, backed by the PDFops API: inspect AcroForm fields, fill forms, merge PDFs, and generate invoices — no Chromium, no native deps, nothing to host.

Tools operate on local file paths, so PDF bytes never transit the model context: your agent says "fill /tmp/form.pdf and save to /tmp/out.pdf" and gets a one-line confirmation back.

Install

Claude Code

claude mcp add pdfops -- npx -y pdfops-mcp

Claude Desktop (claude_desktop_config.json) / Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "pdfops": {
      "command": "npx",
      "args": ["-y", "pdfops-mcp"],
      "env": { "PDFOPS_API_KEY": "pdfops_live_…" }
    }
  }
}

PDFOPS_API_KEY is optional — without it you get the keyless trial (100 requests/IP/month). A free key (250/month, no card) takes one field at pdfops.dev/pricing.

Tools

Tool	What it does
pdf_inspect	List a PDF's form fields (names, types, options, values) + a paste-ready fill template. Call first on unfamiliar PDFs.
pdf_fill	Fill AcroForm fields → write the filled PDF.
pdf_merge	Merge ≥2 PDFs in order → write the result.
pdf_invoice	Structured data → complete invoice PDF. Deterministic: same input, byte-identical output.
pdfops_usage	Quota check for the configured key.

Example agent flow

"Fill the W-9 template at ~/docs/w9.pdf for Ada Lovelace and merge it with ~/docs/cover.pdf"

1. pdf_inspect → discovers field names + fill template
2. pdf_fill → writes the filled W-9
3. pdf_merge → writes the combined packet

Links

API docs: pdfops.dev/docs · OpenAPI: pdfops.dev/openapi.json · Typed client: pdfops-sdk · Questions: hello@pdfops.dev

MIT © PDFops