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PDFops MCP server

Which servers in the official MCP registry are PDFops's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-26

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Whose server it is
  • Registry namedev.pdfops/pdfops-mcpverified in the MCP registry

The registry name sits under pdfops.dev. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-26
  • Stateanswerschecked 2026-10-26
  • Tools5
  • Server calls itselfpdfops
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 2499 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: fill PDF form fields from JSON data; merge several PDFs into one file; generate invoice PDFs from JSON input.
  • Checked on 1 of the 7 days it takes to judge reliability.

Once connected

  • For "fill PDF form fields from JSON data", the likely first call is pdf_inspect.
  • For "merge several PDFs into one file", the likely first call is pdf_merge.
  • For "generate invoice PDFs from JSON input", the likely first call is pdf_invoice.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 1, the first on 2026-10-26
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
  • What an agent can do with it3 of 3 use cases
  • Use38 npm downloads a week
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer2533 ms
  • Space in an agent's context≈ 1,228 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results5 of 5 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · fill PDF form fields from JSON data
  • can do · merge several PDFs into one file
  • can do · generate invoice PDFs from JSON input

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers5 tools · read 2026-10-26
  • pdf_inspect

    List a PDF's AcroForm form fields — names, types, options, current values, per-field maxLength where declared — plus a paste-ready fillTemplate object for pdf_fill and a hasXFA flag (hybrid AcroForm/XFA inputs lose their XFA layer when…

  • pdf_fill

    Fill AcroForm form fields in a PDF and return the result. Field names must exist in the PDF (use pdf_inspect first). All values are strings; checkboxes take "true"/"false"; dropdown/radio/optionlist values must be one of the field's…

  • pdf_merge

    Merge two or more PDFs into one, in the order given, and return the result. Sources are read only and never modified. Returns the merged PDF inline as an application/pdf resource. This tool only concatenates whole documents: it does not…

  • pdf_invoice

    Generate a complete, professionally laid-out invoice PDF from structured data — no template needed. Deterministic: the same input produces byte-identical output (safe to re-run). Note: without a paid PDFops key the output carries a small…

  • pdfops_usage

    Check the current PDFops API quota for the configured key: tier, limit, used, remaining, the billing period, and the reset timestamp. Read-only and safe to call before a batch to confirm there is headroom. Uses the API key this connection…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "pdfops-mcp": {
      "type": "http",
      "url": "https://pdfops.dev/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http pdfops https://pdfops.dev/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://pdfops.dev/api/mcp as a custom connector in the settings.

Also shipped through: npm

OpenAPI spec

7 paths, read 2026-10-26. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.