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PopNx MCPMCP servers for people who use AI · explained in plain words

Formfeed

by formfeed-devversion 0.3.23i★ –iComputer or cloud
Registry nameio.github.formfeed-dev/formfeed

Install

Overview

Description from the maker (original English)

Render PDFs and images from templates, validate data and convert Office files to PDF.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Computer or cloud
  • Transport: stdio, Streamable HTTP
  • Category: Docs, sheets & office work
  • You need to fill in: FORMFEED_API_KEY, Authorization

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: FORMFEED_API_KEY, FORMFEED_REGION, Authorization

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "formfeed": {
      "command": "npx",
      "args": [
        "-y",
        "@formfeed/mcp"
      ],
      "env": {
        "FORMFEED_API_KEY": "your-value",
        "FORMFEED_REGION": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http formfeed https://mcp.formfeed.dev/mcp --header 'Authorization: your-value'

Or run it on your computer

claude mcp add formfeed --env FORMFEED_API_KEY=your-value --env FORMFEED_REGION=your-value -- npx -y @formfeed/mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "formfeed": {
      "url": "https://mcp.formfeed.dev/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "formfeed": {
      "command": "npx",
      "args": [
        "-y",
        "@formfeed/mcp"
      ],
      "env": {
        "FORMFEED_API_KEY": "your-value",
        "FORMFEED_REGION": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "formfeed": {
      "type": "http",
      "url": "https://mcp.formfeed.dev/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "formfeed": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@formfeed/mcp"
      ],
      "env": {
        "FORMFEED_API_KEY": "your-value",
        "FORMFEED_REGION": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • FORMFEED_API_KEY secret env
    Formfeed API key: ff_test_… renders for free (with a test mark on the Free plan), ff_live_… consumes units. Without one, only validate_template with html and check_invoice work
  • FORMFEED_REGION env
    API region of the workspace
  • Authorization secret HTTP header
    Bearer followed by a Formfeed API key (ff_test_… or ff_live_…); without it the client signs in with your Formfeed account (OAuth) and you choose the workspace

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account formfeed-dev, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    The address needs your own account values, so we cannot check it for you

  • – Not applicable

    Sign-in with OAuth

    The address needs your own account values, so we cannot check it for you

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Docs, sheets & office worki

  • More stars than 0% of the other 2167 servers in this category
  • Published to the registry more recently than 84% of the other 2167 servers in this category
  • Basic checks equal to or better than 100% of the other 2167 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Formfeed safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: FORMFEED_API_KEY, Authorization

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.3.23) reached the registry 4 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

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Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@formfeed/mcp

Model Context Protocol server for Formfeed. Gives Claude, Cursor and other agents ten tools: list_templates, get_template_schema, validate_template (free: the data against the template's schema, ad-hoc HTML offline), check_invoice (free and offline: the _invoice block of a ZUGFeRD / Factur-X e-invoice against EN 16931), render (with einvoice, the PDF becomes that e-invoice; an image comes back as a picture the agent can look at), convert_to_pdf (Word, Excel, PowerPoint and OpenDocument to PDF), get_render, get_workspace (which workspace the server works in, and the units left), get_template_source and save_template (a new template or a change as a draft, which a person publishes in Formfeed; needs template:write on the key, or the person's permission for a signed-in agent).

stdio (Claude Desktop, Cursor, Claude Code)

{

"mcpServers": { "formfeed": { "command": "npx", "args": ["-y", "@formfeed/mcp"], "env": { "FORMFEED_API_KEY": "ff_test_…" } } } }

A test key renders for free (on the Free plan with a test mark); a live key consumes units. Without FORMFEED_API_KEY the server starts too, with the offline checks only: validate_template with html and engine, and check_invoice. FORMFEED_REGION=us or FORMFEED_BASE_URL select another API host.

Hosted (Streamable HTTP)

https://mcp.formfeed.dev/mcp takes Authorization: Bearer ff_…, or signs in with your Formfeed account when no key is sent (OAuth; the client opens the browser, and you choose the workspace the agent works in). https://mcp.formfeed.dev/mcp/ pins another workspace for a signed-in client. Self-host the same endpoint with formfeed-mcp --http --port 8790, plus --auth-server for OAuth sign-in against your own Supabase Auth.

Claude Code installs the hosted server together with two skills for writing and checking templates as Formfeed's plugin, from formfeed-dev/skills: https://docs.formfeed.dev/devkit/coding-agents

Documentation: https://docs.formfeed.dev/integrations/mcp

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