J

JustFill

Verified Integration
Author: @mrmaciej1Category: ServerApplication
JSON-RPC 2.0
Protocol Standard
Sub-second
Execution Latency
Active
Operational Status

Client Configuration

— Connect JustFill to Claude Desktop or Cursor in seconds
{
  "mcpServers": {
    "justfill": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-justfill"
      ],
      "env": {}
    }
  }
}
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).
Architecture & Capabilities

System Overview

Automate the detection, review, and filling of PDF forms using AI agents.

Indexed Date

7/23/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for JustFill

JustFill is a software tool that allows AI agents (like Claude, ChatGPT, n8n) to automatically detect, review, and fill PDF form fields. It uses AI, machine learning, and saved templates to automate data entry into various PDF forms, including scanned documents.

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