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Comparison for AI Agents (MCP)

Document comparison for AI agents via MCP server

Ask Claude, Cursor or Copilot what changed between two versions of a document. The GroupDocs engine finds every insertion, deletion and style change on your machine and returns a marked-up copy.

NuGet Download Start Free Trial

One-click install: VS Code Cursor All clients

Version 26.9.1 released

See what’s new

{
  "mcpServers": {
    "groupdocs-comparison": {
      "command": "dnx",
      "args": ["GroupDocs.Comparison.Mcp", "--yes"],
      "env": {
        "GROUPDOCS_MCP_STORAGE_PATH": "/path/to/documents"
      }
    }
  }
}

Then ask: Compare contractA-v1.docx with contractA-v2.docx and summarize what changed

dnx GroupDocs.Comparison.Mcp --yes

GroupDocs.Comparison MCP server at a glance

An MCP server that gives AI agents the GroupDocs.Comparison engine as tools they can call

Exact diffs, explained in plain language

GroupDocs.Comparison finds every inserted, deleted and restyled passage. The agent turns that list into a summary, flags the clauses that matter and hands you a redlined file for legal or audit.

Local by design

Your AI client starts the server as a local process over stdio. It opens no ports, sends no telemetry, and reads and writes only the folder you configure, so contracts, records and internal documents never leave your machine.

Works with every MCP client

Use it from Claude Desktop, Claude Code, VS Code with GitHub Copilot, Visual Studio 2022, Cursor, Windsurf, Cline, JetBrains Rider and Codex CLI. One-click installs and ready-made configurations are available for each client.

Runs where your agent runs

GroupDocs.Comparison MCP server works on Windows, Linux and macOS, natively with .NET 10 or in Docker

One command with the .NET 10 SDK, no install step
Windows, Linux and macOS

NuGet download

Nothing to install besides Docker
linux/amd64 and linux/arm64, native dependencies bundled

Get the image

One-click install with a pre-filled configuration
Set your documents folder after install

Install in VS Code

One-click install with a pre-filled configuration
Runs in evaluation mode until you add a license

Add to Cursor

Supported file formats

GroupDocs.Comparison MCP server works with the following file formats.

Microsoft Office & OpenDocument formats

Word: DOCX, DOC, DOCM,DOT, DOTM, DOTX, RTX, RTF, TXT
Excel: XLSX, XLS, XLT, XLTM, XLSB, XLSM
PowerPoint: PPTX, PPT, POT, POTX, PPS, PPSX
Outlook: EML, EMLX, MSG
OneNote: ONE
OpenDocument: ODT, ODP, OTP, ODS, OTT
Fixed Page Layout: PDF

Images, Graphics & Diagrams

Raster images: BMP, GIF, JPG, JPEG, PNG
Medical Imaging: DICOM
Microsoft Visio: VSDX, VSD, VSS, VST, VDX
AutoCAD Drawing: DWG, DXF

Other

Text: TXT
Programming Languages: CS, Java, CPP, JS, PY, RB, PL, ASM, GROOVY, JSON, PHP, SQL, LOG, DIFF, LESS, SCALA
Web: HTM, HTML, MHT, MHTML
e-Books: MOBI, DjVu
Delimiter-Separated Values: CSV

What the MCP server can do

Compare, analyze and explain document changes without uploading a single file

Redline two versions

The compare tool produces a marked-up result document with insertions, deletions and style changes highlighted.

Changes as data

The analyze_changes tool returns every change as structured JSON, so the agent can filter, count and summarize.

Text and style changes

Detects inserted and deleted text as well as formatting changes such as bold, color and font size.

Word, PDF, Excel, PowerPoint

Compare PDF, DOCX, XLSX, PPTX, ODT, RTF, TXT, HTML and 30+ more document formats.

Contract review

Ask the agent to flag every change that touches payment terms, liability or termination.

Whole folders of versions

Compare every v1 and v2 pair in a folder and report only the files that changed.

Password-protected files

Pass a password for the source, the target or both.

Check before comparing

The get_document_info tool returns file type, page count and page sizes without running a comparison.

Flexible licensing

Start in evaluation mode, then use a license file or metered keys. The get_license_status tool shows which one is active.

What you can ask your agent

Typical GroupDocs.Comparison MCP scenarios, each with the prompt that drives it

Review contract revisions

Legal review starts with what changed. The agent lists every change, flags the clauses that carry risk and produces the marked-up version you send to counsel. Step by step: guide and blog walkthrough.

Prompt

Compare contract-v1.docx with contract-v2.docx. List every change,
and flag anything touching payment terms, liability or termination

Summarize what changed

Not every comparison needs a redline. Ask for a short summary, only the deletions, or only the changes on one page, and the agent answers from the structured diff. Step by step: guide and blog walkthrough.

Prompt

What changed between proposal-draft.docx and proposal-final.docx? Keep it short.

Batch-compare a folder of versions

Point the agent at a folder of document pairs. It compares each pair, reports which ones changed and how, and produces marked-up copies only where you ask. Step by step: guide and blog walkthrough.

Prompt

For every -v1 and -v2 pair in my documents folder, compare the two
and tell me which invoices changed and how. One line per invoice.

Run on-premise with Docker

For regulated environments, run the server inside your perimeter. Mount the documents folder and the license, and pin the image version for change control. Architecture and security model: on-premise deployment.

docker-compose.yml

services:
  groupdocs-comparison:
    image: ghcr.io/groupdocs-comparison/comparison-net-mcp:26.9.1
    volumes:
      - "/srv/documents:/data"
      - "/srv/licenses:/license:ro"
    environment:
      GROUPDOCS_MCP_STORAGE_PATH: /data
      GROUPDOCS_LICENSE_PATH: /license/GroupDocs.Total.lic
    stdin_open: true

Install in your AI client

Copy the configuration for your client, or use the one-click links at the top of the page

Register the server

Every client starts the server the same way. Set GROUPDOCS_MCP_STORAGE_PATH to the folder with your documents, then restart the client. Leave GROUPDOCS_LICENSE_PATH empty for evaluation mode. Configurations for Visual Studio 2022, Windsurf, Cline, JetBrains Rider and Codex CLI are in the installation guide.

Claude Desktop Claude Code VS Code Cursor Docker

{
  "mcpServers": {
    "groupdocs-comparison": {
      "type": "stdio",
      "command": "dnx",
      "args": ["GroupDocs.Comparison.Mcp", "--yes"],
      "env": {
        "GROUPDOCS_MCP_STORAGE_PATH": "/path/to/documents",
        "GROUPDOCS_LICENSE_PATH": ""
      }
    }
  }
}

claude mcp add groupdocs-comparison \
  -e GROUPDOCS_MCP_STORAGE_PATH=/path/to/documents \
  -- dnx GroupDocs.Comparison.Mcp --yes

{
  "servers": {
    "groupdocs-comparison": {
      "type": "stdio",
      "command": "dnx",
      "args": ["GroupDocs.Comparison.Mcp", "--yes"],
      "env": {
        "GROUPDOCS_MCP_STORAGE_PATH": "/path/to/documents",
        "GROUPDOCS_LICENSE_PATH": ""
      }
    }
  }
}

{
  "mcpServers": {
    "groupdocs-comparison": {
      "command": "dnx",
      "args": ["GroupDocs.Comparison.Mcp", "--yes"],
      "env": {
        "GROUPDOCS_MCP_STORAGE_PATH": "/path/to/documents",
        "GROUPDOCS_LICENSE_PATH": ""
      }
    }
  }
}

docker run --rm -i \
  -v /path/to/documents:/data \
  ghcr.io/groupdocs-comparison/comparison-net-mcp:latest

Document comparison for AI agents via MCP server

Compare two contract versions with an AI agent

GroupDocs.Comparison MCP server at a glance

Exact diffs, explained in plain language

Local by design

Works with every MCP client

Runs where your agent runs

NuGet package

Docker image

VS Code and GitHub Copilot

Cursor

Supported file formats

Microsoft Office & OpenDocument formats

Images, Graphics & Diagrams

Other

What the MCP server can do

What you can ask your agent

Review contract revisions

Prompt

Summarize what changed

Prompt

Batch-compare a folder of versions

Prompt

Run on-premise with Docker

docker-compose.yml

Install in your AI client

Register the server

Ready to get started?

Useful resources

Document comparison for AI agents via MCP server

Compare two contract versions with an AI agent

GroupDocs.Comparison MCP server at a glance

Exact diffs, explained in plain language

Local by design

Works with every MCP client

Runs where your agent runs

NuGet package

Docker image

VS Code and GitHub Copilot

Cursor

Supported file formats

Microsoft Office & OpenDocument formats

Images, Graphics & Diagrams

Other

What the MCP server can do

What you can ask your agent

Review contract revisions

Prompt

Summarize what changed

Prompt

Batch-compare a folder of versions

Prompt

Run on-premise with Docker

docker-compose.yml

Install in your AI client

Register the server

Ready to get started?

Useful resources

Temporary license tips