GroupDocs.Conversion MCP Server

Convert PDF, Word, Excel, PowerPoint, HTML, images, and 70+ document formats from Claude, Cursor, GitHub Copilot, and any other MCP agent — locally, your files never leave your machine.

Install in 60 seconds

One-click installs pre-fill every supported setting: edit the placeholder documents folder after install (output defaults to the same folder); an empty GROUPDOCS_LICENSE_PATH runs in evaluation mode - point it at your license to lift limits.

More clients - ready-made configs for Claude Code, Codex CLI, Visual Studio 2022, Cursor, Windsurf, Cline, and JetBrains Rider live in install/generated/.

Requires the .NET 10 SDK for native runs — or skip straight to Docker.

Run directly with dnx (recommended — no install step):

dnx GroupDocs.Conversion.Mcp --yes

Pulls the latest stable release on every invocation. To pin to a specific version (recommended for shared configs and CI), append @<version>:

dnx GroupDocs.Conversion.Mcp@26.7.2 --yes

Claude Desktop

Add to claude_desktop_config.json:

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

To use a license, add "GROUPDOCS_LICENSE_PATH": "/path/to/GroupDocs.Total.lic" to env — omit it to run in evaluation mode.

Claude Code

claude mcp add groupdocs-conversion -- dnx GroupDocs.Conversion.Mcp --yes

VS Code / GitHub Copilot

Use the Install in VS Code button above, or copy the ready-made snippet from the NuGet package page into .vscode/mcp.json, or take install/generated/vscode-mcp.json from this repo.

Visual Studio 2022 (17.14+)

Create .mcp.json in your solution root with the contents of install/generated/vs2022-mcp.json — same shape as VS Code's. This is the native path for .NET teams already in Visual Studio.

Cursor · Windsurf · Cline · Rider · Codex

• Cursor — use the Add to Cursor button above, or paste install/generated/claude-desktop.json into ~/.cursor/mcp.json.

• Windsurf — follow install/generated/windsurf.md.

• Cline — paste install/generated/cline.json into Cline's MCP settings.

• JetBrains Rider — follow install/generated/rider.md.

• Codex CLI — codex mcp add groupdocs-conversion -- dnx GroupDocs.Conversion.Mcp --yes, details in install/generated/codex.md.

Docker

docker run --rm -i \
  -v $(pwd)/documents:/data \
  ghcr.io/groupdocs-conversion/conversion-net-mcp:latest

Images are published to both GHCR (ghcr.io/groupdocs-conversion/conversion-net-mcp) and Docker Hub (groupdocs/conversion-net-mcp) for linux/amd64 + linux/arm64, tagged latest plus an immutable version tag matching each NuGet release (e.g. :26.7.2).

Global dotnet tool

dotnet tool install -g GroupDocs.Conversion.Mcp
groupdocs-conversion-mcp

Version pinning: in any snippet above, replace "GroupDocs.Conversion.Mcp" with "GroupDocs.Conversion.Mcp@26.7.2" to lock to a specific release. Pinning is recommended for shared / committed configs to avoid surprise upgrades.

Related MCP server: ChangeThisFile MCP Server

Available MCP Tools

Licensing

The MCP server itself is MIT; the underlying GroupDocs.Conversion engine requires a license for production use. Without one the server runs in evaluation mode:

• Converted output carries an evaluation watermark, and tool responses include an evaluation-mode notice.

• A single server process can open at most 15 documents; further calls fail with "Could not open more than 15 document files in evaluation mode" until the server restarts.

To lift the limits, point GROUPDOCS_LICENSE_PATH at your GroupDocs.Total.lic (see the commented example in each install snippet above):

• Get a free 30-day temporary license

• Purchase a license · Product page

Configuration

Native prerequisites

The underlying GroupDocs engine uses System.Drawing (GDI+) for some operations. When you run the server natively (via dnx or the global dotnet tool) on Linux or macOS, install the native libgdiplus library first:

Skipping this on Linux/macOS surfaces as DllNotFoundException: libgdiplus in the tool response. The simplest zero-setup option on Linux/macOS is the Docker image.

Usage with Docker Compose

cd docker
docker compose up

Edit docker/docker-compose.yml to point volumes at your local documents folder.

Documentation & guides

Step-by-step deployment guides and a published-package integration test suite live in the companion repo GroupDocs.Conversion.Mcp.Tests:

• Install from NuGet — dnx, global tool, pinned vs always-latest

• Run via Docker

• Verify on the MCP registry

• Use with Claude Desktop

• Use with VS Code / GitHub Copilot

• Run the integration tests

That repo also exercises every advertised tool against the published NuGet artifact on Linux, macOS, and Windows in CI — so the snippets above are verified end-to-end on every release.

License

MIT — see LICENSE