Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
MCP server for GroupDocs.Conversion — convert, inspect, and list supported formats via AI agents.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
GROUPDOCS_MCP_STORAGE_PATH, GROUPDOCS_MCP_OUTPUT_PATH, GROUPDOCS_LICENSE_PATH, GROUPDOCS_METERED_PUBLIC_KEY, GROUPDOCS_METERED_PRIVATE_KEYWhich app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"groupdocs-conversion": {
"command": "dnx",
"args": [
"GroupDocs.Conversion.Mcp",
"--yes"
],
"env": {
"GROUPDOCS_MCP_STORAGE_PATH": "your-value",
"GROUPDOCS_MCP_OUTPUT_PATH": "your-value",
"GROUPDOCS_LICENSE_PATH": "your-value",
"GROUPDOCS_METERED_PUBLIC_KEY": "your-value",
"GROUPDOCS_METERED_PRIVATE_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add groupdocs-conversion --env GROUPDOCS_MCP_STORAGE_PATH=your-value --env GROUPDOCS_MCP_OUTPUT_PATH=your-value --env GROUPDOCS_LICENSE_PATH=your-value --env GROUPDOCS_METERED_PUBLIC_KEY=your-value --env GROUPDOCS_METERED_PRIVATE_KEY=your-value -- dnx GroupDocs.Conversion.Mcp --yesFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"groupdocs-conversion": {
"command": "dnx",
"args": [
"GroupDocs.Conversion.Mcp",
"--yes"
],
"env": {
"GROUPDOCS_MCP_STORAGE_PATH": "your-value",
"GROUPDOCS_MCP_OUTPUT_PATH": "your-value",
"GROUPDOCS_LICENSE_PATH": "your-value",
"GROUPDOCS_METERED_PUBLIC_KEY": "your-value",
"GROUPDOCS_METERED_PRIVATE_KEY": "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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"groupdocs-conversion": {
"type": "stdio",
"command": "dnx",
"args": [
"GroupDocs.Conversion.Mcp",
"--yes"
],
"env": {
"GROUPDOCS_MCP_STORAGE_PATH": "your-value",
"GROUPDOCS_MCP_OUTPUT_PATH": "your-value",
"GROUPDOCS_LICENSE_PATH": "your-value",
"GROUPDOCS_METERED_PUBLIC_KEY": "your-value",
"GROUPDOCS_METERED_PRIVATE_KEY": "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 one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
GROUPDOCS_MCP_STORAGE_PATH envGROUPDOCS_MCP_OUTPUT_PATH envGROUPDOCS_LICENSE_PATH envGROUPDOCS_METERED_PUBLIC_KEY envGROUPDOCS_METERED_PRIVATE_KEY envThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
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
The registry name was verified with the GitHub account groupdocs-conversion, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
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.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
The GitHub repo last changed –, and the latest version (26.9.0) reached the registry 2 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need .NET on your computer.
In the same category: Spec Driven Development, Remote Desktop Commander, AI Deprecations
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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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.
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.
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 @ :
dnx GroupDocs.Conversion.Mcp@26.9.0 --yes
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"toenv—
omit it to run in evaluation mode.
claude mcp add groupdocs-conversion -- dnx GroupDocs.Conversion.Mcp --yes
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.
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.
install/generated/claude-desktop.json into ~/.cursor/mcp.json.install/generated/windsurf.md.install/generated/cline.json into Cline's MCP settings.install/generated/rider.md.codex mcp add groupdocs-conversion -- dnx GroupDocs.Conversion.Mcp --yes, details in install/generated/codex.md.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. :26.9.0).
dotnet tool install -g GroupDocs.Conversion.Mcp
groupdocs-conversion-mcp
Version pinning: in any snippet above, replace
"GroupDocs.Conversion.Mcp"with
"GroupDocs.Conversion.Mcp@26.9.0"to lock to a specific release. Pinning is recommended
for shared / committed configs to avoid surprise upgrades.
| Tool | Description |
|---|---|
Convert | Converts a document to a different format (PDF, DOCX, XLSX, PPTX, HTML, PNG, JPG, and 70+ more) and saves the result to storage |
GetSupportedFormats | Lists every target format the source document can be converted to, with primary/secondary indicators |
GetDocumentInfo | Returns file type, page count, and basic properties (author, title, dates, password-protected) for a source document |
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:
There are two ways to license the server.
License file — point GROUPDOCS_LICENSE_PATH at your GroupDocs.Total.lic. Works offline.
Metered (pay-per-use) — set both GROUPDOCS_METERED_PUBLIC_KEY and GROUPDOCS_METERED_PRIVATE_KEY. You are billed for what you actually process, which suits AI agents well because their usage is bursty and hard to predict up front. If both a metered key pair and a license file are configured, metered wins and the file is ignored.
Metered mode needs outbound connectivity. Usage is reported to GroupDocs servers, so
air-gapped or firewalled deployments must allow that egress — or use a license file instead.
Call the `get_license_status` tool at any time to see which mode is active, and — under metered — the consumed quantity and remaining credit.
The metered private key is a secret. MCP client configs are plain files on disk, and a project-scoped .mcp.json is committed by convention, so prefer, in order:
launchctl setenv, or launch the client from a terminal.${VAR}; VS Code uses ${env:VAR} and ${input:...}).~/.claude.json) is acceptable for a single developer..mcp.json.For Docker, forward the values without writing them into any file:
docker run --rm -i \
-e GROUPDOCS_METERED_PUBLIC_KEY -e GROUPDOCS_METERED_PRIVATE_KEY \ -v /path/to/documents:/data \ ghcr.io/groupdocs-conversion/conversion-net-mcp:latest
To lift the limits with a license file: commented example in each install snippet above):
| Variable | Description | Default |
|---|---|---|
GROUPDOCS_MCP_STORAGE_PATH | Base folder for input and output files | current directory |
GROUPDOCS_MCP_OUTPUT_PATH | *(Optional)* separate folder for output files | GROUPDOCS_MCP_STORAGE_PATH |
GROUPDOCS_LICENSE_PATH | Path to GroupDocs license file | (evaluation mode) |
GROUPDOCS_METERED_PUBLIC_KEY | Metered public key. Requires the private key too; takes precedence over the license file | (unset) |
GROUPDOCS_METERED_PRIVATE_KEY | Metered private key. Secret - see Licensing | (unset) |
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:
| Platform | Setup |
|---|---|
| Windows | Nothing — GDI+ is built into the OS. |
| Linux | sudo apt-get install -y libgdiplus libfontconfig1 ttf-mscorefonts-installer |
| macOS | brew install mono-libgdiplus |
| Docker | Nothing — the image already bundles libgdiplus. |
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.
cd docker
docker compose up
Edit docker/docker-compose.yml to point volumes at your local documents folder.
Step-by-step deployment guides and a published-package integration test suite live in the companion repo GroupDocs.Conversion.Mcp.Tests:
dnx, global tool, pinned vs always-latestOnly the beginning is shown; read the rest in the repo