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Diagrams MCP Server

MCP server · by mohammad-emad-dev

Developer Tools npm v0.5.2

Local-first MCP server for PlantUML and Mermaid diagrams with drift detection.

View source ↗ Website ↗ More servers

Install

Run one of the commands below, then add the client config underneath.

npmnpx -y diagrams-mcp-server

Client configuration

Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.

mcpServers{
  "mcpServers": {
    "diagrams-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "diagrams-mcp-server"
      ]
    }
  }
}

About this server

Diagrams MCP Server is listed in the Developer Tools category of the MCPNav directory. It is distributed as npm and can be loaded by any client that speaks the Model Context Protocol.

Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.

Frequently asked questions

What is the Diagrams MCP Server MCP server?

Diagrams MCP Server is an MCP server by mohammad-emad-dev. Local-first MCP server for PlantUML and Mermaid diagrams with drift detection.

How do I install Diagrams MCP Server?

Install it with: npx -y diagrams-mcp-server. Then add the JSON config to your client's MCP settings and restart the client.

Is Diagrams MCP Server free to use?

The MCP server itself is free to install. The source is public on https://github.com/mohammad-emad-dev/diagrams-mcp-server. Any third-party API it calls (such as a search or maps API) may require its own key and billing.

Which clients support Diagrams MCP Server?

Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.