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plantuml-mcp-js

Pure Node.js MCP server that renders and validates PlantUML diagrams with zero Java and zero external server, powered by TeaVM. Exposes render_diagram, check_syntax and diagram_explain — just run npx @plantuml/mcp-js.

Score
99.3392 signals
Evidence
13,288 stars · 1,235 forks
Last commit
as last read from GitHub; most reads are from 2 Sep 2026 or later
Listed

Install

armory install plantuml-mcp-js --cli claude

merges a server entry into.mcp.jsonListed as compatible

Configurationjson
{
  "mcpServers": {
    "plantuml-mcp-js": {
      "command": "npx",
      "args": [
        "-y",
        "@plantuml/mcp-js"
      ]
    }
  }
}

↳ Restart Claude Code to load the MCP server.

Needs the armory CLI · not on npm yet, build it from cli/ in the repository

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What it is

Pure Node.js MCP server that renders and validates PlantUML diagrams with zero Java and zero external server, powered by TeaVM. Exposes render_diagram, check_syntax and diagram_explain — just run npx @plantuml/mcp-js.

When to use it

Pure Node.js MCP server that renders and validates PlantUML diagrams with zero Java and zero external server, powered by TeaVM. Exposes render_diagram, check_syntax and diagram_explain — just run npx @plantuml/mcp-js.

How to install / invoke

See Glama for the install config.

Notes

Listed from the Glama MCP registry.