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Tech.unravel/MCP Mermaidjs Server

@unravel-team

基本情報

カテゴリ

その他

ライセンス

MIT license

トランスポート

stdio

作者

unravel-team

Tech.unravel/MCP Mermaidjs Server について

An MCP server for working with MermaidJS, using `mmdc`.

Tech.unravel/MCP Mermaidjs Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "mcp-mermaidjs-server": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "java",
        "-Dclojure.tools.logging.factory=clojure.tools.logging.impl/log4j2-factory",
        "-Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.Slf4jLog",
        "-Dlog4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector",
        "-Dlog4j2.configurationFile=log4j2-mcp.xml",
        "-Dbabashka.json.provider=metosin/jsonista",
        "-Dlogging.level=INFO",
        "-Dmcp.vegalite.mmdc_executable=/Users/vedang/.local/share/nvm/v23.11.0/bin/mmdc",
        "-cp",
        "/Users/vedang/repo-name/target/tech.unravel/mcp-mermaidjs-server-1.0.0.jar",
        "tech.unravel.mcp-mermaidjs-server"
      ]
    }
  }
}

Tech.unravel/MCP Mermaidjs Server のツール

ツール一覧はまだありません

この掲載には表示できるツール一覧がまだありません。サーバーにツールがないという意味ではありません。対応機能はプロジェクトのドキュメントをご確認ください。

上のボタンで一時的なサンドボックスでこのサーバーを実行し、ツール一覧を取得できます。

概要

What is tech.unravel/mcp-mermaidjs-server?

An MCP server for working with MermaidJS diagrams, using the mmdc CLI tool. It provides two tools—save-diagram and visualize-diagram—so an AI host can create a Mermaid spec, save it, then render it to a specific output format with optional custom CSS. It is built in Clojure and packaged as an uberjar.

How to use tech.unravel/mcp-mermaidjs-server?

Pre‑requisite: the mmdc CLI must be installed. Build the uberjar with make clean && make build, then configure the server in Claude Desktop or MCP Inspector using the provided JSON with the full path to the JAR and the mmdc executable.

Key features of tech.unravel/mcp-mermaidjs-server

  • Provides two tools: save-diagram and visualize-diagram
  • Renders Mermaid specs via mmdc CLI
  • Supports custom output format and optional CSS
  • Built with Clojure, runs as a Java process
  • Integrates with Claude Desktop and MCP Inspector

Use cases of tech.unravel/mcp-mermaidjs-server

  • Create and save a MermaidJS sequence diagram from a textual spec
  • Render a saved spec to a specific image format with optional styling
  • Automate diagram generation within an AI‑assisted workflow

よくある質問

1

What does the server do?

It is an MCP server that wraps `mmdc` to let an AI host create, save, and render MermaidJS diagrams.

2

What are the prerequisites?

The `mmdc` CLI must be installed on the system before running the server.

3

How do I install the server?

Build the uberjar by running `make clean && make build`, then configure the full path to the JAR and to `mmdc` in your MCP client.

4

What output formats are supported?

The server delegates rendering to `mmdc`, which supports multiple output formats such as PNG, SVG, and PDF (the exact list depends on the `mmdc` installation and configuration).

5

Where are diagrams stored?

Diagrams are saved as `.mmd` files on the local filesystem; the save-diagram tool writes the spec to disk, and visualize-diagram reads that file to render it.

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