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The MCP Server

@vtomilin

基本信息

分类

其他

许可证

MIT license

传输方式

stdio

作者

vtomilin

关于 The MCP Server

MCP server to efficiently check all Mermaid diagram types for syntax errors

The MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "mermaider": {
      "command": "npx",
      "args": [
        "-y",
        "@vtomilin/mermaider",
        "<config>"
      ]
    }
  }
}

The MCP Server 工具

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点击上方按钮,在临时沙箱中运行此服务器并实时获取工具列表。

概览

What is mermaider?

mermaider is an MCP server that provides a single validate_syntax tool to check all Mermaid diagram types for syntax errors. It uses puppeteer-core and an already installed Chrome-based or Firefox browser to run the official Mermaid.js API in a headless page. It is built for developers and LLMs that generate Mermaid diagrams and need fast, reliable syntax validation.

How to use mermaider?

Install and configure your MCP client to run npx -y @vtomilin/mermaider <config>, where <config> is either an inline JSON string or a path to a JSON configuration file containing the browser’s executablePath (and optionally "browser": "firefox"). The server opens a headless browser once and reuses it for all subsequent tool calls, keeping latency low. Examples are provided for VSCode, Cursor/Windsurf, and Bun (via global installation).

Key features of mermaider

  • Single validate_syntax tool for all Mermaid diagram types
  • Reuses a persistent headless browser instance for low latency
  • Uses puppeteer-core – no automatic browser download
  • Faster and more deterministic than mmdc-based validators
  • Supports Chrome-based and Firefox browsers

Use cases of mermaider

  • Validating

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