Diagram Bridge MCP Server

@tohachan

代码仓库

基本信息

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开发工具

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stdio

作者

tohachan

提交者

tohachan

关于 Diagram Bridge MCP Server

A comprehensive MCP server that bridges the gap between LLMs and diagram creation through three powerful, independent tools: intelligent format selection, format-specific instruction generation, and professional diagram rendering (using kroki server). Each tool can be used standa

#diagram#kroki

Diagram Bridge 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": {
    "diagram-bridge-mcp": {
      "command": "node",
      "args": [
        "/path/to/diagram-bridge-mcp/dist/index.js"
      ],
      "enabled": true
    }
  }
}

Diagram Bridge MCP Server 工具

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工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is Diagram Bridge Mcp?

Diagram Bridge Mcp is an MCP server that bridges LLMs and diagram creation through three independent tools: intelligent format selection (help_choose_diagram), format-specific instruction generation (get_diagram_instructions), and professional diagram rendering via a local Kroki service. It supports formats including Mermaid, PlantUML, C4 Model, D2, GraphViz, BPMN, Structurizr, Excalidraw, and Vega-Lite. Designed for developers using MCP clients (e.g., Cursor) who need LLMs to produce diagrams without manual format or rendering decisions.

How to use Diagram Bridge Mcp?

Install Node.js 18+, clone the repo, run npm install && npm run build, then start services with docker-compose up --build. Configure your MCP client to point to the built dist/index.js file. The server automatically provides three tools (help_choose_diagram, get_diagram_instructions, render_diagram) that can be used standalone or in sequence.

Key features of Diagram Bridge Mcp

Tool for intelligent diagram format selection with confidence scoring
Generates format-specific coding instructions and syntax guidelines
Renders diagram code to PNG/SVG via integrated local Kroki service
Supports nine popular diagram formats out of the box
Includes caching for performance and file storage with absolute paths

Use cases of Diagram Bridge Mcp

Choosing the optimal diagram format for visualizing architecture, relationships, or workflows
Guiding LLMs to generate syntactically correct diagram code for a specific format
Rendering diagram code into professional images for documentation or reports

常见问题

What are the prerequisites for running the server?

You need Node.js 18.0 or higher and Docker with Docker Compose.

How do I configure the output storage location?

By default, rendered diagrams are saved to `{project-root}/generated-diagrams/`. Advanced configuration is described in the configuration guide.

What diagram formats are supported?

The server supports Mermaid, PlantUML, C4 Model, D2, GraphViz, BPMN, Structurizr, Excalidraw, and Vega-Lite.

Does the server require an internet connection?

No. Rendering uses a local Kroki service started via Docker Compose, so all processing happens locally.

How do I add this server to Cursor?

Add a JSON entry to your MCP client configuration with `command: "node"` and `args: ["/path/to/dist/index.js"]` as shown in the README.

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