What is MCP Mermaid?
MCP Mermaid is an MCP server that dynamically generates Mermaid diagrams and charts using AI. It fully supports all Mermaid features and allows configuration of background color and theme. It is designed for developers and AI agents who need to create diagrams programmatically or interactively.
How to use MCP Mermaid?
The server can be run directly via npx (e.g., npx -y mcp-mermaid) or installed globally (npm install -g mcp-mermaid) and launched with CLI options. It supports multiple transports: STDIO (default), SSE (e.g., mcp-mermaid -t sse), and Streamable HTTP (e.g., mcp-mermaid -t streamable). To integrate with desktop MCP clients (Claude, VSCode, Cline, Cherry Studio), add the server configuration with the appropriate command and args for your operating system.
Key features of MCP Mermaid
- Full support for all Mermaid syntax and features.
- Configurable
backgroundColor and theme for styled output.
- Exports diagrams as
base64, svg, mermaid code, file, svg_url, and png_url.
- Built-in Mermaid validation to help the model produce correct syntax.
- Multiple transport protocols: STDIO, SSE, and Streamable HTTP.
Use cases of MCP Mermaid
- Generate flowcharts, sequence diagrams, and other Mermaid charts via AI prompts.
- Automatically save diagrams as PNG files for AI agents using
outputType: "file".
- Share diagrams through public mermaid.ink links using
svg_url or png_url modes.
- Enable multi-round AI interaction to refine diagram syntax and visuals.
Comments