This server validates Mermaid diagram syntax and provides grammar checking via the Model Context Protocol (MCP).

• Validate Mermaid diagrams: Submit any text to check whether it constitutes valid Mermaid diagram syntax.

• Receive validation feedback: Returns an empty string if valid, or a descriptive error message explaining any syntax issues.

• Integrate with MCP clients: Works with any MCP-compatible client (e.g., Cursor) via stdio or SSE transport.

• Run as HTTP service: Optionally start with --http --port=4000 for SSE-based communication.

• Easy to install: Available as an npm package (@bjmhe/mermaid-grammer-inspector-mcp), runnable via npx or installed globally.

Provides comprehensive grammar checking and syntax validation capabilities for Mermaid diagram code

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Mermaid Grammar Inspector check if this flowchart syntax is correct: graph TD; A-->B; B-->C"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.