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How to install Mermaid Validator MCP in Claude Code

To install Mermaid Validator MCP in Claude Code, run "claude mcp add mermaid-validator-mcp -- npx -y mermaid-validator-mcp" in your terminal, then check it with "claude mcp list". It takes about a minute.

Built from the published package · server updated 7 months ago

  1. 1

    Run the install command

    Open a terminal in your project and run:

    claude mcp add mermaid-validator-mcp -- npx -y mermaid-validator-mcp
  2. 2

    Choose where it applies (optional)

    Add --scope user to use it in every project, or --scope project to share it with your team through a .mcp.json file.

    claude mcp add --scope user mermaid-validator-mcp -- npx -y mermaid-validator-mcp
  3. 3

    Check that it is connected

    List your servers, or type /mcp inside a Claude Code session to see its status and tools.

    claude mcp list

MCP servers run with your permissions. If Mermaid Validator MCP needs an API key, add it under env in the config. Check its README.

Install Mermaid Validator MCP in another app

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Questions

Does Mermaid Validator MCP work in Claude Code?

Yes. Claude Code supports mcp servers (local and remote), skills and plugins, and Mermaid Validator MCP installs with the steps above.

Mermaid Validator MCP does not show up in Claude Code. What now?

Restart Claude Code fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Mermaid Validator MCP safe?

It scores 36 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.