LocalFree server, account needed

Mermaid MCP server

GittyBurstein/mermaid-mcp-server

Turn local projects or GitHub repositories into Mermaid diagrams rendered via Kroki.

15 GitHub stars3 forks

Install Mermaid in Claude Code

This server doesn't publish a package to a registry, so follow the install steps in its README. Once it runs, register it with Claude Code:

Claude Code
claude mcp add mermaid -- <command to start the server>

Frequently asked questions

What does the Mermaid MCP server do?

Turn local projects or GitHub repositories into Mermaid diagrams rendered via Kroki.

Is the Mermaid MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Mermaid run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Mermaid to Claude Code?

Follow the install steps in the project's README at https://github.com/GittyBurstein/mermaid-mcp-server, then register it with "claude mcp add".

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