mcpbeat

Mermaid MCP App MCP Server

io.github.finfin/mermaid-mcp-app
local only

Mermaid MCP App runs on your own machine — the client starts it, so there is no endpoint to ping. 41 installs a week from npm. Last commit 25 Mar 2026.

MCP App that renders Mermaid diagrams as interactive UI in Claude, VS Code and other MCP clients

Installs per day peak 48 · avg 10 · -56% w/w
a month agotoday
41
Installs / week
npm · mermaid-mcp-app
1
Stars
0 open issues
25 Mar 2026
Last commit
0 releases in 90 days
—
License
TypeScript

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add mermaid-mcp-app -- npx -y mermaid-mcp-app
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mermaid-mcp-app": {
      "args": [
        "-y",
        "mermaid-mcp-app"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mermaid-mcp-app]
command = "npx"
args = ["-y", "mermaid-mcp-app"]
.cursor/mcp.json
{
  "mcpServers": {
    "mermaid-mcp-app": {
      "args": [
        "-y",
        "mermaid-mcp-app"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mermaid-mcp-app": {
      "args": [
        "-y",
        "mermaid-mcp-app"
      ],
      "command": "npx"
    }
  }
}

Mermaid MCP App — questions

Answers built from our own checks of this server.

Why is there no uptime for Mermaid MCP App?
Mermaid MCP App runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package mermaid-mcp-app was installed 41 times last week.
How do I connect Mermaid MCP App?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls mermaid-mcp-app straight from npm; nothing to host, nothing to sign up for.
How many people use Mermaid MCP App?
The npm package mermaid-mcp-app was installed 41 times in the last week. Week over week that is -56%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Mermaid MCP App open source?
Yes — written in TypeScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.