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Mermaid MCP Server
Verified · npm:@mseepMCP server by peng-shawn · updated · ★ 235 · 2 downloads a week
A Model Context Protocol (MCP) server that converts Mermaid diagrams to PNG images Mermaid MCP Server is published by npm:@mseep from its verified domain in the official MCP Registry.
Install Mermaid MCP Server
Built from the published package, never by AIclaude mcp add mermaid-mcp-server -- npx -y @mseep/mermaid-mcp-serverRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"mermaid-mcp-server": {
"command": "npx",
"args": [
"-y",
"@mseep/mermaid-mcp-server"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"mermaid-mcp-server": {
"command": "npx",
"args": [
"-y",
"@mseep/mermaid-mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"mermaid-mcp-server": {
"command": "npx",
"args": [
"-y",
"@mseep/mermaid-mcp-server"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add mermaid-mcp-server -- npx -y @mseep/mermaid-mcp-server{
"mcpServers": {
"mermaid-mcp-server": {
"command": "npx",
"args": [
"-y",
"@mseep/mermaid-mcp-server"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add mermaid-mcp-server npx -y @mseep/mermaid-mcp-serverGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the mermaid-mcp-server block.
Last commit 489 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 235 stars, original repository
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Mermaid MCP Server: common questions
How do I install Mermaid MCP Server?
In Claude Code run claude mcp add mermaid-mcp-server -- npx -y @mseep/mermaid-mcp-server. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Mermaid MCP Server the official server?
Mermaid MCP Server is published by npm:@mseep from its verified domain in the official MCP Registry.
Is Mermaid MCP Server free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Mermaid MCP Server safe to use?
It scores 58 of 100. Grades: maintenance F, licence A, quality B. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Mermaid MCP Server?
Similar MCP servers: GitDiagram, draw.io, Pascal 3D Editor, Agent-Native Plan.
Does Mermaid MCP Server work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.