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Mermaid Chart Official MCP Server

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Mermaid Chart MCP for creating and editing diagrams (flowcharts, sequence diagrams, etc.) from AI assistants.

What is Mermaid Chart?

Mermaid Chart mermaid chart mcp for creating and editing diagrams (flowcharts, sequence diagrams, etc.) from ai assistants.. The official Mermaid Chart MCP server provides AI agents with standardized access to Mermaid Chart's services, enabling powerful automation and integration capabilities that enhance developer productivity and streamline workflows.

This official MCP server is maintained and verified by Mermaid Chart, ensuring reliability, security, and up-to-date functionality. Unlike community-maintained servers, this official integration provides long-term support, comprehensive documentation, and direct vendor assistance. The server is hosted on mermaidchart.com, guaranteeing secure and reliable access to Mermaid Chart's services.

Whether you're building AI-powered applications, automating workflows, or enhancing your development tools, the Mermaid Chart MCP server provides a standardized way to connect AI agents with Mermaid Chart's extensive platform capabilities. This integration enables natural language interactions with Mermaid Chart, making it easier than ever to leverage Mermaid Chart's features through AI assistants like Claude, ChatGPT, and Cursor.

Installation Instructions

Installation Instructions
Add Mermaid Chart to your MCP-compatible client
https://mcp.mermaidchart.com/mcp
Cursor logoCursor Instructions
1

Go to Settings → Cursor Settings

2

Click "Add new global MCP Server"

3

Paste the MCP configuration into mcp.json and restart

Install with Cursor

Or manually add to your mcp.json:

{ "mcpServers": { "mermaid-chart": { "url": "https://mcp.mermaidchart.com/mcp" } } }

Mermaid Chart MCP Server Capabilities

The official Mermaid Chart MCP server enables AI agents to:

  • Access AI models and machine learning capabilities
  • Perform RAG (Retrieval-Augmented Generation) operations
  • Search and retrieve from knowledge bases
  • Generate embeddings and vector searches
  • Integrate AI capabilities into agent workflows

These capabilities make it easy for AI agents to work with Mermaid Chart as part of a larger automation strategy, enabling seamless integration between AI assistants and your existing tools.

Available Tools

The Mermaid Chart MCP server provides 3 tools for AI agents to interact with the platform. Use the search below to find specific tools.

Tool NameDescription
create_diagramCreate or update a Mermaid diagram
list_diagramsList user's diagrams
render_diagramRender diagram to image

Last updated: March 1, 2026 at 12:00 PM

Common Use Cases

Automated Workflow Management

AI agents can use the Mermaid Chart MCP server to automate repetitive tasks and manage workflows within Mermaid Chart's platform.

Data Retrieval and Analysis

The MCP server allows AI agents to query and retrieve data from Mermaid Chart, enabling intelligent data analysis and insights.

Integration with Development Tools

Developers can integrate Mermaid Chart capabilities directly into their AI coding assistants for seamless workflows.

Frequently Asked Questions

How do I get a Mermaid Chart API key?

Visit https://www.mermaidchart.com, create an account, and generate an API key from your dashboard. Most tools offer a free tier to get started, making it easy to begin using the Mermaid Chart MCP server.

Is this the official Mermaid Chart MCP server?

Yes, this MCP server is officially provided and maintained by Mermaid Chart. The endpoint https://mcp.mermaidchart.com/mcp is hosted on their official domain mermaidchart.com, ensuring reliability and security.

What permissions does Mermaid Chart MCP need?

The Mermaid Chart MCP server requires appropriate API credentials and permissions based on the operations you want to perform. Check the documentation for specific permission requirements.

Can I use Mermaid Chart MCP with multiple clients?

Yes, you can configure the same MCP server across Cursor, Claude Desktop, Cline, and other MCP-compatible clients simultaneously. Each client maintains its own configuration.

Is Mermaid Chart MCP server free?

The MCP server itself is free to use, but you may need a Mermaid Chart account and API access, which may have its own pricing tiers. Check https://www.mermaidchart.com for current pricing information.

What can Mermaid Chart MCP server do?

The Mermaid Chart MCP server enables AI agents to access AI models and perform RAG operations. Mermaid Chart MCP for creating and editing diagrams (flowcharts, sequence diagrams, etc.) from AI assistants. This allows you to interact with Mermaid Chart's platform through natural language commands in your AI assistant.

Troubleshooting

Connection Failed

Ensure your API key is correctly configured and your network allows outbound connections to mermaidchart.com. Verify that the MCP endpoint URL https://mcp.mermaidchart.com/mcp is accessible from your network.

Authentication Error

Verify your API key is valid and has not expired. Generate a new key from https://www.mermaidchart.com if needed. Make sure you're using the correct authentication method as specified in the documentation.

Server Not Responding

Check Mermaid Chart's status page for any ongoing incidents. Try restarting your MCP client and verify that the server endpoint is correct. If issues persist, consult the official documentation or support channels.

Related MCP Servers

Explore other official MCP servers that work well with Mermaid Chart:

Chronograph MCP server for connecting AI assistants to Chronograph private equity and investment data and workflows.
The Clerk MCP server allows AI agents like Claude, Cursor, and Github Copilot to access Clerk SDK snippets and implementation patterns.
DocuSign MCP Server (beta) for e-signature and document workflow integration with AI assistants.

About Model Context Protocol

The Model Context Protocol (MCP) is an open standard that enables AI models to securely connect to external APIs, tools, and data sources. This official MCP server from Mermaid Chart provides standardized access to their services, allowing AI agents to interact with Mermaid Chart's platform seamlessly.

To manage all your MCP servers in one place, use Apigene's MCP Gateway, which provides centralized management, security, and governance for all your MCP server connections.

Learn more about MCP in our complete guide or browse our FAQ for common questions.

Server Information

Domain

mermaidchart.com

MCP Endpoint

https://mcp.mermaidchart.com/mcp