# How to connect Mermaid Chart MCP to Claude Cowork

```json
{
  "title": "How to connect Mermaid Chart MCP to Claude Cowork",
  "toolkit": "Mermaid Chart MCP",
  "toolkit_slug": "mermaid_chart_mcp",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/mermaid_chart_mcp/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/mermaid_chart_mcp/framework/claude-cowork.md",
  "updated_at": "2026-08-09T06:42:28.609Z"
}
```

## Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.
This guide walks you through the easiest and most secure way to connect your Mermaid Chart account to Cowork via Composio Connect, enabling it to validate checkout flow Mermaid syntax, render deployment sequence diagram as SVG, preview user journey diagram interactively, and more such actions on your behalf without compromising your account security.

## Also integrate Mermaid Chart MCP with

- [ChatGPT Work](https://composio.dev/toolkits/mermaid_chart_mcp/framework/chatgpt)

## Connect Mermaid Chart MCP to Claude Cowork

### Connecting Mermaid Chart to Claude Cowork
1. Open Customize
In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.
2. Add the Composio MCP server
Click Add custom connector and paste in the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.
With Composio Connect, Cowork can securely access apps like Mermaid Chart through MCP without you sharing account credentials directly with the agent.

## What is the Mermaid Chart MCP server, and what's possible with it?

The Mermaid Chart MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Mermaid Chart account. It provides structured and secure access so your agent can perform Mermaid Chart operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `MERMAID_CHART_MCP_VALIDATE_AND_RENDER_MERMAID_DIAGRAM` | Validate and render mermaid diagram | Use this tool to output a Mermaid diagram: - The tool will validate the diagram syntax and render it to a UI widget. - The widget will contain the diagram code, a "Copy Code" button, and a rendered diagram. - If the diagram is invalid, the widget will give user a link to repair the diagram in Mermaid Live. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Mermaid Chart MCP server connects Claude Cowork to your Mermaid Chart account through Composio. Once connected, Cowork can use the available Mermaid Chart tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build Mermaid Chart MCP Agent with another framework

- [ChatGPT Work](https://composio.dev/toolkits/mermaid_chart_mcp/framework/chatgpt)

## Related Toolkits

- [Figma](https://composio.dev/toolkits/figma) - Figma is a collaborative interface design tool for teams and individuals. It streamlines design workflows with real-time collaboration and easy sharing.
- [Abyssale](https://composio.dev/toolkits/abyssale) - Abyssale is a creative automation platform for generating images, videos, GIFs, PDFs, and HTML5 content programmatically. It streamlines and scales visual content production for marketing, design, and operations teams.
- [Alttext ai](https://composio.dev/toolkits/alttext_ai) - AltText.ai is a service that generates alt text for images automatically. It helps boost accessibility and SEO for your visual content.
- [Bannerbear](https://composio.dev/toolkits/bannerbear) - Bannerbear is an API-driven platform for generating images and videos automatically at scale. It helps businesses create custom graphics, social visuals, and marketing assets using powerful templates.
- [Canva](https://composio.dev/toolkits/canva) - Canva is a drag-and-drop design suite for creating professional graphics, presentations, and marketing materials. It makes it easy for anyone to design with beautiful templates and a vast library of elements.
- [Claid ai](https://composio.dev/toolkits/claid_ai) - Claid.ai delivers AI-driven image editing APIs for tasks like background removal, upscaling, and color correction. It helps automate and enhance image workflows with powerful, developer-friendly tools.
- [Cloudinary](https://composio.dev/toolkits/cloudinary) - Cloudinary is a cloud-based platform for managing, uploading, and transforming images and videos. It streamlines media workflows and delivers optimized assets globally.
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- [DeepImage](https://composio.dev/toolkits/deepimage) - DeepImage is an AI-powered image enhancer and upscaler. Get higher-quality images with just a few clicks.
- [Dreamstudio](https://composio.dev/toolkits/dreamstudio) - DreamStudio is Stability AI’s platform for generating and editing images with AI. It lets you easily turn ideas into stunning visuals, fast.
- [Dynapictures](https://composio.dev/toolkits/dynapictures) - Dynapictures is a cloud-based platform for generating personalized images at scale. Instantly create hundreds of custom visuals using your data sources, like Google Sheets.
- [Excalidraw MCP](https://composio.dev/toolkits/excalidraw_mcp) - Excalidraw MCP is a no-auth MCP server for creating hand-drawn style diagrams in Excalidraw. Use it to generate visual sketches with viewport camera control and fullscreen editing.
- [Fal.ai](https://composio.dev/toolkits/fal_ai) - Fal.ai is a generative media platform offering 600+ AI models for images, video, voice, and audio. Developers use Fal.ai for fast, scalable access to cutting-edge generative AI tools.
- [Gamma](https://composio.dev/toolkits/gamma) - Gamma is an AI-powered platform for making beautiful, interactive presentations and documents. It lets anyone create and share engaging decks with minimal effort.
- [Html to image](https://composio.dev/toolkits/html_to_image) - Html to image converts HTML and CSS into images or captures web page screenshots. Instantly generate visuals from code or web content—no manual screenshots needed.
- [Imagior](https://composio.dev/toolkits/imagior) - Imagior is an AI-powered image generation platform that lets you create and customize images using dynamic templates and APIs. Perfect for businesses and creators needing fast, scalable visuals without design hassle.
- [Imejis io](https://composio.dev/toolkits/imejis_io) - Imejis io is an API-based image generation platform with powerful customization and template support. It lets you create and modify images in seconds, no manual design work required.
- [Imgix](https://composio.dev/toolkits/imgix) - Imgix is a real-time image processing and delivery service for developers. It helps you optimize, transform, and deliver images efficiently at any scale.
- [Kraken io](https://composio.dev/toolkits/kraken_io) - Kraken.io is an image optimization and compression platform. It helps you shrink image file sizes while keeping visual quality intact.
- [Logo dev](https://composio.dev/toolkits/logo_dev) - Logo.dev is an API and database for high-resolution company logos and brand metadata. Instantly fetch official logos from any domain without scraping or manual searching.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Mermaid Chart MCP?

With a standalone Mermaid Chart MCP server, the agents and LLMs can only access a fixed set of Mermaid Chart tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Mermaid Chart and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Mermaid Chart tools.

### Can I manage the permissions and scopes for Mermaid Chart while using Tool Router?

Yes, absolutely. You can configure which Mermaid Chart scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Mermaid Chart data and credentials are handled as safely as possible.

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