Brockreece Whimsical MCP Server
B

Brockreece Whimsical MCP Server

A backend service that converts Mermaid markup into Whimsical charts through the MCP protocol, supporting automatic generation of system architecture diagrams and returning chart URLs and image data.
2 points
9.1K

What is the Whimsical MCP Server?

This is a Model Context Protocol (MCP) server that allows users to automatically generate Whimsical charts through code. It integrates the Whimsical API and can convert charts described in Mermaid markup language into beautiful visual charts.

How to use the Whimsical MCP Server?

You can send Mermaid chart descriptions through MCP clients such as Claude, and the server will automatically convert them into Whimsical charts and return the chart links and image data.

Applicable scenarios

Suitable for scenarios that require automatic generation of visual documents such as system architecture diagrams, flowcharts, and sequence diagrams, especially for development teams that need to automatically convert technical documents into charts.

Main features

Mermaid to Whimsical conversion
Automatically convert Mermaid markup language into Whimsical visual charts
Dual output mode
Return both the Whimsical chart URL and the base64-encoded image for easy iterative modification by the client
Integration with MCP clients
Support seamless collaboration with MCP clients such as Claude and Windsurf
Advantages
Automated chart generation saves time on manual drawing
Keep charts and technical documents updated synchronously
Support managing chart change history through code version control
Limitations
Basic knowledge of Mermaid syntax is required
Complex charts may require multiple iterative adjustments
Dependent on the availability of the Whimsical API

How to use

Install the server
Install automatically through Smithery or manually clone the repository
Configure the MCP client
Update the MCP client configuration to point to this server
Send a Mermaid chart
Send a chart description in Mermaid format through the MCP client

Usage examples

System architecture diagram generation
Convert the Mermaid description of the system architecture into a visual chart
Flowchart generation
Convert the Mermaid flowchart of the business process into a visual chart

Frequently Asked Questions

Do I need a Whimsical account to use it?
What types of Mermaid charts are supported?
Can the generated charts be edited?

Related resources

Whimsical official website
Whimsical visual collaboration platform
Mermaid syntax guide
Official documentation of the Mermaid markup language
GitHub repository
Project source code

Installation

Copy the following command to your Client for configuration
{
        "mcpServers": {
            "whimsical": {
                "command": "node",
                "args": [
                    "/path/to/this/repo/whimsical-mcp-server/dist/index.js"
                ]
            }
        }
    }
Note: Your key is sensitive information, do not share it with anyone.

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