Whimsical MCP Server
W

Whimsical MCP Server

The Whimsical MCP Server is a service based on the Model Context Protocol (MCP) that allows creating Whimsical diagrams programmatically. This service integrates with the Whimsical API, converts Mermaid markup into diagrams, and returns the diagram URL and base64 - encoded image.
2.5 points
8.6K

What is the Whimsical MCP Server?

This is a Model Context Protocol (MCP) server that can automatically convert diagrams described in Mermaid syntax into visual diagrams on the Whimsical platform. It acts as a bridge between AI assistants (such as Claude) and Whimsical, enabling non - technical users to generate professional diagrams through natural language.

How to use the Whimsical MCP Server?

Users only need to describe the desired diagram through an AI client (such as Claude), and the server will automatically convert the description into Mermaid syntax and generate a Whimsical diagram link and preview image.

Applicable scenarios

Suitable for scenarios that require quickly creating visual content such as system architecture diagrams, flowcharts, and sequence diagrams, especially for product managers, designers, and users without a technical background.

Main features

Mermaid integration
Automatically convert Mermaid markup language into Whimsical diagrams
Dual output mode
Return both the Whimsical link and the base64 - encoded image preview
Whimsical API integration
Directly connect with the Whimsical platform API to achieve automated diagram generation
Advantages
Automatically generate diagrams without manual drawing
Support creating diagrams through natural language descriptions
Retain the diagram editing link for convenient subsequent adjustment
Limitations
A Whimsical account is required to view the full diagram
Descriptions of complex diagrams may need to be adjusted multiple times
Dependent on third - party API services

How to use

Install the service
Install with one - click via Smithery or manually clone the repository
Configure the client
Point to the server path in the MCP client configuration
Use the diagram function
Describe the diagram you want through the AI client, and the server will automatically process and return the result

Usage examples

Create a system architecture diagram
Generate a diagram showing the MCP architecture
Generate a flowchart
Create a diagram for the user registration process

Frequently Asked Questions

Do I need a Whimsical account?
What types of diagrams are supported?
How to update the diagram?

Related resources

Whimsical official website
Diagram creation platform
Mermaid documentation
Mermaid markup language reference
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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