How to install Draw40 in Claude Desktop
To install Draw40 in Claude Desktop, open Settings, Developer, Edit Config, paste the "draw40" block into mcpServers in claude_desktop_config.json, and restart the app.
Built from the published package · server updated 11 days ago
- 1
Open the config file
In Claude Desktop, go to Settings, then Developer, then Edit Config.
- 2
Add the server
Paste this into the file. If you already have servers, add the "draw40" entry inside your existing mcpServers block.
{ "mcpServers": { "draw40": { "url": "https://draw.404040.net/mcp" } } } - 3
Restart Claude Desktop
Quit the app fully and open it again. The server appears under the tools icon in a new chat.
Config file: macOS: ~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json
MCP servers run with your permissions. If Draw40 needs an API key, add it under env in the config. Check its README.
Install Draw40 in another app
Similar servers
Architecture diagrams, explanations and Mermaid source for public GitHub repositories.
Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.
Structured visual plans and PR recaps with diagrams, prototypes, annotations, and sharing
Questions
Does Draw40 work in Claude Desktop?
Yes. Claude Desktop supports local mcp servers through a config file, remote servers as connectors, and Draw40 installs with the steps above.
Draw40 does not show up in Claude Desktop. What now?
Restart Claude Desktop fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.
Is Draw40 safe?
It scores 13 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.