# Excalidraw (MCP Server)

> Draw hand-drawn Excalidraw diagrams live inside ChatGPT, Claude and VS Code

- Type: MCP server
- Publisher: Excalidraw (official)
- Categories: Design, Productivity
- Website: https://github.com/excalidraw/excalidraw-mcp
- Source: https://github.com/excalidraw/excalidraw-mcp
- Transport: streamable-http
- Server URL: https://mcp.excalidraw.com/mcp
- Sign-in: none
- GitHub stars: 5525
- Listed: 2026-02-04

## About

Excalidraw's MCP App server streams hand-drawn diagrams into clients that support MCP Apps, with viewport camera control and interactive fullscreen editing. The recommended setup is the public remote server, which needs no account; it can also be built from source and run locally over stdio.

## Install

1. **Connect it in ChatGPT** Turn on Developer mode in ChatGPT (Settings → Security and login), open Plugins, select + and paste https://mcp.excalidraw.com/mcp as the MCP server URL. Add it to a chat from the composer's tools menu.

2. **Or add it to Codex or the API**

   Codex CLI:

   ```bash
   codex mcp add excalidraw --url https://mcp.excalidraw.com/mcp
   ```

   config.toml:

   ```toml
   [mcp_servers.excalidraw]
   url = "https://mcp.excalidraw.com/mcp"
   ```

   Responses API:

   ```python
   from openai import OpenAI
   
   client = OpenAI()
   
   response = client.responses.create(
       model="gpt-6-astra",
       tools=[{
           "type": "mcp",
           "server_label": "excalidraw",
           "server_url": "https://mcp.excalidraw.com/mcp",
           "require_approval": "never",
       }],
       input="Sketch the architecture of a web app with a CDN, API and Postgres",
   )
   print(response.output_text)
   ```

## Example prompts

- "Sketch the architecture of a web app with a CDN, API and Postgres"
- "Draw a sequence diagram for OAuth login"
- "Make a quick wireframe of a settings page"
- "Diagram how our CI pipeline goes from commit to deploy"

## Related

- [Notion](https://chatgptplugins.directory/mcp/notion.md): Search, read, and write Notion pages, databases, and comments via hosted MCP
- [Atlassian Rovo (Jira & Confluence)](https://chatgptplugins.directory/mcp/atlassian-rovo.md): Work with Jira issues and Confluence pages through Atlassian's hosted MCP
- [Browser Use](https://chatgptplugins.directory/mcp/browser-use.md): Run Browser Use cloud browser agents or control a local browser over MCP
- [Filesystem](https://chatgptplugins.directory/mcp/filesystem.md): Secure local file operations with configurable directory access
- [Memory](https://chatgptplugins.directory/mcp/memory.md): Knowledge graph-based persistent memory across conversations
- [Mem0](https://chatgptplugins.directory/mcp/mem0.md): Hosted long-term memory for AI agents and clients

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Source: https://chatgptplugins.directory/mcp/excalidraw · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.