Is Mcp_excalidraw safe to use?

Mcp_excalidraw has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.

How do I install Mcp_excalidraw?

Mcp_excalidraw supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Mcp_excalidraw do?

Mcp_excalidraw provides 22 tools: create_element, get_element, update_elements, delete_elements, clear_canvas and 17 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Mcp_excalidraw?

Mcp_excalidraw is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Mcp_excalidraw actively maintained?

Mcp_excalidraw is actively maintained - last commit was 3 days ago.

Mcp_excalidraw

Name: Mcp_excalidraw
Author: yctimlin

by yctimlin

MCP server and Claude Code skill for Excalidraw — programmatic canvas toolkit to create, edit, and export diagrams via AI agents with real-time canvas sync.

22 tools GitHub

No known CVEs

MIT license

Actively maintained

Last commit 3d ago

Works with most clients

Transport: stdio, sse, http

22 tools · ~946 tok

Grade B · 0.5% of 200K ctx

MCPpedia last refreshed this data 2d ago

Edit this pageView history

Mcp_excalidraw is an MCP server that MCP server and Claude Code skill for Excalidraw — programmatic canvas toolkit to create, edit, and export diagrams via AI agents with real-time canvas sync. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 68/100 on MCPpedia's security, maintenance and efficiency rubric.

Design

Step 1

Install in your client

Config is the same across clients - only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "excalidraw": {
      "env": {
        "ENABLE_CANVAS_SYNC": "true",
        "EXPRESS_SERVER_URL": "http://localhost:3000"
      },
      "args": [
        "/absolute/path/to/mcp_excalidraw/dist/index.js"
      ],
      "command": "node"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

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[![MCPpedia Score](https://mcppedia.org/api/badge/mcp-excalidraw)](https://mcppedia.org/s/mcp-excalidraw)

Read me

What Mcp_excalidraw does

Run a live Excalidraw canvas and control it from AI agents. This repo provides:

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories - click any category to see the underlying evidence.

Score breakdown

68/100across 5 weighted dimensions

How we score →

0255075100

−32

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (22)

Click any tool to inspect its schema.

~946 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience - it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Mcp_excalidraw safe to use?: Mcp_excalidraw has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.
How do I install Mcp_excalidraw?: Mcp_excalidraw supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Mcp_excalidraw do?: Mcp_excalidraw provides 22 tools: create_element, get_element, update_elements, delete_elements, clear_canvas and 17 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Mcp_excalidraw?: Mcp_excalidraw is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Mcp_excalidraw actively maintained?: Mcp_excalidraw is actively maintained - last commit was 3 days ago.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Design

Step 1

Install in your client

Config is the same across clients - only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "excalidraw": {
      "env": {
        "ENABLE_CANVAS_SYNC": "true",
        "EXPRESS_SERVER_URL": "http://localhost:3000"
      },
      "args": [
        "/absolute/path/to/mcp_excalidraw/dist/index.js"
      ],
      "command": "node"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/mcp-excalidraw)](https://mcppedia.org/s/mcp-excalidraw)

Read me

What Mcp_excalidraw does

Run a live Excalidraw canvas and control it from AI agents. This repo provides:

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

Excalidraw MCP Server, CLI & Agent Skill

mcp-excalidraw-server gives AI agents a live Excalidraw canvas they can draw on, look at, refine, and save into your repo. Your agent creates architecture diagrams and flowcharts programmatically, sees its own work via screenshots, fixes layout problems, and exports .excalidraw files you can commit next to your code.

One canvas, three ways to drive it:

Agent Skill + CLI — recommended for coding agents (Claude Code, Codex CLI, Cursor, OpenCode): npx -y mcp-excalidraw-server <command>. Zero config, auto-starts the canvas, composable JSON in/out.
MCP Server — 27 tools over stdio for any Model Context Protocol client (Claude Desktop, Cursor, Codex CLI, Antigravity, ...). Speaks MCP 2026-07-28 (server/discover, per-request _meta envelope, tool calls without a handshake) and stays compatible with 2025-era clients that open with initialize.
REST API — plain HTTP for LangChain and custom frameworks.

Core drawing runs locally (Node ≥ 20, MIT licensed) — no API keys or accounts. Mermaid conversion runs in the local browser canvas; share is optional and uploads an encrypted scene to excalidraw.com by default (or your own instance). The canvas page loads Excalidraw's fonts from the esm.sh CDN.

Demo

AI agent creates a complete architecture diagram from a single prompt (4x speed). Watch full video on YouTube

Demo
What It Is
How We Differ from the Official Excalidraw MCP
What's New
Installation
Agent Skill
CLI Reference
Headless Rendering
Configure MCP Clients
MCP Tools (27 Total)
Quick Start (From Source / Docker)
Testing
FAQ
Troubleshooting
Known Issues / TODO
Development
License

What It Is

Ask your agent to "draw the architecture of this service" and it produces a real, editable Excalidraw diagram — not a one-shot image. Because the agent can query, screenshot, and update individual elements, it iterates until labels fit, nothing overlaps, and arrows route cleanly; then it exports the result as a .excalidraw file that lives in your repo and gets updated when the code changes.

Under the hood there are two processes, one product:

Canvas server: Excalidraw web UI + REST API + WebSocket real-time sync (default http://127.0.0.1:3000)
A thin front-end of your choice: the CLI, the MCP stdio server, or raw HTTP — all drive the same canvas

Since v1.1 the canvas server starts itself: canvas-driving CLI commands (and the MCP server on launch) auto-spawn it if nothing is listening. status only inspects the current server state. Set EXCALIDRAW_NO_AUTOSTART=1 to opt out.

How We Differ from the

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories - click any category to see the underlying evidence.

Score breakdown

68/100across 5 weighted dimensions

How we score →

0255075100

−32

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (22)

Click any tool to inspect its schema.

~946 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience - it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Mcp_excalidraw safe to use?: Mcp_excalidraw has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.
How do I install Mcp_excalidraw?: Mcp_excalidraw supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Mcp_excalidraw do?: Mcp_excalidraw provides 22 tools: create_element, get_element, update_elements, delete_elements, clear_canvas and 17 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Mcp_excalidraw?: Mcp_excalidraw is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Mcp_excalidraw actively maintained?: Mcp_excalidraw is actively maintained - last commit was 3 days ago.

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MCP Security Weekly

Get CVE alerts and security updates for Mcp_excalidraw and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Mcp_excalidraw

Install in your client

What Mcp_excalidraw does

Test This Server

Why this score

68/100across 5 weighted dimensions

Security

Tools (22)

Reviews

Frequently Asked Questions

Similar servers

Discussion

Mcp_excalidraw

Install in your client

What Mcp_excalidraw does

Test This Server

Excalidraw MCP Server, CLI & Agent Skill

Demo

Table of Contents

What It Is

How We Differ from the

Why this score

68/100across 5 weighted dimensions

Security

Tools (22)

Reviews

Frequently Asked Questions

Similar servers

Discussion

Excalidraw MCP Server, CLI & Agent Skill

Demo

Table of Contents

What It Is

How We Differ from the