MCP100 Assessment

Editorial verdict

Official Excalidraw MCP Apps integration for generating and interactively viewing/editing Excalidraw diagrams. Capabilities: Generate Excalidraw diagrams from AI instructions; Render diagrams through MCP Apps; Control supported viewport/camera interactions; Open/edit diagrams interactively in supported clients

Reviewed October 21, 2026

Task Fit

Mapped

Specialized workflows

Trust

Status warning

maintenance_source_health; tool_contract; install_supply_chain; advisory_freshness; adoption_evidence_presence

Maintenance

Date unavailable

No dated repository or package update is currently stored.

Popularity

Signals available

Visible usage signals are shown for discovery only, not as proof of safety.

Best for

Users who want AI-generated/edited Excalidraw diagrams with interactive MCP Apps rendering.

Not ideal for

Clients without MCP Apps support or workflows that require a mature cross-client rendering standard.

Avoid if

Do not assume identical interactive behavior across MCP clients; MCP Apps/client support is still evolving.

Trade-offs

Promising signal, but it ranks below the current Recommended/Shortlist admission cohort on maturity, uniqueness, publisher trust, security clarity, or MCP-native evidence.

Evidence scope

Evidence

Current source snapshot

Popularity

5.6k MCP repository stars

No MCP-specific package metric is stored

Repository identity: excalidraw/excalidraw-mcp

Package identity: @mcp-demos/excalidraw-server

Stars observed October 21, 2026 · Downloads observed October 21, 2026

Repository evidence: exact. Exact current MCP implementation/distribution. Do not substitute similarly named community Excalidraw MCP packages. The official repository declares @mcp-demos/excalidraw-server but public registry publication was not verified.

Package evidence: declared_exact_but_public_registry_not_verified. Not MCP-specific/comparable for MCP-server adoption. No attributable public download metric was verified. Do not substitute similarly named community Excalidraw MCP packages. The official repository declares @mcp-demos/excalidraw-server but public registry publication was not verified.

Maintenance

Publisher activity observed October 21, 2026

Current source snapshot

Trust review

Source relationship: First-party MCP

Reviewed October 21, 2026

Sources

GitHub repository ↗Official setup docs ↗

Supporting evidence (2)

Source file: package.json ↗Evidence source ↗

Evidence-backed setup

Install & Agents

Choose your MCP client. A client connects to the MCP server; the language model is selected inside that client. Only stored, source-backed configurations are shown.

Claude Desktop

Transport not recorded

Publisher documented

Connect to https://mcp.excalidraw.com.
Use the reviewed publisher launcher: official Excalidraw MCP App local build/extension.

The publisher provides client-specific setup instructions.

Verify safely: Verify the client establishes an MCP session and can enumerate the server's advertised capabilities before any high-impact action.

Uninstall and revoke

Remove or disable this MCP server entry from the client configuration; revoke OAuth/API credentials when the connection created or used dedicated credentials.

Evidence & methodology

Publisher-documented setup is not the same as MCP100 execution testing. “MCP100 logic checked” means the stored configuration shape was reviewed, not that third-party MCP software was run.

Evidence checked 2026-09-13T00:00:00Z

Evidence 1 ↗

Reviewed setup

Type-appropriate, source-backed setup for this mcp server profile.

Endpoint: https://mcp.excalidraw.com
Setup notes: Source rechecked October 21, 2026: Official Excalidraw MCP App Server. Lifecycle: current active. Do not substitute similarly named community Excalidraw MCP packages. The official repository declares @mcp-demos/excalidraw-server but public registry publication was not verified.

Read additional publisher installation details

From the publisher README

Publisher installation details

Original client setup and configuration retained from the publisher documentation.

View original README ↗

Publisher-documented clients

Claude DesktopGooseVS Code

These names appear in the publisher's installation documentation. MCP100-verified configurations are shown separately above when available.

Install

Works with any client that supports MCP Apps — Claude, ChatGPT, VS Code, Goose, and others. If something doesn't work, please open an issue.

Remote (recommended)

`https://mcp.excalidraw.com`

For apps that don't yet have an official integration, you can add a custom MCP / connector (naming can vary between apps).

Local

Option A: Download Extension

Download excalidraw-mcp-app.mcpb from Releases
Double-click to install in Claude Desktop

Option B: Build from Source

git clone https://github.com/excalidraw/excalidraw-mcp.git
cd excalidraw-mcp-app
pnpm install && pnpm run build

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "excalidraw": {
      "command": "node",
      "args": ["/path/to/excalidraw-mcp-app/dist/index.js", "--stdio"]
    }
  }
}

Restart Claude Desktop.

Loading optional publisher installation details…

Show source-catalog configuration

Connect to https://mcp.excalidraw.com.

Capability

What it does

Official Excalidraw MCP Apps integration for generating and interactively viewing/editing Excalidraw diagrams. Capabilities: Generate Excalidraw diagrams from AI instructions; Render diagrams through MCP Apps; Control supported viewport/camera interactions; Open/edit diagrams interactively in supported clients

Design & CreativeMedia & MarketingSoftware & Technology

Representative uses

Users who want AI-generated/edited Excalidraw diagrams with interactive MCP Apps rendering.

Important limits

Clients without MCP Apps support or workflows that require a mature cross-client rendering standard.

Context Footprint

Not measured yet

Estimated token footprint of the MCP tool schemas exposed to the agent.

Reviewed access

Access & risk

Review the exact access boundary before connecting this MCP to accounts, credentials, or sensitive data.

Authentication: Public/remote authentication requirements depend on the current Excalidraw service/client path; do not invent account scopes where the publisher does not require them.
Permissions: Primarily diagram/content creation and interactive rendering in the connected client; exact persistence/sharing behavior depends on deployment/client.
Data handling: Diagram content and prompts can transit the remote service and AI client/provider when the hosted endpoint is used.
Cost: Current service/client plan or hosting/model costs may apply; use publisher pricing only.
Risk and cautions: Main risk is immature MCP Apps/client interoperability and diagram content exposure, not broad infrastructure mutation.

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Choose this instead if

Choose Figma MCP instead if turning selected Figma frames into implementation context.

Provide design context from Figma to supported development tools.

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Framelink MCP for Figma

MCP100 Recommended

Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

Choose this instead if

Choose Framelink MCP for Figma instead if providing coding agents with Figma node structure, styles, variables, and design assets needed for implementation.

Recommended for translating selected Figma designs into implementation context when the Figma token and accessible files are deliberately limited.

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Playwright MCP

MCP100 Recommended

Let AI clients inspect and automate web browsers with Playwright.

Choose this instead if

Choose Playwright MCP instead if inspecting and testing web interfaces through accessibility snapshots.

Let AI clients inspect and automate web browsers with Playwright.

Compare with Excalidraw View Playwright MCP details

Read publisher documentation

Publisher documentation

Publisher README

Original product, capability, tool, and usage documentation from the MCP publisher. Installation sections appear under Install & Agents.

View original README ↗

Excalidraw MCP App Server

MCP server that streams hand-drawn Excalidraw diagrams with smooth viewport camera control and interactive fullscreen editing.

Usage

Example prompts:

"Draw a cute cat using excalidraw"
"Draw an architecture diagram showing a user connecting to an API server which talks to a database"

What are MCP Apps and how can I build one?

Text responses can only go so far. Sometimes users need to interact with data, not just read about it. MCP Apps is an official Model Context Protocol extension that lets servers return interactive HTML interfaces (data visualizations, forms, dashboards) that render directly in the chat.

Getting started for humans: documentation
Getting started for AIs: skill

Contributing

PRs welcome! See Local above for build instructions.

Deploy your own instance

You can deploy your own copy to Vercel in a few clicks:

Fork this repo
Go to vercel.com/new and import your fork
No environment variables needed — just deploy
Your server will be at https://your-project.vercel.app/mcp

Release checklist

# 1. Bump version in manifest.json and package.json
# 2. Build and pack
pnpm run build && mcpb pack .

# 3. Create GitHub release
gh release create v0.3.0 excalidraw-mcp-app.mcpb --title "v0.3.0" --notes "What changed"

# 4. Deploy to Vercel
vercel --prod

Credits

Built with Excalidraw — a virtual whiteboard for sketching hand-drawn like diagrams.

License

MIT

Loading optional publisher documentation…

FAQ

Is this an official MCP?

github:excalidraw is listed as First-party MCP in MCP100’s current evidence.

Current official resources:

Publisher documentation ↗