How do I connect Excalidraw MCP Server to Claude?

Run `claude mcp add lesleslie-excalidraw-mcp -- uvx excalidraw-mcp` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.

Is Excalidraw MCP Server free?

The listed licence is BSD-3-Clause. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can Excalidraw MCP Server do?

Excalidraw MCP Server documents 16 tools to the agent, including align_elements, batch_create_elements, create_element. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

Excalidraw MCP

Unclaimed

by lesleslie

Unofficial Excalidraw MCP Server

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01 / Choose your client

02 / Before you connect

Authentication is not specified. Check the project instructions before connecting.

Install the runtime required by the project and make it available to your client.

Project instructionsEnvironment variable names (optional)

Use names from the project instructions, separated by commas. Enter names only, never secret values.

03 / Add the configuration

Source: generated from public install instructions

claude mcp add --transport stdio 'lesleslie-excalidraw-mcp' -- 'uvx' 'excalidraw-mcp'

Run in your terminal after replacing any placeholders.

04 / Check it in your client

Open your client’s MCP settings and confirm the server connects and lists its tools. A copied configuration does not confirm a working connection.

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16 of 16 tools

Documented tools (16)

From project documentation. A server handshake does not verify each tool’s description or behavior.

align_elements

Align elements (left, center, right, top, middle, bottom)

batch_create_elements

Create complex diagrams in one call

create_element

Create any type of Excalidraw element

delete_element

Remove elements

distribute_elements

Distribute elements evenly

get_resource

Access scene, library, theme, or elements data

group_elements

Group multiple elements

lock_elements

/ unlockelements - Lock/unlock elements

query_elements

Search elements with filters

ungroup_elements

Ungroup element groups

update_element

Modify existing elements

websocket_broadcast_test_event

Publish a synthetic event to a room (development use)

websocket_get_metrics

Throughput, rate-limit counters, and connection metrics

websocket_get_status

Active connections, rooms, and per-room subscriber counts

websocket_health_check

Liveness probe for the WebSocket server

websocket_list_rooms

Enumerate active diagram/cursor/presence/global rooms

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about Excalidraw MCP Server

How do I connect Excalidraw MCP Server to Claude?: Run `claude mcp add lesleslie-excalidraw-mcp -- uvx excalidraw-mcp` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.
Is Excalidraw MCP Server free?: The listed licence is BSD-3-Clause. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can Excalidraw MCP Server do?: Excalidraw MCP Server documents 16 tools to the agent, including align_elements, batch_create_elements, create_element. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.