start_session
Start browser preview and open Excalidraw editor
How to use it
start_session is exposed by the Excalidraw MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the start_session tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Excalidraw MCP
$
claude mcp add excalidraw -- npx -y @scofieldfree/excalidraw-mcpOther tools in Excalidraw MCP (10)
add_elements
Add shapes, text, arrows to the canvas
add_template_architecture
Add a pre-built architecture diagram template
create_diagram
Create a new diagram or clear existing
create_from_mermaid
Convert Mermaid syntax to Excalidraw
delete_diagram
Delete a diagram session
delete_element
Remove elements from canvas
export_diagram
Export diagram to PNG, SVG, or JSON
get_scene
Retrieve current diagram state
list_sessions
List all active diagram sessions
update_element
Modify existing element properties