Whiteboard MCP server

What it does

MCP server for real-time collaborative whiteboarding at cnvs.app. AI agents and humans can simultaneously read, write, draw, and edit shared canvases with live subscriptions and kanban workflows. Available as a hosted HTTP endpoint requiring no authentication or setup.

• Create and edit collaborative whiteboards where an AI agent and human users can draw diagrams, flowcharts, or mind maps in real time on the same canvas.
• Convert lists and ideas into kanban boards with columns, lanes, and tasks that the AI can update while humans collaborate.
• Subscribe to board changes and react to human edits, with the AI pulling state snapshots or SVG previews to understand the current canvas state.

Tools this server exposes

Tool	Does
board_create	Create a new whiteboard and return its shareable URL and board ID.
board_inspect	Read the full state of a board including all text, shapes, links, images, and metadata.
preview_svg	Fetch an SVG visual rendering of the current board.
text_add	Add a text element, sticky note, or heading to the board at specified coordinates.
text_update	Modify the content or properties of an existing text element.
text_delete	Remove a text element from the board.
link_add	Add a hyperlink element to the board.
image_add	Upload and place an image on the board.
stroke_add	Draw a freehand stroke or shape on the board.
element_move	Reposition an element on the board.
element_delete	Remove any element from the board.
kanban_column_add	Create a new column in a kanban workflow.
kanban_task_add	Add a task to a kanban board with title, description, priority, and owner.
kanban_task_update	Modify task properties such as status, priority, or assigned owner.
kanban_task_delete	Remove a task from the kanban board.
kanban_state	Fetch the current state of all kanban columns, lanes, and tasks.
board_export	Export board data in a structured format.
wait_for_update	Long-poll for live changes to the board with configurable timeout.
subscribe_resource	Subscribe to real-time updates on board state, preview, or tasks via MCP resource subscription.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.