The Figma MCP Server is an unofficial implementation of the Model Context Protocol that allows AI assistants to interact with Figma design documents. Unlike the official Figma MCP server which is read-only, this server enables full editing capabilities, allowing AI agents to create, edit, and arrange design elements within Figma documents.

The server provides tools for AI assistants to work directly with Figma design documents, enabling actions like creating components, organizing documents, and preparing design drafts. It supports working with components and auto layouts, allowing AI agents to create design elements with proper properties and responsive behavior. The server operates within the same design document context, supporting undo and redo functionality for all actions performed.

The architecture uses a WebSockets-based communication system between the MCP server and a Figma plugin. When an AI agent calls a tool on the MCP server, it saves the call in a queue and sends the request to the WebSockets server. The Figma plugin listens for these messages, executes the required actions in the design document, and sends back context information. The MCP server matches responses with initial tool calls and returns results to the AI agent.

The primary benefit is enabling designers to work collaboratively with AI assistants to speed up their workflow. Instead of spending time manually setting properties on Figma nodes, designers can focus on the creative aspects while AI handles repetitive tasks. The tool helps prepare design drafts, organize documents, and generate starting points for further refinement.

The target users are designers who want to leverage AI assistance for Figma design work. It integrates with AI assistants that support MCP servers like ChatGPT, Claude Desktop, Cursor, and Windsurf. The project is built using Node.js and requires configuration of both a Figma plugin and MCP server component.