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# Figma Model Context protocol server
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## Problem
The official Figma MCP server has only read-only tools. **You can not change anything in the Figma document using the official Figma MCP server.**
You can use AI Agent in Figma Make. But, it is not convenient to chat in Figma Make and then move result to Figma to continue.
**The goal is to enable AI Agents to work with your Figma documents.**
You are able to ask you AI agent to implement the design in Figma that you want with this MCP server!
## Usage
### Prerequisites
1. Install `Node.js` if you don't have it
2. Clone this repository
### Start Figma Plugin
1. Switch to plugin directory: `cd plugin`
2. Install dependencies: `npm i`
3. Build Figma Plugin `npm run build`
4. Open Figma, open document you want to work with
5. Add Figma Plugin *Plugins* > *Development* > *Imprort Plugin from manifest*, select `/plugin/manifest.json`
6. Start the *Figma MCP Server* plugin
7. Expected result: Message *Not connected to MCP server* should be shown
8. Do not close Plugin window. It will show message *Connected to MCP server* when it is started.
Next time you can start plugin from: *Plugins* > *Development* > *Figma MCP Server*. And do 1-3 steps only when you want to get latest changes.
### Start MCP server
1. Switch to MCP directory: `cd mcp`
2. Install dependencies: `npm i`
3. Start the server: `npm run start`
4. Expected result: Messages `Server listening on http://localhost:38450` and `a user connected: .............` in the console
### Configure MCP server in your client
1. Use Streaming HTTP transport and `http://localhost:38450/mcp` URL
2. Turn off tools that you don't need
Now you should be able to ask your AI Agent to do something in Figma. For example:
**We are working on publishing it as Figma plugin. Figma reviewers haven't accepted it so far.**
Once Figma accept it as plugin, the configuration and start will be simplified a lot!
## Tools
TBD
## Development
Contributions to the project are welcome!
### MCP server
1. `cd mcp`
2. `npm i`
3. `npm run dev`
### Plugin
1. `cd plugin`
2. `npm i`
3. `npm run dev`
4. Open Figma
5. Plugins > Development > Import plugin from manifest ...
6. Select `manifest.json` from `plugin\manifest.json`
7. Start plugin
8. You should see *Connected to MCP server* message
### Add Plugin to Figma
1. Open Figma
2. Add Figma Plugin *Plugins* > *Development* > *Imprort Plugin from manifest*, select `/plugin/manifest.json`
### Inspector
1. `cd mcp`
2. `npm run inspector`
3. Use `http://127.0.0.1:38450/mcp` to connect
## Architecture
WebSockets server is used as a medium to transfer messages between MCP Server and Figma Plugin.
MCP server starts *Express.js* server with MCP endpoints and WebSockets *socket.io* server for communication with Plugin.
MCP server save tool calls into the queue and send message to WebSockets server.
Figma Plugin listen to the WebSocket server. And if there are any tasks to do, it takes them, do required actions, and return the result.
MCP server listen to the WebSockets server. If there are any messages from Figma plugin then it processes them. It found the apropriacte tool call in the queue. And executes the promise with the result from Figma plugin. If any of tool calls are executed for too long then it returns timeout wihtout waiting for the response.
## Security
Plugin gives access to your design document for external systems: AI Agents that you will connect. It acts as a bridge in the similar way as the official Figma MCP server. And, similar to the official MCP server it works on local machine and do not expose any information to the networks.
If you want to use it in the network, please do it on your own risk.
If you found any security issue, please report it via GitHub issue.
## Alternatives
If your tasks could be done by [official Figma MCP server](https://help.figma.com/hc/en-us/articles/32132100833559-Guide-to-the-Figma-MCP-server), please use it.
Before starting this project, I made a search for my idea to implement Figma MCP server using Figma plugin and sockets as protocol for communication. And I found [this one](https://github.com/grab/cursor-talk-to-figma-mcp). Initially, I thought to fork it and change for my needs. But, there are few things that I don't like: requirement to run separate server for socket, everything located in one file, very hard to maintain, JavaScript(not TypeScript or Python). But, you always can consider that server as an alternative.
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