AI Plugin Index
1
GitDiagram
ahmedkhaleel2004
Architecture diagrams, explanations and Mermaid source for public GitHub repositories.
Updated October 2026
The 10 best design MCP servers
The best design MCP servers in October 2026 are GitDiagram, draw.io, Agent-Native Plan. GitDiagram is the most widely used; Primer MCP is the most actively updated; GitDiagram is a good pick if you need a hosted server that also works in ChatGPT.
GitDiagram
ahmedkhaleel2004
Primer MCP
primer
GitDiagram
ahmedkhaleel2004
Ad slot · 12 of 12 openYour product hereReach people installing design MCP servers, right when they set them up.See prices →
2
draw.io
jgraph
Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.
3
Agent-Native Plan
BuilderIO
Structured visual plans and PR recaps with diagrams, prototypes, annotations, and sharing
4
Figma-Context-MCP
GLips
Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.
5
Unity-MCP
IvanMurzak
Make 3D games in Unity Engine with AI. MCP Server + Plugin for Unity Editor and Unity games.
6
Visual Explainer
nicobailon
Agent skill that generates beautiful HTML pages for diagrams, diff reviews, plan reviews, slide decks, and data tables
7
Drawio MCP
jgraph
Official draw.io MCP server for LLMs - Open diagrams in draw.io editor
8
Critical
addyosmani
Extract & inline critical-path CSS — two engines, automatic routing, agent-native.
9
Pascal App CLI
pascalorg
Run the open-source Pascal 3D editor, local projects, and MCP agent tools from your terminal
10
Primer MCP
primer
An MCP server that connects AI tools to the Primer Design System
See every one in Design.
Questions
How did you rank these design MCP servers?
Only maintained, original projects are listed. They are ranked by GitHub stars, with recent activity shown next to each. The list updates daily. See how we list and rank.
Which design MCP servers work in ChatGPT?
ChatGPT needs a remote server with a URL. GitDiagram, draw.io, Agent-Native Plan offer one.