Best Diagram AI Skills & MCP Servers
23 curated Diagram skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.
Vaults Diagram Tools
Mermaid to assets. Source code to maps. MCP for agents.
Devtoolkit
29 developer utilities as an MCP server — JSON repair, SQL format, hash, encode/decode, UUID, regex, CSV, subnet calc, diagram generation, git diff parsing, DB schema parsing, JSON schema validation, and more. No API keys. Runs locally.
Excalimaid
Convert Mermaid diagrams to Excalidraw and open in browser. Includes MCP server for AI assistants.
Supacanvas
The workspace for every dashboard, mockup, and diagram your AI tools build. Captured, searchable, exportable, yours forever. Works with Claude, Cursor, and any AI tool that speaks MCP.
Dgmo
MCP server for rendering DGMO diagrams — SVG/PNG output, browser preview, HTML reports, and 35+ chart types. Works with Claude Desktop, Claude Code, and any MCP client.
Excalidraw Server
Advanced MCP server for Excalidraw with real-time canvas, WebSocket sync, and comprehensive diagram management
Excalidraw Sentinel
Hardened, self-hosted Excalidraw MCP server with SQLite persistence, multi-tenancy, auto-sync, security middleware, and 369 tests
Whiteboard
MCP server + Excalidraw whiteboard UI for AI-assisted diagramming (Claude Code / Codex).
Claude Mermaid
MCP server for previewing Mermaid diagrams in Claude Code
Mcp
MCP server for Zindex - agent-native diagram state infrastructure. A thin HTTP client exposing tools (create, patch, validate, normalize, diff, render, list-revisions, get-scene, delete-scene, undelete-scene, list-recently-deleted, submit-to-support, publ
Server
MCP server for Next AI Draw.io - AI-powered diagram generation with real-time browser preview
Brick Diagram
Diagram generation — produce Mermaid, DOT/Graphviz, and ASCII diagrams from data.
Excalidraw
Security-hardened MCP server for Excalidraw with API key auth, rate limiting, and real-time canvas sync
Fast Mermaid Validator
High-performance API and Model Context Protocol (MCP) server for validating Mermaid diagrams with comprehensive security features, multiple transport options, and enterprise-grade capabilities
Mermaid
A Model Context Protocol (MCP) server that converts Mermaid diagrams to PNG images
Embedded Editor For Claude Code
Embedded visual workspace for Claude Code — Excalidraw diagrams (with MCP tools + inline PNG), tldraw canvases, and Markdown notes, all linked by wikilinks
Kroki
A Model Context Protocol server for converting Mermaid diagrams to SVG using Kroki.io
Network Diagram
Visual network topology editor with AI-agent MCP integration plus a cross-platform URL handler agent. Click any SSH / Postgres / Redis port on a node in NetMap (or any ssh:// / postgres:// / redis:// link in your OS) → picks your installed client (psql /
Mcp
Official draw.io MCP server for LLMs - Open diagrams in draw.io editor
Plantuml
MCP server for generating PlantUML diagrams
Mina
MCP Server for interacting with Mina projects.
Mina Linux X64
Linux x64 binary for @keadex/mina-mcp-server
Lucid
Model Context Protocol (MCP) server for Lucid App integration with multimodal AI analysis
About Diagram skills on iClaude
iClaude is the universal install layer for AI skills. Every Diagram skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.