MCP server directory

Bidirectional Figma server over a local WebSocket relay: turn a selection into framework-aware code (reusing your components and tokens), or author frames, text, styles, variables, and whole screens back onto the canvas. 92 tools, any MCP client, no Dev Mode seat or paid tier.

Construction plan takeoff on stdio — load a plan PDF, read the title block, adopt the drawing scale (never applied silently), one-click trace rooms, and export real-world quantities (square footage, linear feet, counts) with provenance receipts. Install via NPM: `npx -y opentakeoff-mcp`

AI-powered Mermaid diagram generation with 22+ diagram types including flowcharts, sequence diagrams, class diagrams, ER diagrams, architecture diagrams, state machines, and more. Features 50+ pre-built templates, advanced layout engines, SVG/PNG/PDF exports, and seamless integration with GitHub Copilot, Claude, and any MCP-compatible client. Install via NPM: `npm install -g @narasimhaponnada/mermaid-mcp-server`

Generate beautiful Excalidraw architecture diagrams with auto-layout, architecture-aware component styling, and stateful editing. 50+ technology mappings including databases, message queues, caches, and more. No API keys required.

Agent-native UI/UX design validation: model user journeys as state machines and prove what AI-generated screens are missing (unreachable states, missing empty/loading/error states, WCAG contrast, touch targets, localization overflow) before code exists — then verify the code implements the contract. Deterministic CI gates (`uxloom check`, `uxloom audit`), one-command setup (`npx uxloom init`).

A Model Context Protocol (MCP) server for validating Mermaid diagram syntax and providing comprehensive grammar checking capabilities

Generate premium iOS mobile UI mockups (PNG + HTML) from a single text prompt. Pairs Claude (Opus 4.7 by default) with a Playwright headless renderer. Two backends — `claude` CLI (uses your Claude Code subscription) or Anthropic API. Stdio + HTTP transports, MIT.

A complete color workflow over MCP: mix (incl. Kubelka-Munk paint physics), convert formats, generate harmonies, and remember named palettes. Resolves hex, CSS, and custom brand color names, and refuses unknown colors rather than guessing. Hosted, no install: `https://rnvizion-rnv-color-mcp.hf.space/mcp`.

AI-native architecture platform for engineering teams. Describe a system in natural language (e.g. "payment service with Stripe, Kafka, PostgreSQL") → get an interactive typed diagram with 167 cloud components → export to 14 production frameworks (Java Spring Boot, Python FastAPI, Go chi, Rust Axum, .NET, Kotlin Ktor, Ruby Rails, Elixir Phoenix, Docker Compose, Terraform, Mermaid, ADR, and more). Drift detection (`sync_architecture`) scores saved diagrams against live code 0–100 with a structured diff. 9 quality-lint rules catch orphans, SPOFs, god services. Also includes a secondary persistent code-graph layer for AI coding agents (free offline via `npx tentra-mcp --local init`). Agent-as-LLM pattern — zero LLM cost on our side, zero API key on yours. 35 MCP tools. Works in Cursor, Claude Code, Codex, Windsurf.

Let your AI author Mermaid diagrams (flowchart, sequence, ER, mindmap) in a shared workspace, then read, comment on, embed, and present them at a clean URL — instead of pasting back hundreds of lines of prose. Hosted endpoint `https://mcp.diagramzu.ai/mcp` or local `npx -y @diagramzu/mcp`. 14 tools incl. diagram CRUD, version history, comments, presentation decks, and `analyze_diagram` lints.

Local-first MCP server for AI-driven network design. Creates Cisco-style network master files, L1/L2/L3 topology diagrams, combined HTML viewers, device tables, and AI Context files.

Create workflow, sequence, and architecture diagrams using FlowZap Code DSL. 7 tools for validation, playground URL generation, syntax docs, graph export, artifact parsing, diffing, and patching. No API key required. Install via NPM: `npx -y flowzap-mcp`