"A tool for writing product manuals" matching MCP servers:

• product-spec-mcp

  georgelue0321-vibe

  A

  license

  A

  quality

  A

  maintenance

  Prevents premature AI coding by transforming vague product ideas into structured specifications, architecture decisions, and acceptance criteria through a series of interrogation and compilation tools.

  Last updated 2026-06-28

  7

  70

  MIT

• Architect-to-Product (A2P)

  BernhardJackiewicz

  A

  license

  -

  quality

  C

  maintenance

  An MCP server that adds engineering discipline to AI-assisted development, enforcing evidence-gated TDD, security review, backup strategy, and deployment generation to turn AI-generated code into production-ready software.

  Last updated 2026-07-12

  21

  10

  MIT

• MCP Server for CAD

  Eklavvyaaaaa

  F

  license

  -

  quality

  D

  maintenance

  Translates natural language commands into structured geometric operations for a simulated CAD engine using LLMs. It enables users to create shapes, modify dimensions, and perform 3D operations like extrusion through the Model Context Protocol.

  Last updated 2026-03-27

• MATLAB MCP Tool

  neuromechanist

  A

  license

  -

  quality

  D

  maintenance

  Enables interactive MATLAB development by allowing users to execute scripts and specific code sections, manage workspace variables, and capture generated plots. It integrates with the MATLAB Python Engine to provide persistent execution context for MCP-compatible clients.

  Last updated 2026-03-02

  18

  BSD 3-Clause

• Universal Spec Architect

  ahmedelpannann

  F

  license

  -

  quality

  D

  maintenance

  Enforces a rigorous spec-driven engineering workflow for AI coding assistants, requiring requirements, design, and task planning before any code is written.

  Last updated 2026-03-17

• EDS Block Analyser MCP Server

  kalimuthu-a

  A

  license

  -

  quality

  C

  maintenance

  Provides UI architecture analysis for converting Figma designs or web pages into reusable UI code blocks with effort estimation in CSV format.

  Last updated 2025-08-04

  9

  1

  MIT

• flowgraf

  abhishek-genailytics

  A

  license

  A

  quality

  B

  maintenance

  AI-native architecture diagramming for MCP clients (Claude Code, Cursor, Windsurf). The calling agent authors the graph (nodes, groups, edges); Flowgraf validates it, lays it out deterministically with ELK, renders an SVG + Mermaid, and returns a link to a live, editable canvas you can refine by chat, drag, or one-click AI design review. Agent-authored ops — no API key and no LLM cost to the calle

  Last updated 2026-07-14

  3

  492

  MIT

• draftlytic-mcp

  rbsoftwaresystems

  A

  license

  A

  quality

  B

  maintenance

  An MCP server that turns a rough project idea into a structured spec, running entirely locally inside any MCP-compatible editor.

  Last updated 2026-07-08

  4

  410

  MIT

• gemini-researcher

  capyBearista

  A

  license

  A

  quality

  F

  maintenance

  A research proxy that lets Claude, Cursor, and other MCP clients utilize Gemini's generous free tier for deep codebase analysis without burning your main model's quota!

  Last updated 2026-06-01

  6

  108

  Mozilla Public 2.0

• constraints-registry-mcp

  SureshKhemka

  A

  license

  A

  quality

  A

  maintenance

  A single, queryable source of engineering constraints that coding agents consult at code-generation time, exposed over an MCP server.

  Last updated 2026-06-27

  3

  Apache 2.0

• Canvas-MCP

  jdlongmire

  F

  license

  A

  quality

  D

  maintenance

  Render hierarchical system diagrams as PNGs from YAML definitions using a four-level ontology of networks, factories, machines, and nodes.

  Last updated 2026-02-09

  4

• mcp-architect

  kannajune

  A

  license

  A

  quality

  A

  maintenance

  Stop pasting your file tree into Claude. Give any AI assistant real architectural understanding of a codebase — local, private, zero‑config.

  Last updated 2026-06-18

  5

  3

  MIT

• DiagramZu

  yenchieh

  A

  license

  A

  quality

  B

  maintenance

  diagramzu-mcp lets an AI client (Claude, Cursor, ChatGPT, etc.) author Mermaid diagrams in a shared workspace that a team can read, comment on, embed, and present at a clean URL — rather than just generating a one-off diagram. Hosted endpoint https://mcp.diagramzu.ai/mcp or local npx -y @diagramzu/mcp. Also listed in the official MCP registry as ai.diagramzu/mcp.

  Last updated 2026-06-18

  14

  20

  1

  MIT

• Archy

  hslee16

  A

  license

  A

  quality

  B

  maintenance

  Architectural sensor for Python codebases. Scores structural health (modularity, acyclicity, depth, equality), detects import cycles, enforces YAML layer rules, and runs a snapshot/diff loop so AI-assisted edits do not silently regress structure.

  Last updated 2026-07-25

  13

  6

  MIT

• Excalidraw MCP Server

  Scofieldfree

  A

  license

  A

  quality

  D

  maintenance

  Enables AI agents to programmatically generate, edit, and view Excalidraw diagrams with real-time browser synchronization. It provides a suite of tools for adding shapes, text, and arrows to diagrams through natural language interactions.

  Last updated 2026-02-09

  11

  1,559

  97

  MIT

• stack-advisor

  officechbusinessservices-creator

  A

  license

  A

  quality

  C

  maintenance

  An MCP server that recommends tech stacks for your project. Describe what you're building and get a recommended stack with reasoning, tradeoffs, and what each layer should use.

  Last updated 2026-06-18

  2

  10

  MIT

• VC_replan-mcp

  VCnoC

  A

  license

  A

  quality

  D

  maintenance

  Enables multi-dimensional architecture review of technical solutions with web intelligence and knowledge base auto-sedimentation, acting as a logical security gateway for Claude Code.

  Last updated 2026-03-03

  2

  MIT

• UnrealEngine Bridge

  JosephOIbrahim

  A

  license

  A

  quality

  B

  maintenance

  A comprehensive bridge connecting AI agents to Unreal Engine 5.7 through 39 MCP tools for scene manipulation, asset management, and blueprint control. It enables real-time perception and editor automation using the Remote Control API and file-based protocols.

  Last updated 2026-07-08

  25

  2

  MIT

• Specky

  paulasilvatech

  A

  license

  A

  quality

  A

  maintenance

  An MCP server for Spec-Driven Development that transforms natural language ideas and meeting transcripts into structured, production-grade specifications using EARS notation. It automates a 7-phase pipeline to generate project artifacts like requirements, architecture designs, and task lists directly to disk.

  Last updated 2026-07-24

  58

  949

  15

  MIT

• claude-monet-mcp

  yahavf6

  A

  license

  A

  quality

  D

  maintenance

  A lightweight sketch canvas that lets users draw ideas and sync them in real-time to AI via MCP, enabling visual communication without exports.

  Last updated 2026-01-11

  2

  5

  13

  MIT