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MCP servers for diagrams in Claude Code

150 MCP servers for diagrams in the catalog list Claude Code as a supported host. These are the 15 that rank highest, ordered by adoption, freshness and documentation. GitDiagram, Next AI Draw.io and TerraVision lead the list. 15 of them have an install command written for Claude Code; the rest use the generic setup below. Claude Code reads them from ~/.claude.json (just you), or .mcp.json in the project when you add --scope project. Give an MCP server only the access it needs, and read its repository before you connect it to your data. Every listing links to its source and shows a freshness grade.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

How to install in Claude Code

claude mcp add <name> -- npx -y <package>
claude mcp add --transport http <name> <https://server-url>

Where it goes: ~/.claude.json (just you), or .mcp.json in the project when you add --scope project.

Put -- between the name and the server command so the command's own flags are not read as Claude's. --env takes several KEY=value pairs, so another option has to sit between the last --env and the name (the CLI otherwise reads the name as a pair). --scope user makes the server available in every project; the default scope (local) keeps it to you in this project. Run /mcp inside Claude Code, or claude mcp list, to check it is connected.

Each listing page has the exact command for that listing.

Top 15 of 150

  1. 1
    GitDiagram

    gitdiagram.comOfficial

    Architecture diagrams, explanations and Mermaid source for public GitHub repositories.

    • Published by the vendor
    • 18.4K GitHub stars
    • One-line install for Claude Code

    ★ 18.4KLast active Oct 23, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  2. 2
    Next AI Draw.io

    DayuanJiang

    draw.io diagrams your AI agent draws on a live browser canvas that you can also edit by hand

    • Most GitHub stars here (36,395)
    • Most weekly downloads here (19.6K)
    • One-line install for Claude Code

    ★ 36.4K↓ 19.6K/wkLast active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  3. 3
    TerraVision

    patrickchugh

    Draw cloud architecture diagrams with official AWS, Azure and GCP icons from a prompt or Terraform.

    • 1.7K GitHub stars
    • One-line install for Claude Code
    • Active in the last 30 days

    ★ 1.7K↓ 1.6K/wkLast active Oct 23, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  4. 4
    draw.io

    draw.ioOfficial

    Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive.

    • Published by the vendor
    • 5.7K GitHub stars
    • One-line install for Claude Code

    ★ 5.7KLast active Oct 24, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  5. 5
    Openflowkit MCP

    openflowkit

    Architecture diagrams for your agent: draw on the live OpenFlowKit canvas or edit diagram files.

    • One-line install for Claude Code
    • Active in the last 30 days
    • Open source (MIT)

    ★ 908Last active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  6. 6
    Openflowkit MCP

    Vrun-design

    Architecture diagrams for your agent: draw on the live OpenFlowKit canvas or edit diagram files.

    • One-line install for Claude Code
    • Active in the last 30 days
    • Open source (MIT)

    ★ 906Last active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  7. 7
    Agent-Native Plan

    BuilderIO

    Structured visual plans and PR recaps with diagrams, prototypes, annotations, and sharing

    • 7.5K GitHub stars
    • One-line install for Claude Code
    • Remote server, no local install

    ★ 7.5KLast active Oct 24, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  8. 8
    Smart Drawio

    yunshenwuchuxun

    Generate, validate, repair and style editable draw.io XML diagrams.

    • One-line install for Claude Code
    • Active in the last 30 days
    • Open source (MIT)

    ★ 366Last active Oct 14, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  9. 9
    VisualTorch

    willyfh

    Render PyTorch architecture diagrams and animated GIF reveals from trusted model source.

    • One-line install for Claude Code
    • Active in the last 30 days
    • Open source (MIT)

    ★ 341↓ 578/wkLast active Oct 16, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  10. 10
    PaperBanana

    llmsresearch

    Generate academic diagrams and statistical plots from text using multi-agent AI.

    • 2.4K GitHub stars
    • One-line install for Claude Code
    • Open source (MIT)

    ★ 2.4K↓ 1.2K/wkLast active Sep 17, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  11. 11
    Miro

    miroappOfficial

    Official Miro MCP server - Supports context to code and creating diagrams, docs, and data tables.

    • Published by the vendor
    • One-line install for Claude Code
    • Remote server, no local install

    ★ 163Last active Sep 17, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  12. 12
    Excalidraw Architect

    BV-Venky

    Generate beautiful Excalidraw architecture diagrams with auto-layout and component styling

    • One-line install for Claude Code
    • Open source (MIT)

    ★ 160↓ 484/wkLast active Aug 25, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  13. 13
    Codex Tldraw MCP

    jananadiw

    A Codex stdio MCP server that generates repo-local tldraw diagrams and detects code graph drift.

    • One-line install for Claude Code
    • Active in the last 30 days
    • Open source (MIT)

    ★ 25Last active Oct 14, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  14. 14
    Whimsical

    whimsical.comOfficial

    Create and edit flowcharts, mind maps, wireframes, and docs in Whimsical, or search your workspace.

    • Published by the vendor
    • One-line install for Claude Code
    • Remote server, no local install

    ★ 11Last active Oct 14, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  15. 15
    livediagram

    livediagram-app

    Create, edit, share and render real-time collaborative diagrams and mindmaps on livediagram.app.

    • One-line install for Claude Code
    • Remote server, no local install
    • Active in the last 30 days

    ★ 9Last active Oct 19, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

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