Dgmo MCP

Turn a conversation into a real diagram - without leaving your AI tool. This MCP server gives Claude (and any MCP-compatible AI tool) the ability to render sequence diagrams, flowcharts, ER diagrams, C4 architecture, gantt charts, and 40+ other chart types from concise text markup - then hand the result off to a full editor for refinement. Ask for a diagram in chat; get a real one back. Its 11 documented tools cover diagram, chart, app.

People connecting browser automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 3 · #42 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Dgmo MCP

before you install - you'll need

MCP_TRANSPORT

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add diagrammo-dgmo-mcp -- npx -y @diagrammo/dgmo-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "diagrammo-dgmo-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@diagrammo/dgmo-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @diagrammo/dgmo-mcp - published under the repo owner's npm scope (@diagrammo)

registry namespace io.github.diagrammo is GitHub-verified and matches the repo owner

03 · What Dgmo MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can check markup and report parse errors, without rendering, list all supported chart types, marking the beta ones, fetch worked examples for a chart type, and get a shareable diagrammo.app URL - hand your diagram to the web editor.

Capability map

Tools grouped from the project's README - what Dgmo MCP lets an agent do.

read & search

3 tools - e.g. List all supported chart types, marking the beta ones; Get DGMO syntax documentation for accurate generation; Fetch worked examples for a chart type

list_chart_types · get_language_reference · get_examples

Render

1 tool - e.g. Render DGMO markup to SVG or PNG

render_diagram

Validate

1 tool - e.g. Check markup and report parse errors, without rendering

validate_diagram

Suggest

1 tool - e.g. Suggest the chart types that fit a description

suggest_chart_type

1 tool - e.g. Get a shareable diagrammo.app URL - hand your diagram to the web editor

share_diagram

Open

1 tool - e.g. Open the diagram straight into the Diagrammo desktop app for editing

open_in_app

Check

1 tool - e.g. Report whether the desktop app is installed

check_app_installed

Preview

1 tool - e.g. Render one or more diagrams and open an HTML preview in the browser

preview_diagram

Latest releases

v0.28.3 · 2026-08-24

v0.28.1 · 2026-08-20

v0.28.0 · 2026-08-18

04 · Who maintains Dgmo MCP

dgmo-mcp is maintained by diagrammo. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/diagrammo/dgmo-mcp
category: browser automation - ranked #42 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-24)
registry: io.github.diagrammo/dgmo-mcp (active, first published 2026-03-01 · 28 versions)
packages: npm:@diagrammo/dgmo-mcp

06 · Dgmo MCP FAQ

Is Dgmo MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

What can Dgmo MCP do?

How do I install Dgmo MCP?

Run `npx -y @diagrammo/dgmo-mcp`. The README documents one environment variable (MCP_TRANSPORT) to set first. You can also paste the ready-made client config above.

Does Dgmo MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Dgmo MCP

Alternatives to Dgmo MCP

Maintained browser automation servers if Dgmo MCP isn't the fit.

Pairs well with

Servers that cover what Dgmo MCP doesn't - only shown when the pairing reason fits the companion.

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