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Agentic Mermaid MCP server

online · 100% uptime
by adewale·io.github.adewale/agentic-mermaid·v0.5.6·62 stars
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Render, verify, describe, and safely edit Mermaid diagrams through MCP.

B76/100grade B
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B76/100

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Adoption
Established

62 stars126 downloads/wk

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Agentic Mermaid tools

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How Agentic Mermaid compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
76/100
higher than 48% of 48,255 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
466 ms
faster than 32% of 30,031 servers
GitHub stars
62
more than 95% of 28,688 servers
Downloads a week
126
more than 68% of 12,191 servers with a package

Release history: 5 versions in the registry since 2026-07-31, latest 2026-11-02, typically one every 2 days.

Install Agentic Mermaid in Claude Code, Cursor or VS Code

claude mcp add --transport http agentic-mermaid https://agentic-mermaid.dev/mcp
Add to Cursor

What the publisher says

From the Agentic Mermaid repository's README, as published. We do not edit it. Read it on GitHub

Agentic Mermaid

Beautiful diagrams, made with your agent.

Agentic Mermaid is an open-source Mermaid toolkit for people who want AI agents to create diagrams that look finished: SVG and PNG renders, ASCII and Unicode for review, deterministic layout, and Style + Palette controls for brand colors, typography, strokes, fills, and backdrops.

It is forked from lukilabs/beautiful-mermaid. Published on npm as agentic-mermaid; the GitHub repository is adewale/agentic-mermaid; the canonical live site is agentic-mermaid.dev, a Cloudflare Workers deployment.

Live Demo & Samples · Live Editor

Docs: docs index · getting started · agent guide · agent API cookbook · design system · skills · fork differences · vs Mermaid & Beautiful Mermaid · changelog

Why Agentic Mermaid

Use it when you want to describe a diagram in plain language and get back something you can publish without a design cleanup pass.

The agent workflow is the guardrail behind the polish: agents should not guess from pixels, concatenate strings, or regenerate whole diagrams when a structured edit is available.

Highlights

  • Descriptor-registered diagram families — built-ins and namespaced extensions share one discovery and capability contract.
  • SVG, PNG, ASCII, Unicode, JSON — one resolved request with explicit graphical, terminal, and positioned-layout projections.
  • Synchronous, zero-DOM SVG renderer — no Puppeteer, no browser flash.
  • Composable styles — { style: ['hand-drawn', 'dracula'] } stacks a look over a palette; discoverable full looks cover sketch, watercolor, blueprint, accessibility, print, operational, physical-media, architecture, and editorial/report use cases. Custom styles are plain JSON records any agent can author (docs/style-authoring.md). seed re-rolls the ink, never the layout.
  • Discoverable palettes + Shiki compatibility — a theme is a palette-only style: discover the canonical catalog at runtime, theme from two colors, or adapt a VS Code theme.
  • Agent-native editing — typed mutation for every registered renderable family; source-level round-trip only for opaque fallbacks containing unmodeled syntax.
  • CLI + MCP + library — am, agentic-mermaid-mcp, agentic-mermaid, agentic-mermaid/agent, and the browser/workerd-safe agentic-mermaid/agent/core. Audit reports and trusted host-resource helpers remain repository tooling instead of published runtime entry points.

Installation

npm install agentic-mermaid       # or: bun add agentic-mermaid / pnpm add agentic-mermaid
npx --no-install agentic-mermaid --help
npx --no-install agentic-mermaid mcp

For repository development, install from source and run the Bun entrypoints:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Agentic Mermaid: common questions

Is Agentic Mermaid MCP server safe?
Mostly: it is graded B (76/100). Read the Agentic Mermaid safety report
How do I install Agentic Mermaid?
It runs remotely at agentic-mermaid.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Agentic Mermaid need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Agentic Mermaid maintained?
The last commit was 41 days ago (2026-09-24). The latest release is v0.5.6.
Is Agentic Mermaid up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Agentic Mermaid?
Servers from other publishers that do the same job: draw.io MCP server.
How does Agentic Mermaid compare with other MCP servers?
safety score 76/100 (higher than 48% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 466 ms (faster than 32% of 30,031 servers). Full comparison.

Alternatives to Agentic Mermaid

Same job from other publishers: the closest match first, then the best rated.

  • draw.io
    Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.
    B