Mermaid MCP Server
A Model Context Protocol (MCP) server that converts Mermaid diagrams to PNG images
context tax
pending
security
87/100
cold start
pending
freshness
Abandoned16mo ago
Our reading of Mermaid, from the data
Mermaid is a images, video & audio MCP server from peng-shawn.
We haven't measured its tool list yet, so its token cost is unknown.
It looks abandoned: the newest commit, release or package publish we found was 16 months ago (2025-06-21). For comparison, 73% of images, video & audio servers are active or maintained.
With 235 GitHub stars it ranks #65 of 2,354 images, video & audio servers we index.
It runs locally on your machine over stdio.
Install Mermaid MCP server
Install in Claude Code
claude mcp add mermaid-peng-shawn -- npx -y @peng-shawn/mermaid-mcp-serverInstall in Cursor
{
"mcpServers": {
"mermaid-peng-shawn": {
"command": "npx",
"args": [
"-y",
"@peng-shawn/mermaid-mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"mermaid-peng-shawn": {
"command": "npx",
"args": [
"-y",
"@peng-shawn/mermaid-mcp-server"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"mermaid-peng-shawn": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@peng-shawn/mermaid-mcp-server"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"mermaid-peng-shawn": {
"command": "npx",
"args": [
"-y",
"@peng-shawn/mermaid-mcp-server"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Security signals
87/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.
Deductions
- No commits in over 12 months-10
- No security policy (SECURITY.md)-3
Checks
- ✓Repository hygiene (archived, activity, license, security policy)
- ○Package metadata (install scripts, provenance) — pending
- ○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
- ○Source scan (secrets, CVEs, risky code) by vectra-guard — pending
Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules
Freshness
Abandoned — last maintenance signal 16mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2025-06-21 · 16mo ago · GitHub
Latest release
2025-03-06 · 20mo ago · GitHub · v0.1.1
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry
How it compares in Images, Video & Audio
Against the most-starred images, video & audio servers we index. Token cost is per model turn, measured from each server's live tool list.
| Server | Stars | Tools | Tokens / turn | Freshness | Runs |
|---|---|---|---|---|---|
| Mermaid (this) | 235 | — | not measured | Abandoned | local |
| Screenpipe | 21,982 | — | not measured | Active | — |
| screenpipe | 21,982 | — | not measured | Active | local |
| FunASR | 20,748 | — | not measured | Active | local |
| Agent-Native Analytics | 7,433 | — | not measured | Active | hosted |
| Remove AI Watermarks | 6,054 | — | not measured | Active | local |
FAQ
›How do I install the Mermaid MCP server in Claude Code?
Run: claude mcp add mermaid-peng-shawn -- npx -y @peng-shawn/mermaid-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Mermaid require an API key?
No required environment variables are declared in its published metadata.
›Can I use Mermaid as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Mermaid in the official MCP registry?
No. It was indexed from npm.
Sources and method
- GitHub repository
- fetched 2026-10-19
- Package registry (npm / PyPI)
- listed
- Security signals, computed by us
- 2026-10-19
- Last checked against all sources
- 2026-10-19
The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.
Alternatives to Mermaid
Other images, video & audio MCP servers.
ScreenpipeActiveLocal screen and audio capture with timestamped indexing, SQL and embedding storage, semantic search, history analysis and event-triggered actions.
screenpipeActiveSearch your local screen recordings, audio transcripts, and computer activity from screenpipe.
FunASRActiveTranscribe local audio with FunASR and SenseVoice using private, on-device inference.
Agent-Native AnalyticsActiveDigital asset manager - upload, organize, search, and generate on-brand images and videos
Remove AI WatermarksActiveIdentify and remove AI watermarks and provenance metadata from your own images and video.
YouTubeSlowingMCP server for progressive tool usage at any scale (see https://klavis.ai)