PlantUML MCP Server

Converts PlantUML snippets into shareable diagrams with support for capability landscapes, business scenarios, and ArchiMate diagrams. Supports HTTP, SSE, and STDIO transports for integration with Claude Desktop, Flowise, and other MCP-compatible runtimes.

→ sysam68/plantuml-mcp-server · listed on glama

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

⚠️

Known vulnerabilities in dependencies: 3 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: MCP_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configGENERATED_FILES_DIR— ☁️ Optional shared storage export ( + PUBLIC_FILE_BASE_URL)

configLOG_LEVEL— info emergency → debug supported

🔐 secretMCP_API_KEY— 🔒 Optional Bearer authentication via

configMCP_HOST— / MCP_PORT 0.0.0.0 / 3000 Bind address + port (HTTP/SSE)

configMCP_HTTP_ENABLE_JSON_RESPONSES— false Return JSON body when true (for debugging)

configMCP_HTTP_PATH— /mcp HTTP JSON-RPC endpoint

configMCP_PORT— MCP_HOST / 0.0.0.0 / 3000 Bind address + port (HTTP/SSE)

configMCP_SSE_MESSAGES_PATH— /messages \

configMCP_SSE_PATH— /sse SSE stream endpoint

configMCP_TRANSPORT— HTTP (default) Direct REST-style integration, reverse proxies, health checks =http node dist/plantuml-mcp-server.js

configPLANTUML_MCP_SKIP_AUTO_START— unset When true, skips auto-start so scripts can import the server class without launching transports

configPLANTUML_SERVER_URL— Override environment variables (, MCP_API_KEY, etc.) as needed.

configPUBLIC_FILE_BASE_URL— ☁️ Optional shared storage export (GENERATED_FILES_DIR + )

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/sysam68-plantuml-mcp-server-1ea6cd)](https://m8ven.ai/mcp/sysam68-plantuml-mcp-server-1ea6cd)

commit: e71f140c0a14fac0c811bdba6914c072b949c32a

code hash: f4337848ab8d3df2676cbe4e0eb4608edd060ec3a270a9febe15b72e35dfe2df

verified: 4/18/2026, 6:55:45 PM

view raw JSON →