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Diagrams MCP Server

by mohammad-emad-dev·io.github.mohammad-emad-dev/diagrams-mcp-server·v0.5.2
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Local-first MCP server for PlantUML and Mermaid diagrams with drift detection.

A92/100grade A
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Safety scan
A92/100

full report

Adoption
Growing

1 stars319 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Diagrams MCP Server tools (7, 3 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • diagrams_check_consistency
  • diagrams_createwrite action
  • diagrams_deletewrite action
  • diagrams_get
  • diagrams_list
  • diagrams_render
  • diagrams_updatewrite action

Public scan report

scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it

no findings
  • Code scan18 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 2 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

Runs npx -y diagrams-mcp-server on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add diagrams-mcp-server -- npx -y diagrams-mcp-server
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Diagrams MCP Server: common questions

Is Diagrams MCP Server safe?
Yes, by our scan: it is graded A (92/100). Read the Diagrams MCP Server safety report
How do I install Diagrams MCP Server?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Diagrams MCP Server need an API key?
No secret keys are declared. It reads 5 settings from the environment.
Is Diagrams MCP Server maintained?
The last commit was 3 days ago (2026-09-18). The latest release is v0.5.2.
What can I use instead of Diagrams MCP Server?
Servers from other publishers that do the same job: Prism Coder MCP server and DocGuard MCP server.

Alternatives to Diagrams MCP Server

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

  • Prism Coder
    Session memory for coding agents: local-first recall, drift detection, on-device inference.
    C
  • DocGuard
    Deterministic doc-drift detection: guard, score, explain, verify-claims and diagnose MCP tools.
    A

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