What is plantuml_web?
plantuml_web is a MCP server by 2niuhe that web-based PlantUML frontend with PlantUML image generation and syntax validation. It is listed under Other and has 15 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | 2niuhe |
| Repository | 2niuhe/plantuml_web |
| Popularity | 15 GitHub stars |
| Category | Other |
| Security | Low risk (84/100) |
| Rank | #1,500 of 4,418 MCP servers; #236 in Other |
| License | Apache-2.0 |
| Last commit | 2025-08-21 |
| Runs | Locally and in the cloud |
| Language | Python |
| Platforms | macOS, Windows, Linux |
Is plantuml_web safe to install?
plantuml_web scores 84/100 on the MCPMods security check: Low risk. Things to review: sends your data to a cloud service. It passed 4 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install plantuml_web?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/2niuhe/plantuml_web
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add plantuml-web -- <command from README> claude mcp add --transport http plantuml-web <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs plantuml_web for you:
Add the "plantuml_web" MCP server from https://github.com/2niuhe/plantuml_web to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.