AI Plugin Index
MCP Js
Verified · npm:@plantumlMCP server by plantuml · updated · ★ 13k · 241 downloads a week
Pure Node/JS Model Context Protocol (MCP) server for PlantUML, powered by the TeaVM-compiled engine. No Java runtime required. MCP Js is published by npm:@plantuml from its verified domain in the official MCP Registry.
Last commit in the past day
LGPL-3.0: copyleft, check the terms before using it in a product
Clear description, published package or server URL, 13,375 stars, original repository
Not checked yet. What we check
Install MCP Js
Built from the published package, never by AIclaude mcp add mcp-js -- npx -y @plantuml/mcp-jsRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"mcp-js": {
"command": "npx",
"args": [
"-y",
"@plantuml/mcp-js"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"mcp-js": {
"command": "npx",
"args": [
"-y",
"@plantuml/mcp-js"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"mcp-js": {
"command": "npx",
"args": [
"-y",
"@plantuml/mcp-js"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add mcp-js -- npx -y @plantuml/mcp-js{
"mcpServers": {
"mcp-js": {
"command": "npx",
"args": [
"-y",
"@plantuml/mcp-js"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add mcp-js npx -y @plantuml/mcp-jsGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the mcp-js block.
Alternatives to MCP Js
All alternatives →
Mock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP.
XcodeBuildMCP provides tools for Xcode project management, simulator management, and app utilities.
Codebase intelligence for AI coding agents — graph, git history, docs, decisions, code health.
MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J.
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
MCP server for mobile app automation: verify, control, and debug iOS, Android, TV, and desktop apps
MCP Js: common questions
How do I install MCP Js?
In Claude Code run claude mcp add mcp-js -- npx -y @plantuml/mcp-js. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is MCP Js the official server?
MCP Js is published by npm:@plantuml from its verified domain in the official MCP Registry.
Is MCP Js free?
The code is published under the LGPL-3.0 licence. The service it connects to may have its own pricing.
Is MCP Js safe to use?
It scores 92 of 100. Grades: maintenance A, licence C, quality A. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to MCP Js?
Similar MCP servers: mockserver, XcodeBuildMCP, Repowise, SmartBear MCP.
Does MCP Js work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.