About
Plantuml Validator — Model Context Protocol server
README
This project is an MCP server for validating Plantuml code.
🏅 Certified by MCPHub
This project is certified by MCPHub.
Tools
ValidatePlantuml
Validates the provided Plantuml message. If valid, it returns "Ok". If invalid, it returns detailed error information, including the error description, the line where the error occurred, and other metadata.

Usage with SSE

1. Run Docker Compose
Run the following command to start the server:
docker compose up -d
2. MCP Configuration in VSCode
"mcp": {
"servers": {
"my-plantuml-mcp-server": {
"type": "sse",
"url": "http://localhost:3000/sse"
}
}
}
Usage with Docker

1. Build and Publish the Container
cd plantuml-mcp-server-stdio
dotnet publish /t:PublishContainer
2. MCP Configuration in VSCode
"mcp": {
"servers": {
"my-plantuml-mcp-server-docker": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"--rm",
"-i",
"--network=host",
"kwhrkzk/plantuml-validator-mcp-server",
"PlantumlBaseUrl=http://your_plantuml_server/"
],
},
}
}
Installing Plantuml Validator
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/kwhrkzk/plantuml-validator-mcp-serverFAQ
Is Plantuml Validator MCP free?
Yes, Plantuml Validator MCP is free — one-click install via Unyly at no cost.
Does Plantuml Validator need an API key?
No, Plantuml Validator runs without API keys or environment variables.
Is Plantuml Validator hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Plantuml Validator in Claude Desktop, Claude Code or Cursor?
Open Plantuml Validator on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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