com.singsk/uml-plantuml

down checked 2026-11-12T20:37:52.624Z

Unclaimed · Unverified

Publisher-provided title

uml.singsk.com PlantUML

Publisher-provided description

Render, validate, encode/decode PlantUML diagram-as-code; 22 diagram types. Free, no auth.

Summary by lookupd

Renders, validates and encodes PlantUML diagram-as-code across 22 diagram types, with no authentication required for agents.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http uml-plantuml https://uml.singsk.com/mcp

Codex, remote (streamable-http)

codex mcp add uml-plantuml --url https://uml.singsk.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "uml-plantuml": {
      "url": "https://uml.singsk.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

render_diagram Render PlantUML source text to a diagram image. Returns a PNG image block (format "png") or the SVG markup as text (format "svg", default), plus the shareable r
validate_diagram Check PlantUML source without rendering. Returns {ok:true, diagram_type} or {ok:false, error:{code, message, line, column, source_line, hint, diagram_type_detec
encode_source Encode PlantUML source into a URL token and ready-to-use share/render URLs (svg + png). The result carries url_ok: GET URLs only work while the token is at most
decode_token Recover the PlantUML source from a token or from any PlantUML render URL (the token is extracted automatically). Tokens use PlantUML's own 64-character alphabet
list_diagram_types List the 22 supported diagram/reference types with a one-line description and the local syntax reference URL for each. Use it to pick the right @start directive
get_syntax_reference Get the syntax reference entry for one diagram type: description, a render-verified example, and the help page URL. Use it to ground diagram generation.

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/com.singsk/uml-plantuml.svg)](https://lookupd.com/servers/com.singsk/uml-plantuml)