Developer Tools

singsk.com

MCP server for PlantUML diagram rendering and validation, providing encoding, decoding, and supported diagram types.

1 endpoint6 known toolsFirst detected August 30, 2026Last detected August 30, 2026

ENDPOINT 1

https://uml.singsk.com/mcp

No auth detected

MCP server metadata

Name: uml-singsk-plantuml
Version: 1.1.0.2

Capabilities

tools

Server instructions

PlantUML diagram-as-code service. Workflow: list_diagram_types / get_syntax_reference to ground the syntax -> validate_diagram (fix using error.line/hint) -> render_diagram. Tokens use PlantUML's own 64-character alphabet ("0-9 A-Z a-z - _") over raw DEFLATE. This is NOT base64 - never encode or decode tokens with a base64 codec; use encode_source / decode_token. Discovery: https://uml.singsk.com/api/ ; OpenAPI: https://uml.singsk.com/api/openapi.json

Known tools 6

render_diagram

Render PlantUML source text to a diagram image.

Inferred read-only

validate_diagram

Check PlantUML source without rendering.

Inferred read-only

encode_source

Encode PlantUML source into a URL token and ready-to-use share/render URLs (svg + png).

Inferred read-only

decode_token

Recover the PlantUML source from a token or from any PlantUML render URL (the token is extracted automatically).

Inferred read-only

list_diagram_types

List the 22 supported diagram/reference types with a one-line description and the local syntax reference URL for each.

Inferred read-only

get_syntax_reference

Get the syntax reference entry for one diagram type: description, a render-verified example, and the help page URL.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.uml-singsk-plantuml]
url = "https://uml.singsk.com/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: uml-singsk-plantuml
Remote MCP URL: https://uml.singsk.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "uml-singsk-plantuml": {
      "type": "http",
      "url": "https://uml.singsk.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "uml-singsk-plantuml",
  "transport": "streamable-http",
  "url": "https://uml.singsk.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.