get_law

Return law metadata and normalized norm summaries for a law code or alias.

Parameters

Name	Type	Required	Description
code	string	yes	Law abbreviation (e.g. bgb) or a known alias (e.g. BGB). Case-insensitive.

Returns

An object with law metadata and a list of norm summaries:

{
  code: string;
  title: string;
  jurisdiction: string;
  source_url: string;
  provenance: {
    fetch_timestamp: string;  // ISO 8601
    content_hash: string;     // SHA-256 hex
  };
  norms: Array<{
    norm: string;       // canonical norm path, e.g. "par:242"
    heading: string;    // norm heading / title
    text_preview: string;  // first 200 characters of normalized text
  }>;
}

Example

result = mcp_client.call_tool("get_law", {"code": "bgb"})

{
  "code": "bgb",
  "title": "Bürgerliches Gesetzbuch",
  "jurisdiction": "federal",
  "source_url": "https://www.gesetze-im-internet.de/bgb/",
  "provenance": {
    "fetch_timestamp": "2026-05-15T10:23:00Z",
    "content_hash": "sha256:abc123..."
  },
  "norms": [
    {
      "norm": "par:242",
      "heading": "Leistung nach Treu und Glauben",
      "text_preview": "Der Schuldner ist verpflichtet, die Leistung so zu bewirken..."
    }
  ]
}

Notes

• Code lookup is case-insensitive.
• Known aliases (e.g. BGB → bgb, DSGVO → dsgvo) are resolved automatically.
• Returns a structured error if the code is not found.

Related

• get_norm — fetch full text for a single norm.
• list_laws — discover available law codes.

Source

mcp/server.py — @app.tool() definition for get_law.