Multi-jurisdictional Research

Multi-jurisdictional legal research and risk assessment using the Legal Data Hunter MCP (40+ countries, 13M+ documents). Use when the user asks about law across multiple countries, comparative law, cross-border regulatory analysis, or case law/legislation in any European or other covered jurisdiction. Triggers on jurisdictional comparison, cross-border risk, multi-country compliance, GDPR enforcement across member states, or Legal Data Hunter references. Also handles single non-French jurisdiction research.

Install Legal Data Hunter

Install the Legal Data Hunter MCP server and verify the connection. Legal Data Hunter provides access to 18M+ legal documents across 110+ countries — case law, legislation, and doctrine — via hybrid semantic + keyword search.

Step 1: Detect environment and install

Check if running inside Claude Code:

which claude 2\>/dev/null

If Claude Code is available, run:

claude mcp add legal-data-hunter --transport http https://legaldatahunter.com/mcp

If not Claude Code (Cursor, VS Code, Windsurf, JetBrains, Copilot, Lawvable), run:

npx legal-data-hunter --yes

This auto-detects the client and writes the MCP config to the correct location. It supports: Cursor, VS Code, Lawvable, Windsurf, Copilot CLI, and JetBrains (Junie).

Step 2: Verify installation

After installing, confirm the MCP server is connected. In Claude Code, reconnect MCP servers and check that Legal Data Hunter appears with its tools. The server exposes 7 tools:

Tool	Purpose
`discover\_countries()`	List all 110+ indexed countries with document counts
`discover\_sources(country)`	List available sources for a country (e.g. `"FR"`, `"DE"`, `"EU"`)
`search(query, ...)`	Hybrid semantic + keyword search across jurisdictions
`resolve\_reference(citation)`	Look up a specific citation — ECLI, CELEX, article number, case number
`get\_document(id)`	Retrieve the full text of a document by ID
`get\_filters()`	List available filter options (courts, document types, date ranges)
`report\_source\_issue(...)`	Report a problem with a data source or request a new one

Step 3: Getting started

Once connected, here are useful first queries to try:

Explore coverage:

Call discover_countries() to see all indexed jurisdictions and their document counts
Call discover_sources("FR") to see French court databases, legislation sources, and doctrine

Search across jurisdictions:

search("unfair dismissal", country="DE", doc_type="case_law") — German case law on unfair dismissal
search("artificial intelligence regulation", country="EU") — EU legislation on AI
search("data protection breach notification", country="UK") — UK GDPR enforcement

Resolve specific citations:

resolve_reference("ECLI:EU:C:2014:317") — look up a CJEU decision by ECLI
resolve_reference("32016R0679") — look up the GDPR by CELEX number
resolve_reference("Article 49 TFEU") — find Treaty provisions

Retrieve full documents:

Use get_document(id) with an ID returned from search or resolve_reference to get the complete text

Tips

Natural language works: The search engine understands legal concepts, not just keywords. "Can an employer fire someone for social media posts?" works as well as "dismissal social media misconduct".
Cross-reference: Search one jurisdiction, then use the same query in another to compare legal approaches across borders.
Citation chains: Use resolve_reference() to find a law, then search() with that law's name to find all court decisions that cite it.
Filters narrow results: Call get_filters() first to see what filter options are available, then pass them to search().
Missing a source? Use report_source_issue() to request a new legal source or report a problem. New sources can be indexed in under 48 hours.