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Lithuania Legal Research MCP Server (lt-legal-mcp)

Model Context Protocol (MCP) server providing direct, read-only access to Lithuania (LT) legislation, multi-tier judicial decisions (First Instance, Regional/Cantonal/Appellate, and Supreme/Constitutional courts), and statutory citation verification for Claude Desktop, Cursor, and Antigravity.


Quick Desktop Setup (No Command Line Required)

This package includes a graphical installer for legal practitioners who prefer not to use terminal commands or edit JSON configuration files manually.

  1. Download: Click <> Code at the top right of this repository, select Download ZIP, and extract the folder to your computer.

  2. Run the Setup Utility:

    • Windows: Double-click Click_Here_To_Install_Windows.bat

    • macOS: Double-click Click_Here_To_Install_Mac.command

  3. Connect: Click Install & Connect Automatically in the setup window and restart Claude Desktop.

System Integrity Note: The setup utility operates strictly in read-only mode with respect to your personal files and documents. It installs an isolated Python environment inside the extracted folder and registers the server entry in your AI client configuration.


Related MCP server: TAAP MCP

Multi-Tier Judicial Hierarchy & Official Sources

This server indexes and queries decisions across the full judicial hierarchy of Lithuania, allowing practitioners to filter research by procedural stage:

Judicial Tier

Covered Courts & Tribunals

Tier 1 — First Instance

12 Apylinkės teismai (District Courts) & 2 Regionų administraciniai teismai

Tier 2 — Regional / Cantonal / Appellate

5 Apygardos teismai (Regional Courts: Vilnius, Kaunas, Klaipėda, Šiauliai, Panevėžys) & Lietuvos apeliacinis teismas (Court of Appeal of Lithuania)

Tier 3 — Supreme & Constitutional

Lietuvos Aukščiausiasis Teismas (LAT), Lietuvos vyriausiasis administracinis teismas (LVAT) & Konstitucinis Teismas

  • National Legislation Registry: Teisės aktų registras (e-tar.lt Open API) (https://www.e-tar.lt)

  • Multi-Tier Case Law Database: LITEKO Vieša teismų sprendimų paieška (liteko.teismai.lt — All District, Regional, Appellate & Supreme Courts) (https://liteko.teismai.lt/viesasprendimupaieska/)

  • Supported Citation Format Example: ECLI:LT:LAT:2024:e3K300124 or TAR

Indexed Court & Regional Sub-Portals

Sub-Portal Identifier (sub_court)

Official Endpoint / Registry

liteko_all_tiers

https://liteko.teismai.lt/viesasprendimupaieska/


Available MCP Tools

Tool

Description

search_legislation

Searches enacted statutes, codes, decrees, and official gazette publications in Lithuania.

search_case_law

Searches national jurisprudence and European/ECLI-linked judgments for Lithuania.

search_tiered_court_decisions

Filters case law specifically by judicial instance (first_instance, appellate_regional, supreme_constitutional) or regional/cantonal court key (sub_court).

list_court_hierarchy

Returns the complete 3-tier court structure and registered sub-portal endpoints for Lithuania.

get_legal_document_markdown

Retrieves full statutory or judicial texts and converts them into clean Markdown.

verify_citation

Validates statutory and case law citations against official registries.


{
  "mcpServers": {
    "lt-legal-mcp": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/jurisatlas/lt-legal-mcp",
        "lt-legal-mcp"
      ]
    }
  }
}

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