Legal Research vs Lexapi MCP

In-depth architectural comparison of the Legal Research and Lexapi MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

L

Choose Legal Research when:

• You need dedicated capabilities in the Legal domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Cross-reference resolution between laws and their delegated ordinances, Amendment tracking for Japanese laws and ministerial ordinances, Related case law lookup.

Explore Legal Research Details

Choose Lexapi MCP when:

• You need dedicated capabilities in the Legal domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Freemium).
• You have access to required keys: LEXAPI_API_KEY, LEXAPI_BASE_URL.
• Primary tools included: lex_search, lex_get_document, lex_get_metadata.

Feature & Specification Comparison

Specification	L Legal Research Legal	Lexapi MCP Lex-API Legal
Summary	日本の政省令・法令の参照解決と改正調査を行うMCP（条文・委任先・裁判例・通達）	EU legal research over EUR-Lex — 10 tools for structured search, CELEX/URL document fetch, recent Official Journal publications, inbound/outbound citation graph, and semantic search over case law + legislation. FREE tier available; semantic tools require a paid plan. Install: npx -y @lexapi/mcp.
Category & Scope	Legal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "legal-research": {
      "url": "https://seishorei-wakarukun.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "lex-api-lexapi-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@lexapi/mcp"
      ],
      "env": {
        "LEXAPI_API_KEY": "YOUR_LEXAPI_API_KEY_HERE",
        "LEXAPI_BASE_URL": "YOUR_LEXAPI_BASE_URL_HERE"
      }
    }
  }
}

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