API & MCP

Integrate Lexplorer into Your Workflows

Two Paths to Integration

Lexplorer offers two powerful integration options for your applications: a full REST API for maximum control, and an MCP connector for seamless integration with AI assistants like Claude or Cursor.

REST API

Full control over search queries, filters, and result processing. Ideal for custom applications and complex integrations.

  • Semantic search with AI relevancy filtering
  • Flexible filters and output modes
  • Full-text and PDF retrieval

MCP Connector

Native integration for AI assistants via the Model Context Protocol. Perfect for Claude, Microsoft Copilot, your own AI tools, and other MCP-compatible clients.

  • Direct connection to legal search
  • Simple configuration
  • Ready to use out of the box

Powerful REST API

Our REST API provides programmatic access to Switzerland's most comprehensive legal search engine. With advanced AI and vector search technology, you can integrate intelligent legal research capabilities directly into your applications.

Semantic Search

Our AI-powered search understands legal concepts – not just keywords. Find relevant documents even when they use different terminology.

Comprehensive Coverage

Access over 660,000 court decisions from federal courts and all 26 cantons, complete Swiss federal law, plus partner content like ILE-HSG tax law publications. Additional sources available on request.

Flexible Integration

Three main endpoints for search, details, and documents. Choose between output modes and use granular filters by court, canton, year, and language.

AI Features

Optional AI relevancy filtering removes irrelevant results. Automatic query permutations improve recall. AI-generated summaries with citations included.

MCP Connector for AI Assistants

The Lexplorer MCP Server enables direct integration with Claude, Microsoft Copilot, custom AI solutions, and other MCP-compatible assistants. Your AI gets instant access to all Swiss case law.

Native AI Integration

Connect Claude, Microsoft Copilot, or your own AI tools directly to Lexplorer. Your AI can perform legal research without leaving the application.

Comprehensive Features

Perform legal searches, retrieve filter options, load full texts and documents – everything your AI needs for professional legal research.

Simple Setup

Simply add the MCP configuration to your client. SSE transport via mcp.lexplorer.ch/sse with API key authentication.

Who is the API for?

The Lexplorer API is designed for anyone who wants to integrate legal research into their products and workflows.

Law Firms

Integrate intelligent legal search into your internal tools, knowledge management systems, or client portals.

Legal Tech Companies

Enhance your products with semantic case law search and AI-powered analysis – without building your own infrastructure.

Legal Departments

Automate compliance checks and legal research. Integrate legal intelligence into existing enterprise systems.

Research Platforms

Give your users access to Swiss court decisions and legal literature with state-of-the-art semantic search technology.

Data Sources & Features

The Lexplorer API combines advanced vector search with legal domain expertise for precise and relevant results.

Federal & Cantonal Courts

Over 160,000 Federal Supreme Court decisions and more than 500,000 cantonal court decisions from all 26 cantons – fully searchable with semantic search.

Swiss Federal Law

All federal law articles directly searchable. Find relevant legal bases together with case law.

Partner Content & Extensions

ILE-HSG tax law publications, FTA/SSK circulars, VAT information and more. Additional content sources available on request.

Custom Databases

Make your company's own documents searchable through the same search – integrated into the API or directly usable in the Lexplorer interface.

Security & Compliance

We understand the sensitivity of legal data. Our infrastructure meets the highest security and compliance standards.

Data Sovereignty

All persistent data is stored exclusively in Switzerland. Processing takes place in Swiss and European data centers.

Zero Data Retention

LLM processing operates under a 0-Day Data Retention Policy. No storage of requests for model improvement. Fully automated processing without human-in-the-loop.

Encryption

TLS 1.2+ for all API connections. Persisted data encrypted with AES-256. Strict API key authentication.

Compliance

GDPR compliant. Designed for attorney-client privilege requirements. 99.9% uptime guaranteed.

Getting Started

Integrating Lexplorer is straightforward – whether via REST API or MCP Connector. Contact us for access and documentation.

REST API

  1. Request API access via the contact form
  2. Receive credentials and documentation
  3. Include API key as X-API-KEY header with each request
  4. Fetch available filters and perform your first search

MCP Connector

  1. Request API access via the contact form
  2. Add MCP configuration to your client
  3. Legal search, filter options, documents – all available

MCP Configuration:

{
  "mcpServers": {
    "lexplorer": {
      "url": "https://mcp.lexplorer.ch/sse",
      "transport": "sse",
      "headers": {
        "X-API-KEY": "your-api-key"
      }
    }
  }
}

Ready to Integrate?

Contact us for API access, testing options, or inquiries about custom data sources. We're happy to support you through the integration process.

Request Access