TAS/CAS Jurisprudence MCP Server

Court of Arbitration for Sport (TAS/CAS) decision search and retrieval

Overview

This MCP server provides tools to search and retrieve arbitration decisions from the Court of Arbitration for Sport (CAS/TAS). It enables Claude to research sports law precedents, anti-doping cases, and commercial sports disputes.

Available Tools

`cas_search`

Search CAS/TAS arbitration decisions by keywords, sport, year range, or procedure type.

Parameters:

query (required): Search query for case content, parties, or keywords
sport (optional): Filter by sport (e.g., "Football", "Cycling", "Athletics")
year_from (optional): Filter decisions from this year (1984-2026)
year_to (optional): Filter decisions until this year (1984-2026)
procedure_type (optional): Filter by type - "Appeal", "Ordinary", "Anti-Doping", "Advisory"
page (optional): Page number (default: 1)
page_size (optional): Results per page, max 25 (default: 10)

`cas_get_award`

Retrieve detailed information about a specific CAS/TAS award.

Parameters:

case_number (optional): CAS case number (e.g., "CAS 2023/A/9876")
url (optional): Direct URL to the award page
include_full_text (optional): Include full PDF text (default: false)

`cas_recent`

Get the most recent CAS/TAS arbitration decisions.

Parameters:

limit (optional): Maximum number of decisions (1-50, default: 10)

`cas_by_sport`

Browse CAS/TAS decisions by sport category.

Parameters:

sport (required): Sport to browse (e.g., "Football", "Cycling")
page (optional): Page number (default: 1)

Installation

# Navigate to server directory
cd mcp-servers/tas-jurisprudence

# Install dependencies
npm install

# Build TypeScript
npm run build

# Run locally
npm run dev

Deployment

Railway

This server is designed for Railway deployment with HTTP transport:

# From the tas-jurisprudence directory
railway up

Configuration:

Set custom domain: tas.bettercallclaude.ch
MCP endpoint: https://tas.bettercallclaude.ch/tas-jurisprudence/mcp

Client Configuration

Claude Desktop

For local stdio transport (not recommended for this server): ``json { "mcpServers": { "tas-jurisprudence": { "command": "node", "args": ["/path/to/mcp-servers/tas-jurisprudence/dist/index.js"] } } } ``

Remote HTTP Transport

For Railway deployment: ``json { "mcpServers": { "tas-jurisprudence": { "url": "https://tas.bettercallclaude.ch/tas-jurisprudence/mcp", "transport": "http" } } } ``

Technical Details

Architecture

Transport: Streamable HTTP (Express.js)
Scraping: Playwright for JavaScript-rendered content
Caching: In-memory LRU cache with configurable TTL
Rate Limiting: 10-second crawl delay (respects robots.txt)

Cache TTLs

Search results: 10 minutes
Award details: 30 minutes
Recent decisions: 5 minutes
Sport browse: 15 minutes

Data Sources

Main database: jurisprudence.tas-cas.org (JavaScript-rendered)
Recent decisions: tas-cas.org/en/jurisprudence/recent-decisions.html
PDF files: tas-cas.org/files/decision/

Legal Notice

CAS awards are publicly accessible, but their content is subject to copyright. This server:

Provides metadata and summaries by default
Links to official PDF sources rather than redistributing content
Respects robots.txt crawl-delay requirements
Is intended for legitimate legal research purposes

For full award redistribution, CAS permission may be required.

Development

# Run tests
npm test

# Watch mode
npm run test:watch

# Clean build artifacts
npm run clean

TAS/CAS Jurisprudence MCP Server