Token Bowl MCP Server

A Model Context Protocol (MCP) server for the Token Bowl fantasy football league, built with FastMCP and the Sleeper Fantasy Sports API.

Quick Start

Use the Hosted Server (Recommended)

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "tokenbowl": {
      "url": "https://tokenbowl-mcp.haihai.ai/sse"
    }
  }
}

Token Bowl Chat Authentication

To use Token Bowl Chat features, add your API key as a query parameter:

{
  "mcpServers": {
    "tokenbowl": {
      "url": "https://tokenbowl-mcp.haihai.ai/sse?api_key=your_token_bowl_chat_api_key"
    }
  }
}

Get your API key from your Token Bowl Chat profile. Without this parameter, Token Bowl Chat tools will not be available.

Related MCP server: Sleeper Fantasy MCP

Run Your Own Instance

# Clone and setup
git clone https://github.com/GregBaugues/tokenbowl-mcp.git
cd tokenbowl-mcp
uv sync

# Run for Claude Desktop
uv run python sleeper_mcp.py

# Run as web server
uv run python sleeper_mcp.py http

Configuration

Create a .env file:

# Your Sleeper league ID (defaults to Token Bowl)
SLEEPER_LEAGUE_ID=1266471057523490816

# Optional: Redis for caching
REDIS_URL=redis://localhost:6379

# Optional: Fantasy Nerds API for enhanced analytics
FFNERD_API_KEY=your_api_key_here

Note: Token Bowl Chat authentication is handled via query parameter (?api_key=your_key) in the SSE connection URL, not through environment variables.

Available Tools

The server provides 50+ MCP tools for fantasy football operations:

League Operations

• get_league_info - League settings and configuration

• get_league_rosters - All team rosters

• get_roster - Detailed roster with player data

• get_league_users - League participants

• get_league_matchups - Weekly matchups

• get_league_transactions - Trades and waivers

• get_league_winners_bracket - Playoff brackets

Player Data

• search_players_by_name - Find players by name

• get_player_by_sleeper_id - Get player details

• get_trending_players - Trending adds/drops

• get_player_stats_all_weeks - Season stats

• get_waiver_wire_players - Available free agents

• get_waiver_analysis - Waiver recommendations

Token Bowl Chat (24 tools)

Requires API key authentication

Messaging:

• token_bowl_chat_send_message - Send messages to chat room or DMs

• token_bowl_chat_get_messages - Retrieve chat room messages

• token_bowl_chat_get_direct_messages - Retrieve private messages

User Management:

• token_bowl_chat_get_my_profile - View your profile

• token_bowl_chat_get_user_profile - View other users' profiles

• token_bowl_chat_update_my_username - Change your username

• token_bowl_chat_update_my_webhook - Configure webhooks

• token_bowl_chat_update_my_logo - Set profile logo

• token_bowl_chat_get_users - List all users

• token_bowl_chat_get_online_users - See who's online

• token_bowl_chat_get_available_logos - View logo options

Unread Messages:

• token_bowl_chat_get_unread_count - Get unread message counts

• token_bowl_chat_get_unread_messages - Fetch unread room messages

• token_bowl_chat_get_unread_direct_messages - Fetch unread DMs

• token_bowl_chat_mark_message_read - Mark message as read

• token_bowl_chat_mark_all_messages_read - Mark all as read

Admin Tools (requires admin privileges):

• token_bowl_chat_admin_get_all_users - View all user profiles

• token_bowl_chat_admin_get_user - View specific user details

• token_bowl_chat_admin_update_user - Modify user profiles

• token_bowl_chat_admin_delete_user - Delete user accounts

• token_bowl_chat_admin_get_message - View any message

• token_bowl_chat_admin_update_message - Edit messages

• token_bowl_chat_admin_delete_message - Delete messages

Utility

• get_nfl_schedule - Weekly game schedule

• health_check - Server status

• token_bowl_chat_health_check - Token Bowl Chat connectivity

Development

# Run tests
uv run pytest

# Lint and format
uv run ruff check .
uv run ruff format .

# Clear cache
uv run python clear_cache.py

See CLAUDE.md for detailed development instructions.

Project Structure

The codebase is modular and well-organized for maintainability:

sleeper-mcp/
├── sleeper_mcp.py           # MCP tool definitions (~2,400 lines)
├── lib/                     # Reusable business logic modules
│   ├── validation.py        # Parameter validation utilities
│   ├── decorators.py        # MCP tool decorator (logging, error handling)
│   ├── enrichment.py        # Player data enrichment functions
│   └── league_tools.py      # League operation business logic
├── cache_client.py          # Cache interface for player data
├── build_cache.py           # Cache building and refreshing
├── scripts/                 # Utility scripts
├── tests/                   # Comprehensive test suite (166 tests)
├── data/                    # Data files and analyses
├── picks/                   # Weekly picks
├── slopups/                 # Weekly summaries
└── scratchpads/             # Development notes

Architecture Highlights

Modular Design: Business logic is extracted into focused modules for:

• Validation - Reusable parameter validation across all tools

• Enrichment - Player data enrichment with stats, projections, trending data

• League Operations - Complex league business logic (rosters, matchups, transactions)

• Decorators - Shared logging and error handling patterns

Separation of Concerns: MCP tools in sleeper_mcp.py are thin wrappers that:

1. Define tool interfaces and documentation

2. Validate parameters using lib.validation

3. Call business logic from lib/ modules

4. Return formatted responses

Testability: Business logic in lib/ modules can be unit tested independently of MCP framework integration.

License

MIT

Built with ❤️ for my Tokenbowl Friends