ChessAgine MCP

<p align="center"> <img src="/icon.png" alt="ChessAgine" width="200"/> </p>

A comprehensive Model Context Protocol (MCP) server that provides advanced chess analysis capabilities by implementing Chess Context Protocol Server and integrating Stockfish engine evaluation, positional theme analysis, opening databases, puzzle training, game visualization, and chess knowledge for enhanced chess understanding and gameplay improvement.

Preview

<p align="center"> <img src="/assets/screenshots/claude2.png" alt="ChessAgine"/> </p>

Features

🔧 Core Analysis Tools

• Stockfish Integration: Deep engine analysis with configurable search depth
• Theme Analysis: Evaluate material, mobility, space, positional factors, and king safety
• Variation Analysis: Compare multiple lines and track positional changes
• Move Validation: Check move legality and generate board state descriptions
• Game Review: Comprehensive game analysis with theme progression and critical moments

🎮 Interactive Features

• Visual Board Rendering: Generate HTML chess boards for any position
• Dynamic Game Viewer: Interactive game replay with move navigation
• Puzzle Training: Access Lichess puzzle database with theme filtering
• Game Fetching: Retrieve user games from Lichess for analysis

📊 Database Integration

• Lichess Master Games: Access master-level opening statistics and games
• Lichess User Games: Analyze how positions are played across skill levels
• Lichess Puzzle Database: 3+ million tactical puzzles with theme-based filtering
• ChessDB: Query extensive game databases for move evaluations and statistics

🧠 Knowledge Base

• Chess Principles: Silman's imbalances and Fine's 30 principles
• Endgame Theory: Essential endgame knowledge and patterns
• Strategic Concepts: Comprehensive chess improvement guidelines
• Puzzle Themes: 150+ tactical motifs and patterns

Installation

Option 1: Using MCPB File (Recommended)

Download the chessagine-mcp.mcpb file and install it directly in Claude Desktop:

1. Download the latest release from GitHub releases
2. Open Claude Desktop
3. Go to Settings → Extensions → Install from file
4. Select the chessagine-mcp.mcpb file
5. Restart Claude Desktop

Option 2: Local Development Setup

Prerequisites

• Node.js 20+
• npm or yarn package manager

Clone and Setup

git clone https://github.com/jalpp/chessagine-mcp.git
cd chessagine-mcp
npm install
npm run build

Configure Claude Desktop

Add to your claude_desktop_config.json:

macOS/Linux:

{
  "mcpServers": {
    "chessagine-mcp": {
      "command": "node",
      "args": ["/absolute/path/to/chessagine-mcp/build/mastra/stdio.js"]
    }
  }
}

Windows:

{
  "mcpServers": {
    "chessagine-mcp": {
      "command": "node", 
      "args": ["C:\\absolute\\path\\to\\chessagine-mcp\\build\\mastra\\stdio.js"]
    }
  }
}

Usage Examples

Basic Position Analysis

Analyze this position: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1

Visual Board Display

Show me the board for this position: r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 2 3

Game Review

Review this game and identify critical moments:
[Event "Casual Game"]
[White "Player1"]
[Black "Player2"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6...

Puzzle Training

Give me a tactical puzzle rated between 1500-1800 with a fork theme

Fetch User Games

Show me the recent games for Lichess user "Magnus_Carlsen"

Interactive Game Viewer

Create an interactive viewer for this game: https://lichess.org/abc12345

Opening Exploration

What are the master games for the Sicilian Defense after 1.e4 c5 2.Nf3 d6?

Engine Analysis

Run Stockfish analysis on this position at depth 15: r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - 4 5

Variation Comparison

Compare these variations from the starting position:
1. e4 e5 2.Nf3 Nc6 3.Bb5
2. e4 e5 2.Nf3 Nc6 3.Bc4
3. e4 e5 2.Nf3 Nc6 3.d4

Theme Analysis

Analyze how the king safety theme changes in this line: 1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1

Available Tools

Tool	Description
Position Analysis
get-theme-scores	Analyze positional themes for strategic evaluation
analyze-variation-themes	Track theme evolution across move sequences
get-theme-progression	Monitor specific theme development
compare-variations	Side-by-side variation analysis
find-critical-moments	Identify key turning points
Engine & Evaluation
get-stockfish-analysis	Deep engine position analysis
get-stockfish-move-analysis	Post-move position evaluation
is-legal-move	Move validation
boardstate-to-prompt	Convert positions to text descriptions
Knowledge & Database
get-chess-knowledgebase	Access comprehensive chess knowledge
get-lichess-master-games	Master game database queries
get-lichess-games	User game statistics
get-chessdb-analysis	ChessDB position analysis
Visualization
generate-chess-board-view-artifact-using-html	Render chess board in HTML
generate-dynamic-gameview-html	Create interactive game viewer
Puzzle Training
fetch-chess-puzzle	Fetch puzzles from Lichess (filter by theme/rating)
get-puzzle-themes	List all available puzzle themes
Game Analysis
fetch-lichess-games	Fetch user's 20 most recent games
fetch-lichess-game	Fetch specific game by URL or ID
generate-game-review	Generate detailed game review with themes
parse-pgn-into-fens	Convert PGN to FEN position list

Available Prompts

Prompt	Description
analyze-position	Comprehensive positional analysis

Puzzle Training Features

ChessAgine MCP now includes access to Lichess's extensive puzzle database with:

• 3+ Million Puzzles: Tactical problems for all skill levels
• 150+ Themes: Fork, pin, skewer, mate patterns, endgames, and more
• Rating Filter: Find puzzles matching your skill level (500-3000+)
• Theme Combinations: Query multiple themes simultaneously
• Instant Feedback: Validate solutions with engine analysis

Popular Puzzle Themes

• Tactical Motifs: fork, pin, skewer, discoveredAttack, deflection
• Checkmate Patterns: mateIn1, mateIn2, mateIn3, backRankMate, smotheredMate
• Endgame Skills: pawnEndgame, rookEndgame, queenEndgame, promotion
• Strategic Elements: zugzwang, clearance, interference, attraction

Game Review System

The new game review system provides comprehensive analysis:

• Theme Progression: Track material, mobility, space, positional play, and king safety
• Critical Moments: Automatically identify turning points in the game
• Visual Analytics: Generate charts and graphs of theme evolution
• Format Options: JSON data or human-readable text reports
• Configurable Threshold: Adjust sensitivity for detecting critical moments

API Integration

The server integrates with several chess APIs:

• Lichess Explorer API: Opening statistics and master games
• Lichess Puzzle API: Tactical puzzle database with 3M+ positions
• Lichess Game API: User game history and specific game fetching
• ChessDB API: Position analysis and move databases
• Stockfish API: Engine evaluation and analysis

Development

Building from Source

npm run build:mcp  # Build the project
npm run dev        # Development mode with watch
npm run clean      # Clean build directory

Contributing

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Support

• Discord: Join ChessAgine community
• GitHub Issues: Report bugs or request features
• Documentation: Full documentation

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgments

• Stockfish: The powerful chess engine powering analysis
• Lichess: Open-source chess platform providing game data and puzzles
• ChessDB: Comprehensive chess position database
• Anthropic: Model Context Protocol specification and tools

Authors

@jalpp