KawaFi - Hedera DeFi MCP Server

KawaFi provides unified access to the Hedera DeFi ecosystem through the Model Context Protocol (MCP), enabling AI assistants to interact with multiple DeFi platforms safely and efficiently.

🚀 Overview

A comprehensive Model Context Protocol (MCP) server that provides unified access to major Hedera DeFi platforms including SaucerSwap, Bonzo Finance, Stader, HeliSwap, and Hashport. This server enables AI assistants and applications to interact with Hedera's DeFi ecosystem through 36 standardized tools covering data analytics, transaction preparation, and cross-platform operations.

✨ Features

🔐 Dual-Mode Security System

• Prepare Mode (Default): Generate unsigned transactions for external signing
• Execute Mode (Advanced): Optionally sign and execute transactions directly
• Security-First Design: Private keys only loaded when explicitly required

🌐 Multi-Platform DeFi Integration

• SaucerSwap: Leading AMM DEX (19 tools)
• Bonzo Finance: Lending and borrowing (3 tools)
• Stader: HBAR liquid staking (3 tools)
• HeliSwap: Trading pair data (1 tool)
• Hashport: Cross-chain bridging (10 tools)

🛠️ Comprehensive Toolset

• Data & Analytics: Real-time prices, pool reserves, APYs, lending rates
• Transaction Preparation: Complete unsigned transaction data with proper encoding
• Cross-chain Operations: Asset bridging across multiple networks
• Yield Optimization: Staking, farming, and lending opportunities

📊 Tool Overview

Platform	Data Tools	Transaction Tools	Total	Status
SaucerSwap	10	9	19	✅ 100% Working
Bonzo Finance	3	0*	3	✅ 100% Working
Stader	1	2	3	✅ 100% Working
HeliSwap	1	0	1	✅ 100% Working
Hashport	10	0	10	✅ 100% Working
TOTAL	25	11	36	✅ 100% Working

*Bonzo transaction tools planned for future release

🔧 Installation & Setup

Prerequisites

• Node.js 18+
• An MCP-compatible client (Claude Desktop, etc.)

1. Installation

# Install globally from npm
npm install -g kawa-fi-mcp

# Or run with npx (no installation needed)
npx kawa-fi-mcp --help

2. Environment Configuration

Create a .env file with your desired configuration (see .env.example for reference):

# Network Selection
HEDERA_NETWORK=mainnet  # or "testnet"

# Security Mode
EXECUTE_TX=false        # true for execution, false for prepare-only

# Platform API Keys
SAUCERSWAP_API_KEY=your_api_key_here  # Optional but recommended

# Hedera Credentials (choose based on network)
MAINNET_HEDERA_OPERATOR_ID=0.0.your_account
MAINNET_HEDERA_OPERATOR_KEY=your_private_key     # Only if EXECUTE_TX=true
TESTNET_HEDERA_OPERATOR_ID=0.0.your_testnet_account  
TESTNET_HEDERA_OPERATOR_KEY=your_testnet_private_key  # Only if EXECUTE_TX=true

3. MCP Client Configuration

Add to your MCP client:

Claude Desktop (claude_desktop_config.json):

{
  "mcpServers": {
    "hedera-defi": {
      "command": "npx",
      "args": ["kawa-fi-mcp"]
    }
  }
}

4. Verification

# Test the server directly
npx kawa-fi-mcp

# Or if installed globally
kawa-fi-mcp

# Check available tools (should show 13-36 tools based on configuration)

📋 Available Tools

SaucerSwap (19 tools)

Data & Analytics Tools (10)

• saucerswap_get_tokens - All available tokens with prices and metadata
• saucerswap_get_stats - Platform statistics (TVL, volume, SAUCE circulation)
• saucerswap_get_sss_stats - Single-Sided Staking statistics and XSAUCE ratio
• saucerswap_get_hbar_prices - Historical HBAR price data (minutely resolution)
• saucerswap_get_platform_data - Historical liquidity/volume data with intervals
• saucerswap_get_farms - Active yield farming opportunities
• saucerswap_get_farms_by_account - LP token amounts in farms by account
• saucerswap_get_pools - All liquidity pools with reserves and token info
• saucerswap_get_default_tokens - Default tokens with price changes
• saucerswap_get_v2_pools - V2 pools with advanced metrics (fees, ticks, liquidity)

Transaction Tools (9) 🆕

• saucerswap_quote_exact_input - Get swap quote for exact input amount
• saucerswap_quote_exact_output - Get swap quote for exact output amount
• saucerswap_swap_hbar_for_tokens - Prepare HBAR → tokens swap with refunds
• saucerswap_swap_tokens_for_hbar - Prepare tokens → HBAR swap with unwrapping
• saucerswap_swap_tokens_for_tokens - Prepare token → token swaps
• saucerswap_stake_sauce - Prepare SAUCE staking for xSAUCE
• saucerswap_unstake_xsauce - Prepare xSAUCE unstaking for SAUCE
• saucerswap_deposit_to_farm - Prepare LP token farm deposits
• saucerswap_withdraw_from_farm - Prepare LP token farm withdrawals

Other Platform Tools (17)

Bonzo Finance (3)

• bonzo_get_reserves - All lending/borrowing reserves
• bonzo_get_account - Account positions and balances
• bonzo_get_liquidations - Accounts eligible for liquidation

Stader (3)

• stader_get_exchange_rate - Current HBAR to HBARX exchange rate
• stader_stake_hbar - Stake HBAR for HBARX (transaction)
• stader_unstake_hbarx - Unstake HBARX for HBAR (transaction)

HeliSwap (1)

• heliswap_get_pair_info - Trading pair information

Hashport (10)

• hashport_get_supported_assets - Bridge-supported assets
• hashport_get_supported_networks - All supported networks
• hashport_get_bridge_steps - Step-by-step bridging instructions
• hashport_validate_bridge - Validate bridge parameters
• hashport_get_assets_amounts - Asset reserve amounts
• hashport_get_transfers - Paginated transfer history
• hashport_get_network_assets - Assets on specific networks
• hashport_get_network_asset_amounts - Asset amounts per network
• hashport_get_network_asset_details - Detailed asset information
• hashport_convert_hedera_tx_id - Transaction ID format conversion

🎯 Usage Examples

For comprehensive examples and test prompts for all 36 tools, see PROMPTS.md.

Basic DeFi Data

Get all tokens available on SaucerSwap

Show current HBAR to HBARX staking rate  

List active yield farms with APYs

Transaction Preparation 🆕

Prepare transaction to swap 10 HBAR for SAUCE tokens with 0.3% fee pool

Prepare transaction to stake 1000000 SAUCE for xSAUCE

Prepare transaction to deposit LP tokens to farm pool 1

Analytics & Cross-chain

Get HBAR price history from last week

Find accounts eligible for liquidation on Bonzo

Get bridge steps from Ethereum to Hedera for USDC

📊 Status & Testing

Current Status

• Overall: 36/36 tools working (100% success rate)
• Transaction Tools: 11/11 working (100% success rate)
• Data Tools: 25/25 working (100% success rate)

Detailed Results

See TEST_RESULTS.md for:

• Complete testing results with response sizes
• Performance notes and API rate limiting info
• Known issues and resolution steps
• Platform-specific availability details

Known Issues

• API Rate Limiting: Some SaucerSwap endpoints may timeout during high load
• Network Dependencies: Stader and HeliSwap only available on mainnet

🛡️ Security & Transaction Modes

Prepare Mode (Recommended)

EXECUTE_TX=false  # or omit entirely

• ✅ Secure: Private keys never loaded
• ✅ Flexible: Sign with hardware wallets, dApps, or secure environments
• ✅ Transparent: Complete unsigned transaction data provided
• ⚡ Fast: No blockchain interaction delays

Execute Mode (Advanced)

EXECUTE_TX=true
MAINNET_HEDERA_OPERATOR_KEY=302e020100...

• ⚠️ Security: Private key loaded in memory
• ⚡ Convenient: Automatic transaction signing and submission
• 📊 Results: Returns transaction IDs and confirmations
• 🎯 Use Case: Automated strategies, trusted environments

Transaction Output Example

Prepare Mode Output:

{
  "type": "prepared_transaction",
  "description": "Swap 10 HBAR for minimum 1000000 SAUCE tokens",
  "from": "0.0.123456",
  "to": "0x00000000000000000000000000000000002cc9B2",
  "function": "multicall(bytes[])",
  "gas": 400000,
  "value": "1000000000",
  "unsigned": {
    "contractId": "0x00000000000000000000000000000000002cc9B2",
    "functionName": "multicall",
    "functionParams": ["0xc04b8d59000000..."],
    "payableAmount": "1000000000"
  }
}

🏗️ Architecture & Development

Project Structure

src/
├── clients/           # Platform-specific client implementations
│   ├── saucerswap.ts    # SaucerSwap API + transaction tools
│   ├── bonzo.ts         # Bonzo Finance integration
│   ├── stader.ts        # Stader staking with transactions  
│   ├── hashport.ts      # Hashport bridge operations
│   └── heliswap.ts      # HeliSwap pair data
├── index.ts           # MCP server with 36 tool definitions
└── types/             # TypeScript definitions

Development Commands

# For local development (after git clone)
npm install            # Install dependencies
npm run dev            # Development with hot reload
npm run build          # Production build
npm run test           # Run test suite

# For users (npm package)
npm install -g kawa-fi-mcp  # Global installation
npx kawa-fi-mcp             # Direct execution

Technical Details

For complete technical overview, challenges, and architecture details, see SUBMISSION.md.

🔗 Documentation Links

• PROMPTS.md - Test prompts for all 36 tools
• TEST_RESULTS.md - Comprehensive testing results (100% success rate)
• SUBMISSION.md - Technical overview and project details

🤝 Contributing

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

🐛 Troubleshooting

Common Issues

Tools not appearing: Check MCP configuration and installation

npx kawa-fi-mcp --version  # Verify package is accessible

API timeouts: SaucerSwap has rate limits

# Retry requests or use smaller data ranges
# API tools may timeout but transaction tools work consistently

Contract errors: Verify network configuration

echo $HEDERA_NETWORK    # Should match your credentials
echo $EXECUTE_TX        # Should be "false" for prepare mode

Missing transaction tools: Ensure Hedera credentials are set

# For mainnet transaction tools:
echo $MAINNET_HEDERA_OPERATOR_ID    # Required for transaction preparation

Getting Help

• Check TEST_RESULTS.md for current tool status
• Review PROMPTS.md for working examples
• Verify environment configuration matches requirements

📄 License

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

🙏 Acknowledgments

• Model Context Protocol for the integration framework
• Hedera for the blockchain infrastructure
• DeFi platforms: SaucerSwap, Bonzo Finance, Stader, HeliSwap, Hashport

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KawaFi - Unifying Hedera DeFi for AI assistants 🤖⚡