Fraxlend MCP Server

Overview

The Fraxlend MCP Server enables AI agents to interact with Fraxlend, a DeFi lending protocol on Fraxtal. This server provides comprehensive access to lending pools, allowing agents to view statistics, lend assets, borrow, manage collateral, repay loans, and withdraw funds.

By implementing the Model Context Protocol (MCP), this server allows Large Language Models (LLMs) to interact with Fraxlend pools, manage positions, and execute DeFi operations directly through their context window.

Features

• Pool Discovery: Search and filter FraxLend pools by asset and collateral tokens.
• Lending Operations: Lend assets to earn yield from borrowers.
• Borrowing: Borrow assets against collateral from FraxLend pools.
• Collateral Management: Add or remove collateral from lending positions.
• Position Tracking: Monitor your lending and borrowing positions across pools.
• Loan Repayment: Repay borrowed assets to reduce debt.

Installation

Using npx (Recommended)

To use this server without installing it globally:

npx @iqai/mcp-fraxlend

Build from Source

git clone https://github.com/IQAIcom/mcp-fraxlend.git
cd mcp-fraxlend
pnpm install
pnpm run build

Running with an MCP Client

Add the following configuration to your MCP client settings (e.g., claude_desktop_config.json).

Minimal Configuration

{
  "mcpServers": {
    "fraxlend": {
      "command": "npx",
      "args": ["-y", "@iqai/mcp-fraxlend"],
      "env": {
        "WALLET_PRIVATE_KEY": "your_wallet_private_key_here"
      }
    }
  }
}

Advanced Configuration (Local Build)

{
  "mcpServers": {
    "fraxlend": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-fraxlend/dist/index.js"],
      "env": {
        "WALLET_PRIVATE_KEY": "your_wallet_private_key_here"
      }
    }
  }
}

Configuration (Environment Variables)

Variable	Required	Description	Default
WALLET_PRIVATE_KEY	Yes	Your wallet private key for signing transactions	-

Security Note: Handle your private key with extreme care. Ensure it is stored securely and only provided to trusted MCP client configurations.

Usage Examples

Pool Discovery

• "What FraxLend pools are available for FRAX?"
• "Find pools where I can use ETH as collateral."
• "Show me the highest APR lending pools."

Lending & Borrowing

• "Lend 1000 FRAX to the FRAX/sfrxETH pool."
• "Borrow 500 FRAX using my sfrxETH as collateral."
• "What are my current positions in FraxLend?"

Position Management

• "Add more collateral to my borrowing position."
• "Remove excess collateral from my position."
• "Repay my loan in the FRAX pool."
• "Withdraw my lent assets from the pool."

MCP Tools

FRAXLEND_ADD_COLLATERAL

Add collateral to a FraxLend position

Parameter	Type	Required	Description
pairAddress	string	Yes	The contract address of the asset to add as collateral.
amount	string	Yes	The amount for the asset to add as collateral in the FraxLend pool.

FRAXLEND_BORROW

Borrow assets from a FraxLend pool

Parameter	Type	Required	Description
pairAddress	string	Yes	The contract address of the agent token to sell.
receiver	string	Yes	The address to receive the borrowed assets.
collateralAmount	string	Yes	The amount for the collateral asset to deposit in the FraxLend pool.
borrowAmount	string	Yes	The amount for the asset to borrow from the FraxLend pool.

FRAXLEND_GET_PAIR_ADDRESS

Get FraxLend pair addresses and pool information

Parameter	Type	Required	Description
assetSymbol	string		The symbol of the asset token.
collateralSymbol	string		The symbol of the collateral token.
sortByApr	string		Sort the results by APR, either highest or lowest.

FRAXLEND_GET_POSITIONS

Get your positions in FraxLend pools

Parameter	Type	Required	Description
address	string		The address of the user to get the positions for

FRAXLEND_LEND

Lend assets to a FraxLend pool

Parameter	Type	Required	Description
pairAddress	string	Yes	The contract address of the asset to lend.
amount	string	Yes	The amount for the asset to lend in the FraxLend pool.

FRAXLEND_REMOVE_COLLATERAL

Remove collateral from a FraxLend position

Parameter	Type	Required	Description
pairAddress	string	Yes	The contract address of the asset to remove as collateral.
amount	string	Yes	The amount for the asset to remove collateral from the FraxLend pool.

FRAXLEND_REPAY

Repay borrowed assets to a FraxLend pool

Parameter	Type	Required	Description
pairAddress	string	Yes	The contract address of the asset to repay.
amount	string	Yes	The amount for the asset to repay in the FraxLend pool.

FRAXLEND_WITHDRAW

Withdraw assets from a FraxLend pool

Parameter	Type	Required	Description
pairAddress	string	Yes	The contract address of the asset to withdraw.
amount	string	Yes	The amount for the asset to withdraw from the FraxLend pool.

Development

Build Project

pnpm run build

Development Mode (Watch)

pnpm run watch

Linting & Formatting

pnpm run lint
pnpm run format

Project Structure

• src/tools/: Individual tool definitions
• src/services/: Business logic and blockchain interactions
• src/lib/: Shared utilities
• src/index.ts: Server entry point

Resources

• Fraxlend Documentation
• Model Context Protocol (MCP)
• Frax Finance

Disclaimer

This project is an unofficial tool and is not directly affiliated with Frax Finance. It interacts with DeFi protocols and blockchain transactions. Users should exercise caution, verify all data independently, and understand the risks involved in lending, borrowing, and managing collateral in DeFi protocols.

License

MIT