LI.FI MCP Server

A Model Context Protocol (MCP) server that provides comprehensive integration with the LI.FI API for cross-chain bridge and DEX aggregation services.

Overview

This MCP server enables AI assistants and applications to interact with LI.FI's cross-chain infrastructure through a standardized protocol. It provides access to blockchain network information, token data, bridging tools, transaction status tracking, and more.

Features

Available Tools

• Chain Information (lifi_get_chains) - Get information about all supported blockchain networks
• Token Data (lifi_get_tokens) - Retrieve comprehensive token information across chains
• Specific Token (lifi_get_token) - Get detailed information about a specific token
• Bridge & Exchange Tools (lifi_get_tools) - List available bridges and exchanges
• Chain Connections (lifi_get_connections) - Explore supported cross-chain connections
• Gas Price Data (lifi_get_gas_prices) - Get current gas prices for specific chains
• Gas Suggestions (lifi_get_gas_suggestion) - Get gas amount recommendations
• Transaction Status (lifi_get_transaction_status) - Track cross-chain transfer status
• Fee Withdrawal (lifi_get_integrator_fee_withdrawal) - Manage integrator fee withdrawals

Prerequisites

• Node.js (v16 or higher)
• npm or yarn
• LI.FI API key

Installation

1. Clone the repository:

git clone <repository-url>
cd lifi-mcp-server

2. Install dependencies:

npm install

3. Obtain a LI.FI API key:
   • Visit LI.FI Developer Portal to register and get your API key
   • Keep your API key secure and ready for configuration

Configuration

The server requires the following configuration:

• lifiApiKey (required): Your LI.FI API key for authentication
• debug (optional): Enable debug logging (default: false)

Development

Start the development server:

npm run dev

This will start the MCP server using Smithery CLI with hot reloading enabled.

Usage

With MCP-Compatible Applications

This server can be used with any application that supports the Model Context Protocol, such as:

• Claude Desktop
• MCP-enabled IDEs
• Custom MCP clients

Example Configuration

For Claude Desktop, add to your claude_desktop_config.json:

{
  "mcpServers": {
    "lifi": {
      "command": "node",
      "args": ["path/to/lifi-mcp-server/dist/index.js"],
      "env": {
        "LIFI_API_KEY": "your-api-key-here"
      }
    }
  }
}

Tool Examples

Get supported chains:

lifi_get_chains

Get tokens for specific chains:

lifi_get_tokens(chains: "1,137,42161")

Check transaction status:

lifi_get_transaction_status(txHash: "0x...")

Get gas prices:

lifi_get_gas_prices(chainId: "1")

API Reference

Chain Operations

• lifi_get_chains(chainTypes?) - List supported blockchain networks

Token Operations

• lifi_get_tokens(chains?, chainTypes?, minPriceUSD?) - Get token information
• lifi_get_token(chain, token) - Get specific token details

Infrastructure

• lifi_get_tools(chains?) - List available bridges and exchanges
• lifi_get_connections(fromChain?, toChain?, fromToken?, toToken?, allowBridges?, denyBridges?, allowExchanges?, denyExchanges?) - Get connection information

Gas & Pricing

• lifi_get_gas_prices(chainId) - Get current gas prices
• lifi_get_gas_suggestion(chain, fromChain?, fromToken?) - Get gas recommendations

Transaction Management

• lifi_get_transaction_status(txHash?, transactionId?) - Track transaction status
• lifi_get_integrator_fee_withdrawal(integratorId, chainId, tokens?) - Manage fee withdrawals

Tech Stack

• Runtime: TypeScript
• MCP SDK: @modelcontextprotocol/sdk
• HTTP Client: node-fetch
• Validation: Zod
• Development: Smithery CLI

Error Handling

The server includes comprehensive error handling for:

• API authentication failures
• Network connectivity issues
• Invalid parameter validation
• LI.FI API errors and rate limits

All errors are returned as structured responses with descriptive messages.

Security

• API keys are required and validated at connection time
• All requests use HTTPS
• Input validation using Zod schemas
• No sensitive data is logged in production

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

License

ISC

Support

For issues related to:

• This MCP Server: Create an issue in this repository
• LI.FI API: Visit LI.FI Documentation
• Model Context Protocol: Visit MCP Documentation

Changelog

v1.0.0

• Initial release with full LI.FI API integration
• Support for all major LI.FI endpoints
• Comprehensive error handling and validation