web3agent-aof/dist/tools.js

AI Framework for Onchain Operations and DeFi Interactions

import { DynamicTool } from '@langchain/core/tools';
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(process.env.RPC_URL);
export const getTools = () => {
    return [
        new DynamicTool({
            name: 'get_eth_price',
            description: 'Get the current ETH price in USD',
            func: async () => {
                try {
                    // Using ETH/USD price feed from Chainlink on Ethereum mainnet
                    const aggregatorV3InterfaceABI = [
                        'function latestRoundData() external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound)'
                    ];
                    const addr = '0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419';
                    const priceFeed = new ethers.Contract(addr, aggregatorV3InterfaceABI, provider);
                    const roundData = await priceFeed.latestRoundData();
                    const price = roundData.answer.toString() / 1e8;
                    return `The current ETH price is $${price}`;
                }
                catch (error) {
                    return `Error getting ETH price: ${error.message}`;
                }
            },
        }),
        new DynamicTool({
            name: 'get_eth_balance',
            description: 'Get the ETH balance of an address',
            func: async (input) => {
                try {
                    const balance = await provider.getBalance(input);
                    return `Balance: ${ethers.formatEther(balance)} ETH`;
                }
                catch (error) {
                    return `Error getting balance: ${error.message}`;
                }
            },
        }),
    ];
};
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