Truffle

Modify your truffle-config.js to add the EOS EVM to Truffle:

require('dotenv').config();
const HDWalletProvider = require('@truffle/hdwallet-provider');

module.exports = {
    networks: {
        eosevm: {
            provider: new HDWalletProvider([process.env.PRIVATE_KEY], "https://api.evm.eosnetwork.com"),
            network_id: 17777,
        },
        eosevm_testnet: {
            provider: new HDWalletProvider([process.env.PRIVATE_KEY], "https://api.testnet.evm.eosnetwork.com"),
            network_id: 15557,
        },
        // ... other networks
    },
    // ... other config

Installing dependencies

You may need to install @truffle/hdwallet-provider and dotenv:

npm install @truffle/hdwallet-provider dotenv
// or
yarn add @truffle/hdwallet-provider dotenv