How to verify the balance of my erc20 address

How do I check my ERC20 address balance?

If you want to check the balance of your ERC20 address, you will need to follow a few steps:

1. Connect to an Ethereum Endpoint

In order to interact with the Ethereum blockchain, you need to connect to an Ethereum endpoint. You can use public nodes or set up your own infrastructure, but for faster response times, you can use a service like QuickNode. Sign up for an account and create an Ethereum endpoint. Copy the HTTP Provider URL, as you will need it later.

2. Write up the ABI (Application Binary Interface)

The ABI is a specification of how to interact with a smart contract on the Ethereum blockchain. You will need to write up the ABI for the smart contract that you want to use to interact with the ERC20 token. The ABI provides information about the functions and properties of the smart contract that you can use to interact with the token.

3. Find an ERC20 token

To check the balance of your ERC20 address, you need to find an ERC20 token that you want to check the balance of. ERC20 tokens are fungible tokens on the Ethereum blockchain. They follow a specific set of rules defined by the ERC20 standard. There are many ERC20 tokens available, such as DAI, USDT, and UNI. You can search for ERC20 tokens on token listing websites or explore popular DeFi platforms.

4. Find a wallet

In order to check the balance of your ERC20 address, you need a wallet that supports ERC20 tokens. There are many wallets available, such as MetaMask, MyEtherWallet, and Trust Wallet. You can choose a wallet based on your preferences and requirements. Install the wallet of your choice and create a new wallet or import an existing wallet using your private key or seed phrase.

5. Use Web3.js to check the balance

Once you have connected to an Ethereum endpoint, written up the ABI, found an ERC20 token, and set up a wallet, you can use Web3.js to check the balance of your ERC20 address. Web3.js is a JavaScript library that allows you to interact with the Ethereum blockchain. You can use Web3.js to call the balanceOf function of the ERC20 token smart contract, passing your ERC20 address as a parameter. The balanceOf function will return the balance of your ERC20 address.

Here is an example of how to check the balance of your ERC20 address using Web3.js:

```javascript
const Web3 = require('web3');

// Connect to Ethereum endpoint
const web3 = new Web3('YOUR_ETHEREUM_ENDPOINT');

// Set up the ABI for the ERC20 token
const abi = [
// ABI definition
];

// Create an instance of the ERC20 token smart contract
const contract = new web3.eth.Contract(abi, 'SMART_CONTRACT_ADDRESS');

// Get the balance of your ERC20 address
const balance = await contract.methods.balanceOf('YOUR_ERC20_ADDRESS').call();

console.log('ERC20 balance:', balance);
```

Replace `YOUR_ETHEREUM_ENDPOINT` with the HTTP Provider URL of your Ethereum endpoint, `SMART_CONTRACT_ADDRESS` with the address of the ERC20 token smart contract, and `YOUR_ERC20_ADDRESS` with your ERC20 address.

Run the code in a JavaScript environment, such as Node.js, and you will see the balance of your ERC20 address printed in the console.

By following these steps and using Web3.js, you can easily check the balance of your ERC20 address. Keep in mind that you may need to adjust the code based on the specific ERC20 token and wallet you are using.