How to get ERC20 metadata by contract

If you want to automatically get the metadata of some ERC20 tokens, definitely check out Chainbase API getTokenMetadata. You can easily retrieve the metadata for any ERC20 token with its contract address by using Chainbase API.

Overview - Tools you need to work with Chainbase

A free account at Chainbase with an API key.
An IDE. Our examples are shown in JavaScript, you can use VS Code as your IDE for example.
A contract address of an ERC20 token as your input.

Step 1: Set up a free account at Chainbase

To better leverage the ability that Chainbase provides, you can register here for a free account and access to different APIs and data cloud.

After logging into Chainbase, visit the dashboard to get an overview. Create a new project in the console and get an API key.

Step 2: Write script using Chainbase API

Using fetch in JavaScript.

network_id = '1'; // See https://docs.chainbase.com/reference/supported-chains to get the id of different chains.
contract_addr = '0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0'; // Take Matic Token's contract address as an example.

fetch(`https://api.chainbase.online/v1/token/metadata?chain_id=${network_id}&contract_address=${contract_addr}`, {
    method: 'GET',
    headers: {
        'x-api-key': CHAINBASE_API_KEY, // Replace the field with your API key.
        'accept': 'application/json'
    }
}).then(response => response.json())
    .then(data => console.log(data.data))
    .catch(error => console.error(error));

Using axios in JavaScript. You need to install axios using npm install axios --save in the terminal first.

network_id = '1'; // See https://docs.chainbase.com/reference/supported-chains to get the id of different chains.
contract_addr = '0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0'; // Take Matic Token's contract address as an example.

const axios = require('axios');
const options = {
    url: `https://api.chainbase.online/v1/token/metadata?chain_id=${network_id}&contract_address=${contract_addr}`,
    method: 'GET',
    headers: {
        'x-api-key': CHAINBASE_API_KEY, // Replace the field with your API key.
        'accept': 'application/json'
    }
};
axios(options)
    .then(response => console.log(response.data.data))
    .catch(error => console.log(error));

Step 3: Print metadata of an ERC20 token

Chainbase API getTokenMetadata takes the chain id and token contract address as parameters, and returns the metadata of the ERC20 token.

To get data printed, run command node <filename>.js in the terminal. In this case, the data returned looks as follows.

{
	"contract_address": "0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0",
	"name": "Matic Token",
	"symbol": "MATIC",
	"decimals": 18,
	"total_supply": "0x204fce5e3e25026110000000"
}

API Reference

If you want to know more details on the endpoint and optional parameters, check out:

getTokenMetadata

Support

If you meet any trouble following the tutorial, feel free to reach out to us in our Discord to get 24/7 community support.