Cryptocurrency Development Tutorials, Guides & Insights

• Node.js installed on your machine.
• A basic understanding of JavaScript.
• An Etherscan API key (explained below).
• Familiarity with Ethers.js for blockchain interaction.

To use the Etherscan API, you’ll need to get an API key. Here’s how:

These endpoints give you the flexibility to retrieve detailed blockchain data and customize your applications accordingly.

In this tutorial, you learned how to interact with the Ethereum blockchain using the Etherscan API. You successfully queried Ethereum wallet balances, transaction details, and ERC-20 token balances. By using the Etherscan API, you can easily access blockchain data without needing to run your own Ethereum node.

Once your script is set up, run it from the command line:

node getBalance.js

The Ethereum address "0x000000000000000000000000000000000000dead" is a special placeholder address, often referred to as a burn address. It is not used for transactions or wallet management, but for a specific function in the cryptocurrency ecosystem—burning tokens.

Burning tokens refers to the process of sending cryptocurrency tokens to an address from which they cannot be retrieved. Tokens sent to this address are effectively removed from circulation forever. The address ends with "dead," signaling its purpose of making tokens unreachable.

A stop-loss order helps limit potential losses by automatically closing a position at a specified price level.

You can set a stop-loss order when opening a position or on an existing position: