Skip to main content

Quickstart

This guide walks you through your first API call: fetching the token balances of Vitalik’s wallet on Ethereum.

Prerequisites

  • A 0xRadar API key (get one here)
  • curl, Python 3.8+, or Node.js 18+

Step 1: Pick a wallet

We’ll use a well-known address for this example:

Step 2: Make the request

Step 3: Multi-chain portfolio

What’s next?