Guide • Etherscan

Use Etherscan API with JavaScript

Code snippets and pagination strategies.

Quick steps

  1. Verify addresses and chain ID.
  2. Use correct ABI and compiler details.
  3. Export CSV for evidence.
  4. Respect API rate limits.

What’s included

TopicValueNotes
ExplorerTxs, blocks, addressesRead‑only
ContractsVerify, read, writeUse ABI carefully
APIBalances, txs, logsPaginate & cache