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Arbiscan

The official block explorer for Arbitrum One, Ethereum's leading L2 by TVL.

Best for: Developers and analysts working in the Arbitrum ecosystem who need a reliable block explorer for transaction lookup, contract verification, and on-chain data access.
Overview

Arbiscan is the primary block explorer for Arbitrum One, the Ethereum Layer 2 optimistic rollup network. Like Basescan, it is part of the Etherscan family, providing the same feature-rich interface adapted for Arbitrum.

Analysts use Arbiscan to examine transactions, track ERC-20 token movements, verify smart contracts, and monitor wallet activity on Arbitrum. The explorer provides detailed visibility into Arbitrum-specific mechanics including L1 batch submissions, sequencer activity, and cross-chain message passing.

The Arbiscan API follows the Etherscan API standard, making integration straightforward for teams already working with Ethereum data pipelines. For DeFi analysts covering Arbitrum protocols like GMX, Aave, Camelot, and Gains Network, Arbiscan is the essential on-chain reference.

Pricing

Free with full explorer access. API access free with registration (rate limited). Premium API plans available.

Chains Supported

Arbitrum One, Arbitrum Nova

Use Cases
  • Transaction and wallet activity lookup on Arbitrum
  • Smart contract verification and interaction on Arbitrum
  • Token transfer history and ERC-20 holder analysis
  • Monitoring DeFi protocol activity on Arbitrum
  • API access for programmatic Arbitrum data retrieval