Basescan
The official block explorer for Base, Coinbase's Ethereum L2 network.
Best for: Developers and analysts working on the Base ecosystem who need a reliable block explorer for transaction lookup, contract verification, and on-chain data access.Basescan is the primary block explorer for Base, the Ethereum Layer 2 network developed by Coinbase and built on the OP Stack. It is part of the Etherscan family of explorers, sharing the same interface and feature set adapted for the Base chain.
Analysts and developers use Basescan to inspect transactions, verify smart contracts, track token balances and transfers, monitor wallet activity, and view sequencer data on the Base network. As Base has grown into one of the top L2 networks by TVL and transaction volume, Basescan has become a core reference tool.
The Basescan API is compatible with the Etherscan API interface, making it easy to extend existing Ethereum analytics pipelines to Base. For deeper analytics work (cross-protocol queries, complex aggregations), analysts typically combine Basescan with Dune, Allium, or Goldsky.
Pricing
Free with full explorer access. API access free with registration (rate limited). Premium API plans available.
Chains Supported
Base (Ethereum L2)
- Transaction and wallet activity lookup on Base
- Smart contract source code verification and reading
- Token transfer history and holder analysis
- API access for Base on-chain data integration
- Monitoring Base ecosystem protocol activity
