Blockscout

About Blockscout

Blockscout provides a set of blockchain explorer APIs covering multiple networks, including Ethereum-compatible chains, Arbitrum, Optimism, zkSync, Celo, Scroll, Shibarium, Stability, and Zilliqa. Its documentation organizes endpoints around common blockchain data needs such as addresses, blocks, transactions, token transfers, internal transactions, smart contracts, withdrawals, beacon deposits, and CSV export, alongside statistics and metadata services.

The offering is centered on a "PRO API," a unified interface accessed through a developer portal where users obtain an API key, replacing an older MyAccount key system. It also documents a migration path for developers coming from Etherscan's API, along with REST, JSON-RPC/ETH-compatible RPC, and GraphQL access methods, plus additional services such as domain and cluster/aggregator lookups, a verification API, and a Merits API.

This resource is intended for developers and teams building applications, agents, or tools that need to query on-chain data—balances, transaction histories, contract details, token activity—across supported blockchain networks, as well as for existing Etherscan API users evaluating or switching to an alternative provider.