etherscan-api
Etherscan API V2
Overview
Query blockchain data using Etherscan's unified API V2. This skill covers:
- Native ETH balance queries
- ERC-20 token balance queries (single contract on every plan; full holdings on PRO)
- Transaction history queries (normal, internal, ERC-20/ERC-721/ERC-1155 transfers)
- First-funding lookup for an address (PRO
fundedbywith a 2-call free-tier fallback) - Multi-chain support via the
chainidparameter - Auto-detection of Free vs Lite vs PRO so paid-only chains and PRO-only endpoints are used when available
Scope: Read-only account queries. For other Etherscan API features, consult the fallback documentation.
Prerequisites
API Key Validation
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