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 with a 2-call free-tier fallback) - Multi-chain support via the parameter - 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…