Look up any Ethereum address — returns entity labels, name tags, and categories from 412K+ labeled addresses. AI agent API for on-chain identity resolution
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://whale.hugen.tokyo/whale/lookup' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://whale.hugen.tokyo/whale/lookup'
Endpoint: https://whale.hugen.tokyo/whale/lookup. Operated by whale.hugen.tokyo, not by Animica. Price and availability were correct at the last probe on 2026-09-02 and are set by the operator, who may change them.
Recent large ETH transfers with sender/receiver labels and entity classification. AI agent API for whale movement detection and flow analysis