Crest wallet intelligence — onchain wallet score, whale detection, and address risk profiling for any Base or EVM wallet. Also profiles x402 buyers in the agent economy: whale score (0-1 composite of spend velocity, service diversity, premium ratio, repeat rate), behavioral cluster, x402 spend graph, counterparty check, payment history, top services, risk assessment, and temporal patterns. A wallet tracker and profiler with proprietary intelligence from 18,000+ profiled wallets.