Answers: "What is a known whale doing across spot + perps?"
ADDR=<whale_address> CHAIN=ethereum
nansen research profiler labels --address $ADDR --chain $CHAIN
# → label, category (identity, SM labels, ENS names)
nansen research profiler balance --address $ADDR --chain $CHAIN
# → token_symbol, token_amount, value_usd, price_usd per holding
nansen research profiler transactions --address $ADDR --chain $CHAIN --limit 20
# → block_timestamp, method, tokens_sent, tokens_received, volume_usd
nansen research profiler perp-positions --address $ADDR
# → asset_positions, margin_summary_account_value_usd, margin_summary_total_margin_used_usd
nansen research profiler counterparties --address $ADDR --chain $CHAIN --days 7
→ counterparty_address, counterparty_address_label, total_volume_usd, interaction_count
perp-positions returns Hyperliquid data — returns empty if the wallet has no open perps.