US Spot Bitcoin & Ethereum ETF Flows

The tools are largely distinct: one for date-range aggregate flows, one for summary, one for per-fund flows, one for latest flows, and one for API access info. However, get_etf_flows_by_date_range and get_latest_etf_flows both return daily total net flows and could be confused, though the time scope and API-key differences help.

All tools use a consistent get_ prefix and snake_case, making them predictable. Minor inconsistency: 'get_etf_flow_summary' uses singular 'flow' while others use plural 'flows', and one name includes a prepositional phrase.

Five tools is well-scoped for a data API focused on ETF flows. Each tool addresses a distinct need: historical range, summary, per-fund, latest, and access information.

Core flow retrieval is covered across aggregate, per-fund, and summary views. Minor gaps include no tool to list available ETF tickers and no explicit date-range parameter for per-fund flows, but agents can likely work around these.