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Open Interest

Query OI snapshots, coin-level timeseries, and exchange leaderboards across 40+ tracked venues, with per-exchange symbol breakdowns and a ranked symbol list sorted by total OI USD. Historical depth ranges from 30 days on Dev to 90 days and beyond on Pro, with hourly or daily granularity depending on the selected window.

DevOI SymbolsGET /oi/symbols

Ranked symbol leaderboard by total open interest USD with 24h change and exchange coverage.

DevExchange OI TotalsGET /oi/exchange-totals

Aggregated open interest per exchange over a date range, in USD or contracts.

FreeCoin OIGET /oi/coin

OI timeseries for all exchanges on a base coin — the per-coin drill-down view.

DevExchanges SummaryGET /oi/exchanges-summary

Exchange OI leaderboard with 24h/7d changes, sparklines, and market share.

DevExchange SymbolsGET /oi/exchange-symbols

All symbols on one exchange with OI USD, share of exchange, and changes.

DevTop Symbols TimeseriesGET /oi/exchange-top-symbols-timeseries

Daily OI timeseries for top N symbols on one exchange — wide format for stacked charts.

DevOI MetadataGET /oi/metadata

Available exchanges and symbols from recent OI data — catalog for routing and discovery.