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Join us on DiscordDaily net flows into US spot Bitcoin and Ether ETFs — the clearest read on institutional demand. Green days are net inflows (funds buying coins); red days are net outflows.
The settled net flow across every US spot Bitcoin ETF for each trading day of the last 90 days, oldest to newest, dated by the trade date it describes. Bars above the line are net inflows (the issuers buying spot); below are net outflows. A day only appears once every fund has reported, so a half-reported day never shows as a small bar.
Hover any bar for its date and value.
The settled net flow across every US spot Ether ETF for each trading day of the last 90 days, oldest to newest, dated by the trade date it describes. Bars above the line are net inflows (the issuers buying spot); below are net outflows. A day only appears once every fund has reported, so a half-reported day never shows as a small bar.
Hover any bar for its date and value.
A US spot ETF has to buy or sell the underlying coin to match shares created or redeemed. So when an ETF sees net inflows, the issuer is buying real spot Bitcoin or Ether to back the new shares — adding genuine demand. Net outflows mean the opposite: coins are sold back into the market.
Because of that mechanical link, sustained flow trends are one of the most-watched demand proxies in crypto. A run of strong green days signals institutions accumulating; a run of red days signals distribution. Single days are noisy — the cumulative trend is the signal.
curl -H "X-API-Key: cdk_live_yourkey" "https://cryptodataapi.com/api/v1/market-intelligence/etf/btc/flows"
Daily flows per asset — swap btc for eth or sol.
ETF flows are the cleanest daily read on institutional demand — published every day, in dollars, with no on-chain ambiguity. They are also slow: the trade they support is measured in days and weeks, not hours, and the prompt forces that discipline.
Build me a swing strategy around Bitcoin ETF flows from CryptoDataAPI. Read the daily creations/redemptions from /api/v1/market-intelligence/etf/btc/flows (eth and sol variants exist at the same path). The signal is persistence, not one day: define a rolling net-flow window, the threshold that flips you long or flat, and a holding period measured in days. State what invalidates the position — a single red day should not. Then backtest against daily BTC bars from /api/v1/backtesting/klines?symbol=BTC&interval=1d. The flow history covers the full spot-ETF era from January 2024. Report the equity curve against buy-and-hold, max drawdown, and the lag sensitivity: does acting one day later destroy the edge? If flows merely follow price rather than lead it, show the cross-correlation and say so.
ETF flow is a daily print that everyone quotes and few test. The archive keeps every issuer's flow alongside the same day's price, derivatives positioning and market health, so "do inflows lead price?" becomes a query rather than an argument.
curl -H "X-API-Key: cdk_live_yourkey" \ "https://cryptodataapi.com/api/v1/backtesting/snapshots?data_type=coinglass_etf_flows&start=2026-05-09&limit=1000"
Working guides and live data pages that pair with this one — each maps a question an agent actually asks to the exact call that answers it.
Dated crypto catalysts with a long/short bias and magnitude, plus the event-regime verdict.
How to pull dated unlocks from the API, cliff by cliff.
The event-risk overlay (unlocks + macro prints) for a trading agent.
Every ≥$100k account's positioning, net bias and per-coin conviction.
Pull whale positioning and conviction from the API.
Dealer positioning, the gamma profile and the flip level per coin.
The perps analog of options GEX, and how to query it.
Pro unlocks every coin on the quant surfaces — whale positioning, dealer gamma (GEX), short-horizon regime probabilities, L2 order-book depth and full-universe funding — on the same key you already hold.
AI agents: subscribe key-in-hand with no browser and no card —
POST /api/v1/payments/agent-subscribe
(x402 gasless USDC on Base, Ethereum or Solana; call it once for the 402 payment instructions, sign, call again).