Latest net flow for every asset

GET/v1/flows/summaryAPI key

Returns the latest net ETF flow (USD millions) for each of the 16 tracked assets — BTC, ETH, SOL, XRP, HYP, DOGE, LINK, AVAX, HBAR, LTC, BNB, DOT, SUI, NEAR, TRX and ZEC. "Latest" is the most recent day with a non-zero flow for that asset, so date can differ between assets: a small fund with no creations for a few days shows its last active day. For a time series of one asset use /v1/flows/{asset}.

Response fields

Latest non-zero net flow per asset.

Field	Type	Description
`assets`object[]	object[]	One entry per tracked asset.
`assets[].symbol`string	string	Asset ticker symbol.
`assets[].asset`string	string	Internal asset id.
`assets[].date`object \| null	object \| null	Latest day with a non-zero net flow for this asset (UTC). Can differ between assets; null if there is no data.
`assets[].netFlowUsdM`number	number	Net flow on that day in millions of USD, rounded to 0.1 (positive = inflow).
`updatedAt`string	string	Response generation time (UTC, ISO 8601).

Status codes

200	Latest non-zero net flow per asset.
401	Missing, unknown or revoked API key.
429	More than 120 requests in the current minute for this key. The `Retry-After` header says how many seconds to wait.

GET/v1/flows/summary

curl https://api.cryptoetf.today/api/v1/flows/summary \
  -H "Authorization: Bearer $CRYPTOETF_KEY"

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{
  "assets": [
    {
      "symbol": "BTC",
      "asset": "bitcoin",
      "date": "2026-06-16",
      "netFlowUsdM": 245.7
    }
  ],
  "updatedAt": "2026-06-16T07:50:00.000Z"
}

Latest non-zero net flow per asset.