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OwlChart ETF Flows
x402
OwlChart ETF Flows is a paid API for AI agents from owlchart.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-17).
Returns the latest daily ETF net flow data (total and per-ETF) for Bitcoin or Ethereum spot ETFs.
Price / call$0.03
Success—
StatusUnknown
How this service works
Live crypto and stock market console: OwlView charts, TBO breakout signals, order books from 34 exchanges, ETF flows, funding, liquidations and Fed odds.
Output
Returns a JSON object with the date, asset (btc or eth), IBIT net flow in USD, and total net flow in USD across all spot ETFs for that asset on the latest trading day. Negative values indicate net outflows; positive values indicate net inflows.
Example use cases
Daily BTC ETF flow check
“Pull up today's Bitcoin ETF net flows — I want to see both IBIT specifically and the total across all spot BTC ETFs.”
Ethereum ETF demand monitoring
“What are the latest ETH spot ETF flows? I want to know if institutions are net buying or selling today.”
Crypto market sentiment signal
“Check the Bitcoin ETF inflow and outflow numbers for today — I'm trying to gauge institutional sentiment before making a trade decision.”
Technical details
Endpoint
GEThttps://owlchart.com/api/x402/etf-flows?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time or daily ETF flow data specifically for Bitcoin or Ethereum spot ETFs, including IBIT-level granularity. Prefer this over general market data APIs when institutional ETF demand signals are the specific focus.
Side effects
- Invalid asset parameter (not 'btc' or 'eth') returns an error
- Data may not be available on non-trading days or before market close
- Payment failure returns HTTP 402 if USDC payment is not processed
- Network timeout if upstream exchange data is unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"day": "15-10-2026",
"asset": "btc",
"ibit_usd": -110900000,
"total_usd": -261400000
}
}Tags
x402
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