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OnchainPulse ETF Flows
x402
OnchainPulse ETF Flows is a paid API for AI agents from onchainpulse.theaslangroupllc.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Returns daily and weekly net flow data for US spot Bitcoin, Ethereum, and Solana ETFs with per-issuer breakdown, cumulative flows, and momentum streak signals.
Price / call$0.15
Success—
StatusUnknown
How this service works
Crypto ETF flow intelligence — daily/weekly net flows for US spot BTC, ETH, and SOL ETFs, live per-issuer breakdown (IBIT, FBTC, ARKB, ETHA and more), cumulative flows, and a deterministic accelerating/decelerating streak read. For advisor, RIA, and trading agents.
Output
Returns structured flow data including daily and weekly net flows for US spot BTC, ETH, and SOL ETFs, a per-issuer breakdown (IBIT, FBTC, ARKB, ETHA, and others), cumulative flow totals, and a deterministic momentum signal indicating whether inflows/outflows are accelerating or decelerating.
Example use cases
Track institutional Bitcoin ETF demand shifts
“Show me this week's net inflows for all spot Bitcoin ETFs broken down by issuer — I need to know if institutions are piling in or pulling out, and whether the momentum is getting stronger or weaker.”
Monitor Ethereum ETF capital rotation patterns
“Get me the latest daily and weekly net flow numbers for all Ethereum ETFs, especially ETHA and any new issuers. Are we seeing consistent buying or is the trend reversing?”
Compare Solana ETF adoption vs competitors
“Pull the cumulative flow data for Solana spot ETFs since they launched, and show me how it stacks up against the weekly inflows we're seeing for Bitcoin and Ethereum ETFs right now.”
Technical details
Endpoint
GEThttps://onchainpulse.theaslangroupllc.com/api/etf-flowsWhen to prefer
Choose this endpoint when you need structured, per-issuer US spot crypto ETF flow intelligence with momentum signals — especially useful for advisor, RIA, or trading agents that need to assess institutional sentiment around BTC, ETH, or SOL ETFs. Prefer this over general market data APIs when the specific question is about ETF capital flows and trend direction rather than price or on-chain activity.
Side effects
- Payment not processed — 402 response if x402 payment header is missing or insufficient
- Data unavailable for a specific asset class (e.g. SOL ETFs not yet live) — partial or empty response
- Stale data if called outside of market data refresh window — returns last available figures with timestamp
- Invalid query parameters — 400 response for unrecognized issuer or asset filter values
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"assets": [
{
"asset": "BTC",
"headline": "Spot BTC ETFs post a third straight day of net inflows, led by IBIT",
"flow_read": "5-day net inflow accelerating vs the prior 5-day window — a strengthening institutional bid."
}
],
"deterministic": {
"assets": [
{
"asset": "BTC",
"aggregate": {
"trend": "accelerating_inflow",
"streak_days": 3,
"streak_direction": "inflow"
}
}
]
},
"cross_asset_read": "BTC inflows while ETH holds flat — no rotation signal yet."
}
}Tags
x402
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