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ByKaranteli VPIN Flow Toxicity
x402
ByKaranteli VPIN Flow Toxicity is a paid API for AI agents from bykaranteli.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns 90-day daily VPIN history with closes, last 500 volume buckets, and a live snapshot for BTC, ETH, or SOL order flow toxicity analysis
Price / call$0.002
Success—
StatusUnknown
How this service works
Order flow toxicity (VPIN) HISTORY for BTC, ETH and SOL: 90-day daily VPIN track with closes plus the last 500 volume buckets .
Output
Returns a JSON payload containing: (1) a live VPIN snapshot, (2) 90 days of daily VPIN values with corresponding price closes, and (3) the last 500 volume buckets used in VPIN computation — all for the requested asset (BTC, ETH, or SOL).
Example use cases
Detecting informed trading before major move
“Fetch me the 90-day daily VPIN history for ETH with the last 500 volume buckets — I want to see if order flow toxicity was elevated before recent price swings.”
Real-time crypto flow toxicity dashboard
“Get the current VPIN snapshot plus the full daily history for SOL so I can update my flow toxicity dashboard with the latest data.”
Quant strategy backtesting with VPIN
“I need the 90-day VPIN track for BTC including all daily closes and volume bucket data to backtest a market-making strategy that fades toxic flow.”
Technical details
Endpoint
GEThttps://bykaranteli.com/api/x402/flow-vpinWhen to prefer
Choose this endpoint when you need deep historical VPIN data (90-day daily track + 500 volume buckets) for BTC, ETH, or SOL — especially for backtesting, quantitative analysis, or building a flow toxicity dashboard. For a free live-only snapshot without history, use the public /api/public/flow endpoint instead. Prefer this over generic order book APIs when you specifically need volume-synchronized probability of informed trading (VPIN) methodology.
Side effects
- Unsupported asset symbol returns error (only BTC, ETH, SOL supported)
- Payment failure if x402 USDC payment of $0.002 is not properly submitted
- Rate limiting if too many requests in short succession
- Stale or delayed data if upstream exchange feeds are interrupted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"rows": [
{
"vpin": 0.31,
"symbol": "BTCUSDT",
"percentile_90d": 62.5
}
]
}
}Tags
x402
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