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Bullflow Net Vex (Vanna Exposure) by Strike
x402
Bullflow Net Vex (Vanna Exposure) by Strike is a paid API for AI agents from api.bullflow.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Returns real-time vex (vanna exposure) and net exposure data broken down by strike and expiration for a given ticker symbol.
Price / call$0.01
Success—
StatusUnknown
How this service works
Bullflow.io is a real-time unusual options flow and dark pool tracker with advanced tools to view, filter, and analyze market activity as it happens.
Output
Returns a JSON object with the ticker, spot price, ISO 8601 as_of timestamp, and an array of strike-level entries. Each entry includes the expiration date (YYYYMMDD), the strike price in USD, call vex, put vex, net vex (net dealer vanna exposure), weighted call vanna, and weighted put vanna. This allows downstream analysis of dealer hedging dynamics across the options chain.
Example use cases
Gamma and vanna squeeze identification
“Get me the net vex and vanna exposure across all strikes for SPY so I can see where dealer hedging pressure is concentrated today.”
Options expiration pinning analysis
“What does the vex data look like for QQQ across all upcoming expirations? I want to see where the largest net exposures are sitting to spot potential pinning levels.”
Pre-earnings options Greeks check
“Pull the vanna and vex exposure breakdown by strike for NVDA right now — I want to see how options dealer positioning looks before earnings.”
Technical details
Endpoint
GEThttps://api.bullflow.io/v1/data/netvex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time, strike-level vanna exposure (vex) data for options dealer positioning analysis. It is particularly valuable for identifying potential gamma/vanna squeeze levels, expiration pinning targets, and dealer hedging flows. Prefer this over generic options data endpoints when you specifically need vex and vanna metrics rather than raw options flow or volume data.
Side effects
- Invalid or unsupported ticker symbol returns an error or empty strikes array
- Market closed or pre-market hours may return stale or unavailable data
- Rate limiting or payment failure (x402) if USDC payment is not processed correctly
- Network timeout if real-time data feed is temporarily unavailable
- Ticker not covered by Bullflow returns an empty or null response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-10-14T19:00:00Z",
"ticker": "SPY",
"strikes": [
{
"strike": 600,
"net_vex": 100000,
"put_vex": -100000,
"call_vex": 200000,
"put_vanna": -0.25,
"call_vanna": 0.5,
"expiration": "20261016"
}
],
"spot_price": 600
}
}Tags
x402
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