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Bullflow Net GEX (Gamma Exposure) by Strike
x402
Bullflow Net GEX (Gamma 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 net gamma exposure (GEX) broken down by strike price and expiration for a given ticker, using open interest or volume as the contract count basis.
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
A JSON object containing the ticker, current spot price, an as-of ISO 8601 timestamp, and an array of strike-level records. Each record includes the expiration date, strike price, call GEX, put GEX, net GEX, call gamma, and put gamma values — giving a full gamma exposure ladder across the options chain.
Example use cases
Identify gamma wall before market open
“What does the GEX breakdown look like for SPY right now? I want to see which strike has the biggest call gamma concentration so I know where the market might pin today.”
Volume-based GEX for active trading day
“Get me the gamma exposure for QQQ using today's volume instead of open interest — I want to see where dealers are positioned based on contracts actually traded so far.”
Expiration-level gamma analysis for TSLA
“Show me the net GEX by strike and expiration for TSLA so I can figure out which expiry is driving the most dealer hedging pressure this week.”
Technical details
Endpoint
GEThttps://api.bullflow.io/v1/data/netgex?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, per-strike gamma exposure data for a specific ticker to identify gamma walls, flip levels, or dealer hedging concentration — especially when you need real-time or end-of-day GEX with the flexibility to switch between open interest and volume as the basis. Prefer this over generic options data APIs when the analysis specifically requires dealer gamma exposure metrics rather than raw options chain quotes or flow data.
Side effects
- Invalid or unsupported ticker returns an error or empty strikes array
- Missing required 'ticker' query parameter results in a 400-level error
- Stale data if requested outside trading hours — as_of timestamp will reflect most recent session close
- 'type' parameter value other than 'oi' or 'volume' may be rejected
- Payment failure via x402 protocol returns 402 response before data is served
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_gex": 100000,
"put_gex": -100000,
"call_gex": 200000,
"put_gamma": -27.7778,
"call_gamma": 55.5556,
"expiration": "20261016"
}
],
"spot_price": 600
}
}Tags
x402
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