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Developer API

Programmatic
Access.

Institutional-grade SPX & VIX gamma exposure. Per-strike derived data by participant and expiry, straight from the CBOE C1 exchange.

What You Get

Two Endpoints. Every Number That Matters.

Per-strike exposure, contract pricing, and intraday series. Filter by metric, participant, and expiry. Same CBOE C1 data the dashboard runs on — plus live option prices.

Per-contract call & put prices on every strike, every minute
4 exposure metrics per strike (GEX, DEX, VEX, CEX) with call/put splits
5 participant types (Market Maker, Firm, Broker-Dealer, Customer, Professional)
Intraday timeline + per-minute historical access (04:00–16:15 ET)
GET/api/v1/strikes
1 credit

Per-strike exposure + contract prices for one metric, one expiry, one participant type. GEX, DEX, VEX, CEX with call/put splits and live option pricing — all in a single response.

{
  "metric": "gex", "expiry": "0dte", "customer_type": "mm",
  "total": -7717799655,
  "data": [[7140, 4.4e9, 4.8e9, -4.4e8, 10.89, 6.62], ...],
  "fields": ["strike", "gex", "call_gex", "put_gex", "call_mid", "put_mid"]
}
GET/api/v1/timeline
1 credit

Intraday GEX and DEX series for the full trading day.

{
  "product": "SPX", "date": "2026-04-16",
  "data": [
    {"ts": "09:31", "gex": 2.45e9, "call_gex": 1.82e9, "put_gex": 6.3e8, "dex": 5.2e9}
  ]
}

Parameters

metric
GEX, DEX, VEX, CEX
customer_type
MM, Firm, BD, Cust, PCust
expiry
0DTE or specific date
date
Historical access, any past date

API Access

Included with Ultra subscription

$0/mo

Included with Ultra subscription

7,500 API calls included per month. $0.05 per call beyond.

Requires Ultra subscription

Documentation

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API Access | quantedOptions