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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.

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Simple Pricing.

API Access

Add-on — Requires Dashboard Subscription

$99/mo

5,000 API calls included. Additional at $0.05 each.

4 exposure metrics per strike (GEX, DEX, VEX, CEX)
5 participant types (MM, Firm, BD, Cust, PCust)
Call/put splits on GEX and DEX
Intraday timeline + historical access
All strikes and expiries in one response

Requires Dashboard Subscription

What You Get

Two Endpoints.
Every Number That Matters.

Per-strike exposure and intraday series. Filter by metric, participant, and expiry. Same CBOE C1 data the dashboard runs on.

GET/api/v1/strikes
1 credit

Per-strike exposure for one metric, one expiry, one participant type. All strikes included in a single response.

{
  "product": "SPX",
  "metric": "gex",
  "expiry": "0dte",
  "customer_type": "mm",
  "total": -4700000000,
  "data": [
    [5700, -1.2e9, -3e8, -9e8],
    [5705,  2.1e9,  1.5e9, 6e8],
    [5710, -500000, -200000, -300000]
  ],
  "fields": ["strike", "gex", "call_gex", "put_gex"]
}
GET/api/v1/timeline
1 credit

Intraday GEX and DEX series for the full trading day.

{
  "product": "SPX",
  "date": "2026-04-12",
  "data": [
    {"ts": "09:31", "gex": -2.1e9, "dex": -8e8},
    {"ts": "09:32", "gex": -1.9e9, "dex": -7e8},
    {"ts": "09:33", "gex": -2.4e9, "dex": -9e8}
  ]
}

Parameters

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

Documentation

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API Access | quantedOptions