API — GEX

GEX by strike

Gamma exposure aggregated by strike. ?expiry=all (default) covers every expiry, ?expiry=0dte filters to today’s expiry only, and an explicit expiry token (e.g. 28MAR25) returns just that expiration.

Strike-axis filters (intersected when more than one is set):

strike_min / strike_max — absolute bounds.
moneyness_min / moneyness_max — strike/spot ratio bounds, e.g. 0.9..1.1 keeps the ATM ±10% slab.
spot_window_pct — symmetric window in percent (e.g. 5 for ±5% of spot). Combined by intersection with the others.

When any strike filter narrows the set, ranked_top_10 is rebuilt from the surviving strikes — the cached pre-filter ranking is not reused.

GET

gex

strike-profile

GEX by strike

curl --request GET \
  --url https://api.example.com/gex/strike-profile \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.example.com/gex/strike-profile"

headers = {"X-API-Key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.example.com/gex/strike-profile', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/gex/strike-profile",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/gex/strike-profile"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-API-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.example.com/gex/strike-profile")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/gex/strike-profile")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "data": {
    "expiry": "<string>",
    "strikes": [
      123
    ],
    "net_gex": [
      123
    ],
    "dte": 123,
    "call_gex": [
      123
    ],
    "put_gex": [
      123
    ],
    "call_oi": [
      123
    ],
    "put_oi": [
      123
    ],
    "total_oi": [
      123
    ],
    "ranked_top_10": [
      {
        "rank": 123,
        "strike": 123,
        "gex": 123,
        "abs_gex": 123
      }
    ],
    "filtered_strike_window": {
      "min": 123,
      "max": 123
    }
  },
  "meta": {
    "version": "<string>",
    "timestamp": "<string>",
    "request_id": "<string>",
    "symbol": "<string>",
    "spot_price": 123,
    "computed_at": "<string>",
    "freshness_seconds": 123,
    "source": [
      "<string>"
    ],
    "exchanges_filtered": [
      "<string>"
    ],
    "rate_limit": {},
    "extra": {}
  },
  "success": true
}

{
  "success": false,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Invalid API key"
  },
  "meta": {
    "version": "2.0",
    "timestamp": "2026-04-29T12:00:00Z"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": {}
  },
  "meta": {
    "version": "<string>",
    "timestamp": "<string>",
    "request_id": "<string>",
    "symbol": "<string>",
    "spot_price": 123,
    "computed_at": "<string>",
    "freshness_seconds": 123,
    "source": [
      "<string>"
    ],
    "exchanges_filtered": [
      "<string>"
    ],
    "rate_limit": {},
    "extra": {}
  },
  "success": false
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters",
    "details": {
      "errors": []
    }
  },
  "meta": {
    "version": "2.0",
    "timestamp": "2026-04-29T12:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "Rate limit exceeded. Try again later."
  },
  "meta": {
    "version": "2.0",
    "timestamp": "2026-04-29T12:00:00Z"
  }
}

Gamma exposure aggregated by strike. Filter by ?expiry=all|0dte|<token> and by strike window (strike_min/max, moneyness_min/max, spot_window_pct).

What is GEX?

Authorizations

X-API-Key

string

header

required

Your BackQuant API key (same key as v1)

Headers

X-API-Key

string | null

Query Parameters

symbol

enum<string>

default:BTCUSDT

Trading symbol: BTCUSDT, ETHUSDT, SOLUSDT, or HYPEUSDT.

Available options:

BTCUSDT,

ETHUSDT,

SOLUSDT,

HYPEUSDT

exchanges

string | null

Comma-separated venue filter

expiry

string

default:all

Which expiry to include: all for every expiry, 0dte for today's expiry only, or a specific date (YYYY-MM-DD) or Deribit token (28MAR25).

strike_min

number | null

Absolute lower strike bound

Required range: x >= 0

strike_max

number | null

Absolute upper strike bound

Required range: x >= 0

moneyness_min

number | null

Strike/spot lower bound (e.g. 0.9)

Required range: 0 <= x <= 10

moneyness_max

number | null

Strike/spot upper bound (e.g. 1.1)

Required range: 0 <= x <= 10

spot_window_pct

number | null

Symmetric strike window in % around spot (e.g. 5 for ±5%)

Required range: 0 <= x <= 200

Response

Successful Response

data

GexStrikeProfileData · object

required

Show child attributes

meta

V2Meta · object

required

The meta block returned alongside every v2 response.

Every field after version/timestamp is optional because endpoints attach different combinations — e.g. /v2/status skips symbol, the chain endpoint sets extra.filter_hash, etc. Listing them here means SDKs get a typed accessor for each instead of a generic meta: dict.

Show child attributes

success

boolean

default:true

GEX levels

GEX by expiry

GEX by strike

curl --request GET \
  --url https://api.example.com/gex/strike-profile \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.example.com/gex/strike-profile"

headers = {"X-API-Key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.example.com/gex/strike-profile', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/gex/strike-profile",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/gex/strike-profile"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-API-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.example.com/gex/strike-profile")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/gex/strike-profile")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "data": {
    "expiry": "<string>",
    "strikes": [
      123
    ],
    "net_gex": [
      123
    ],
    "dte": 123,
    "call_gex": [
      123
    ],
    "put_gex": [
      123
    ],
    "call_oi": [
      123
    ],
    "put_oi": [
      123
    ],
    "total_oi": [
      123
    ],
    "ranked_top_10": [
      {
        "rank": 123,
        "strike": 123,
        "gex": 123,
        "abs_gex": 123
      }
    ],
    "filtered_strike_window": {
      "min": 123,
      "max": 123
    }
  },
  "meta": {
    "version": "<string>",
    "timestamp": "<string>",
    "request_id": "<string>",
    "symbol": "<string>",
    "spot_price": 123,
    "computed_at": "<string>",
    "freshness_seconds": 123,
    "source": [
      "<string>"
    ],
    "exchanges_filtered": [
      "<string>"
    ],
    "rate_limit": {},
    "extra": {}
  },
  "success": true
}

{
  "success": false,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Invalid API key"
  },
  "meta": {
    "version": "2.0",
    "timestamp": "2026-04-29T12:00:00Z"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": {}
  },
  "meta": {
    "version": "<string>",
    "timestamp": "<string>",
    "request_id": "<string>",
    "symbol": "<string>",
    "spot_price": 123,
    "computed_at": "<string>",
    "freshness_seconds": 123,
    "source": [
      "<string>"
    ],
    "exchanges_filtered": [
      "<string>"
    ],
    "rate_limit": {},
    "extra": {}
  },
  "success": false
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters",
    "details": {
      "errors": []
    }
  },
  "meta": {
    "version": "2.0",
    "timestamp": "2026-04-29T12:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "Rate limit exceeded. Try again later."
  },
  "meta": {
    "version": "2.0",
    "timestamp": "2026-04-29T12:00:00Z"
  }
}

​See also

What is GEX?

Authorizations

Headers

Query Parameters

Response

See also