curl --request GET \
  --url 'https://api.glassmarkets.io/v2/metrics/header-summary/?asset=BTC' \
  --header 'Authorization: ApiKey <key>'

import requests

url = "https://api.glassmarkets.io/v2/metrics/header-summary/?asset=BTC"

headers = {"Authorization": "ApiKey <key>"}

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

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'ApiKey <key>'}};

fetch('https://api.glassmarkets.io/v2/metrics/header-summary/?asset=BTC', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.glassmarkets.io/v2/metrics/header-summary/?asset=BTC"

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

	req.Header.Add("Authorization", "ApiKey <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.glassmarkets.io/v2/metrics/header-summary/?asset=BTC")
  .header("Authorization", "ApiKey <key>")
  .asString();