curl --request GET \
  --url https://api.messari.io/metrics/v2/protocols/etfs/assets \
  --header 'X-Messari-API-Key: <api-key>'

import requests

url = "https://api.messari.io/metrics/v2/protocols/etfs/assets"

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

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

print(response.text)

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

fetch('https://api.messari.io/metrics/v2/protocols/etfs/assets', 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.messari.io/metrics/v2/protocols/etfs/assets",
  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-Messari-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.messari.io/metrics/v2/protocols/etfs/assets"

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

	req.Header.Add("X-Messari-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.messari.io/metrics/v2/protocols/etfs/assets")
  .header("X-Messari-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.messari.io/metrics/v2/protocols/etfs/assets")

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

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

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

{
  "error": null,
  "data": {
    "data": [
      {
        "id": "bitcoin",
        "slug": "bitcoin",
        "name": "bitcoin",
        "asOf": 1787270400,
        "metrics": {
          "typeSpotAumUsd": 113171725902,
          "typeSpotFlowUsd": 687188302.0000001,
          "typeSpotProductCount": 135,
          "typeFuturesAumUsd": 3679822902,
          "typeFuturesFlowUsd": 23563391,
          "typeFuturesProductCount": 6,
          "typeSpotUnitedstatesAumUsd": 98150728001,
          "typeSpotUnitedstatesFlowUsd": 643295381,
          "typeSpotUnitedstatesProductCount": 59,
          "typeSpotEuropeAumUsd": 9599061196,
          "typeSpotEuropeFlowUsd": 31334458,
          "typeSpotEuropeProductCount": 35,
          "typeSpotApacAumUsd": 1056947400,
          "typeSpotApacFlowUsd": 3399323.0000000005,
          "typeSpotApacProductCount": 15,
          "strategyDeltaoneAumUsd": 112585118402,
          "strategyDeltaoneFlowUsd": 686197353,
          "strategyDeltaoneProductCount": 81,
          "strategyLeveragedAumUsd": 1754585085,
          "strategyLeveragedFlowUsd": 1756011,
          "strategyLeveragedProductCount": 8,
          "totalVolumeUsd": null,
          "volumeUnitedstatesUsd": null,
          "volumeEuropeUsd": null,
          "volumeApacUsd": null
        }
      },
      {
        "id": "ethereum",
        "slug": "ethereum",
        "name": "ethereum",
        "asOf": 1787270400,
        "metrics": {
          "typeSpotAumUsd": 17676473555,
          "typeSpotFlowUsd": 241183836,
          "typeSpotProductCount": 69,
          "typeFuturesAumUsd": 1560187673.0000002,
          "typeFuturesFlowUsd": 10294644,
          "typeFuturesProductCount": 6,
          "typeSpotUnitedstatesAumUsd": 14324198864,
          "typeSpotUnitedstatesFlowUsd": 228336043,
          "typeSpotUnitedstatesProductCount": 22,
          "typeSpotEuropeAumUsd": 2238108620,
          "typeSpotEuropeFlowUsd": 2179470,
          "typeSpotEuropeProductCount": 21,
          "typeSpotApacAumUsd": 151056637,
          "typeSpotApacFlowUsd": -237183,
          "typeSpotApacProductCount": 9,
          "strategyDeltaoneAumUsd": 17475072318,
          "strategyDeltaoneFlowUsd": 242624178,
          "strategyDeltaoneProductCount": 55,
          "strategyLeveragedAumUsd": 1444888591,
          "strategyLeveragedFlowUsd": 1771349,
          "strategyLeveragedProductCount": 8,
          "totalVolumeUsd": null,
          "volumeUnitedstatesUsd": null,
          "volumeEuropeUsd": null,
          "volumeApacUsd": null
        }
      },
      {
        "id": "multi-asset",
        "slug": "",
        "name": "multi-asset",
        "asOf": 1787270400,
        "metrics": {
          "typeSpotAumUsd": 4493114907,
          "typeSpotFlowUsd": 107564966,
          "typeSpotProductCount": 53,
          "typeFuturesAumUsd": 2648808,
          "typeFuturesFlowUsd": 0,
          "typeFuturesProductCount": 2,
          "typeSpotUnitedstatesAumUsd": 2399308710,
          "typeSpotUnitedstatesFlowUsd": 107637388,
          "typeSpotUnitedstatesProductCount": 14,
          "typeSpotEuropeAumUsd": 1881407857,
          "typeSpotEuropeFlowUsd": -602121,
          "typeSpotEuropeProductCount": 28,
          "typeSpotApacAumUsd": 128823025,
          "typeSpotApacFlowUsd": null,
          "typeSpotApacProductCount": 2,
          "strategyDeltaoneAumUsd": 4300898856,
          "strategyDeltaoneFlowUsd": 107564966,
          "strategyDeltaoneProductCount": 53,
          "strategyLeveragedAumUsd": null,
          "strategyLeveragedFlowUsd": null,
          "strategyLeveragedProductCount": null,
          "totalVolumeUsd": null,
          "volumeUnitedstatesUsd": null,
          "volumeEuropeUsd": null,
          "volumeApacUsd": null
        }
      },
      {
        "id": "solana",
        "slug": "solana",
        "name": "solana",
        "asOf": 1787270400,
        "metrics": {
          "typeSpotAumUsd": 2454519267,
          "typeSpotFlowUsd": 13567592,
          "typeSpotProductCount": 31,
          "typeFuturesAumUsd": 299413018,
          "typeFuturesFlowUsd": -3403263.0000000005,
          "typeFuturesProductCount": 4,
          "typeSpotUnitedstatesAumUsd": 1188685862,
          "typeSpotUnitedstatesFlowUsd": 7770985,
          "typeSpotUnitedstatesProductCount": 10,
          "typeSpotEuropeAumUsd": 1099453833,
          "typeSpotEuropeFlowUsd": 5610037,
          "typeSpotEuropeProductCount": 11,
          "typeSpotApacAumUsd": 7548530,
          "typeSpotApacFlowUsd": 0,
          "typeSpotApacProductCount": 1,
          "strategyDeltaoneAumUsd": 2563767819,
          "strategyDeltaoneFlowUsd": 14384233.999999998,
          "strategyDeltaoneProductCount": 32,
          "strategyLeveragedAumUsd": 188586798,
          "strategyLeveragedFlowUsd": -4219905,
          "strategyLeveragedProductCount": 2,
          "totalVolumeUsd": null,
          "volumeUnitedstatesUsd": null,
          "volumeEuropeUsd": null,
          "volumeApacUsd": null
        }
      },
      {
        "id": "ripple",
        "slug": "",
        "name": "ripple",
        "asOf": 1787270400,
        "metrics": {
          "typeSpotAumUsd": 2416763651,
          "typeSpotFlowUsd": 17298506,
          "typeSpotProductCount": 21,
          "typeFuturesAumUsd": 190352441,
          "typeFuturesFlowUsd": 557926,
          "typeFuturesProductCount": 2,
          "typeSpotUnitedstatesAumUsd": 1375248369,
          "typeSpotUnitedstatesFlowUsd": 15340165,
          "typeSpotUnitedstatesProductCount": 7,
          "typeSpotEuropeAumUsd": 870738844,
          "typeSpotEuropeFlowUsd": 2008631,
          "typeSpotEuropeProductCount": 8,
          "typeSpotApacAumUsd": null,
          "typeSpotApacFlowUsd": null,
          "typeSpotApacProductCount": null,
          "strategyDeltaoneAumUsd": 2513228126,
          "strategyDeltaoneFlowUsd": 15549117,
          "strategyDeltaoneProductCount": 21,
          "strategyLeveragedAumUsd": 80934545,
          "strategyLeveragedFlowUsd": 1753750,
          "strategyLeveragedProductCount": 1,
          "totalVolumeUsd": null,
          "volumeUnitedstatesUsd": null,
          "volumeEuropeUsd": null,
          "volumeApacUsd": null
        }
      }
    ],
    "metadata": {
      "pageSize": 100,
      "page": 1,
      "totalRows": 60,
      "totalPages": 1
    }
  }
}

{
  "data": "<unknown>",
  "error": "<string>"
}

{
  "data": "<unknown>",
  "error": "<string>"
}

{
  "data": "<unknown>",
  "error": "<string>"
}