curl --request GET \
  --url https://api.messari.io/intel/v1/assets \
  --header 'X-Messari-API-Key: <api-key>'

import requests

url = "https://api.messari.io/intel/v1/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/intel/v1/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/intel/v1/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/intel/v1/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/intel/v1/assets")
  .header("X-Messari-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.messari.io/intel/v1/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": [
    {
      "id": "000b948f-a246-4c10-bddd-066b7c4fb3a4",
      "name": "DaxxCoin",
      "slug": "daxxcoin",
      "symbol": "DAXX"
    },
    {
      "id": "005a55a6-c89a-4ad7-b397-482353303186",
      "name": "StormX",
      "slug": "storm",
      "symbol": "STMX"
    },
    {
      "id": "007fe708-6ace-499b-a999-dcaa45e0eaf5",
      "name": "Zilliqa",
      "slug": "zilliqa",
      "symbol": "ZIL"
    },
    {
      "id": "00aa12c6-bc8f-4f51-b91e-abc189ef57da",
      "name": "Metal",
      "slug": "metal",
      "symbol": "MTL"
    },
    {
      "id": "00af9860-7bd6-4a24-a8c6-0b6136ab03f9",
      "name": "SpaceChain",
      "slug": "spacechain",
      "symbol": "SPCV2"
    }
  ],
  "metadata": {
    "limit": 10,
    "page": 1,
    "totalRows": 1193,
    "totalPages": 120
  }
}

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

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

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