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

import requests

url = "https://api.messari.io/metrics/v2/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/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/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/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/assets")
  .header("X-Messari-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.messari.io/metrics/v2/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": "1e31218a-e44e-4285-820c-8282ee222035",
      "name": "Bitcoin",
      "slug": "bitcoin",
      "symbol": "BTC",
      "category": "Cryptocurrency",
      "sector": "Cryptocurrency",
      "sectorV2": [
        "Networks"
      ],
      "subSectorV2": [
        "Layer-1"
      ],
      "tags": [
        "Proof-of-Work"
      ],
      "rank": 1,
      "firstPriceAt": "2010-07-21T23:00:00Z",
      "hasDiligence": true,
      "hasIntel": true,
      "hasMarketData": true,
      "hasNews": true,
      "hasProposals": false,
      "hasResearch": true,
      "hasTokenUnlocks": true,
      "hasFundraising": true,
      "coveredByMonitoring": true
    },
    {
      "id": "21c795f5-1bfd-40c3-858e-e9d7e820c6d0",
      "name": "Ethereum",
      "slug": "ethereum",
      "symbol": "ETH",
      "category": "Networks",
      "sector": "Smart Contract Platform",
      "sectorV2": [
        "Networks"
      ],
      "subSectorV2": [
        "Layer-1"
      ],
      "tags": [
        "EVM",
        "Proof-of-Stake",
        "Stakeable"
      ],
      "rank": 2,
      "firstPriceAt": "2015-08-07T17:15:00Z",
      "hasDiligence": true,
      "hasIntel": true,
      "hasMarketData": true,
      "hasNews": true,
      "hasProposals": false,
      "hasResearch": true,
      "hasTokenUnlocks": true,
      "hasFundraising": true,
      "coveredByMonitoring": true
    },
    {
      "id": "51f8ea5e-f426-4f40-939a-db7e05495374",
      "name": "Tether",
      "slug": "tether",
      "symbol": "USDT",
      "category": "Cryptocurrency",
      "sector": "Stablecoins",
      "sectorV2": [
        "CeFi",
        "Stablecoins"
      ],
      "subSectorV2": [
        "Fiat-backed Stablecoin",
        "U.S. Dollar Stablecoin",
        "Centralized Issuer"
      ],
      "tags": [
        "Centralized Issuer",
        "U.S. Dollar Stablecoin"
      ],
      "rank": 3,
      "firstPriceAt": "2013-12-27T19:05:00Z",
      "hasDiligence": true,
      "hasIntel": true,
      "hasMarketData": true,
      "hasNews": true,
      "hasProposals": false,
      "hasResearch": true,
      "hasTokenUnlocks": false,
      "hasFundraising": true,
      "coveredByMonitoring": true
    },
    {
      "id": "97775be0-2608-4720-b7af-f85b24c7eb2d",
      "name": "XRP",
      "slug": "xrp",
      "symbol": "XRP",
      "category": "Financial Services",
      "sector": "Payments",
      "sectorV2": [
        "CeFi",
        "Networks"
      ],
      "subSectorV2": [
        "Centralized Payments",
        "Layer-1"
      ],
      "tags": [
        "SEC Alleged Securities"
      ],
      "rank": 4,
      "firstPriceAt": "2015-01-26T08:25:00Z",
      "hasDiligence": true,
      "hasIntel": true,
      "hasMarketData": true,
      "hasNews": true,
      "hasProposals": false,
      "hasResearch": true,
      "hasTokenUnlocks": true,
      "hasFundraising": true,
      "coveredByMonitoring": true
    },
    {
      "id": "7dc551ba-cfed-4437-a027-386044415e3e",
      "name": "BNB",
      "slug": "binance-coin",
      "symbol": "BNB",
      "category": "Networks",
      "sector": "Smart Contract Platform",
      "sectorV2": [
        "Others",
        "CeFi",
        "Networks"
      ],
      "subSectorV2": [
        "SEC Alleged Securities",
        "Centralized Exchange",
        "Layer-1"
      ],
      "tags": [
        "CeFi",
        "Centralized Exchange",
        "Cosmos SDK",
        "EVM",
        "SEC Alleged Securities"
      ],
      "rank": 5,
      "firstPriceAt": "2017-07-14T04:00:00Z",
      "hasDiligence": true,
      "hasIntel": true,
      "hasMarketData": true,
      "hasNews": true,
      "hasProposals": false,
      "hasResearch": true,
      "hasTokenUnlocks": true,
      "hasFundraising": true,
      "coveredByMonitoring": true
    }
  ],
  "metadata": {
    "pageSize": 3,
    "page": 1,
    "totalRows": 39893,
    "totalPages": 13298
  }
}

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

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

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