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

import requests

url = "https://api.messari.io/metrics/v1/markets"

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/v1/markets', 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/v1/markets",
  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/v1/markets"

	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/v1/markets")
  .header("X-Messari-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.messari.io/metrics/v1/markets")

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": "6071-140-68",
      "baseAsset": {
        "id": "4515ba15-2719-4183-b0ca-b9255d55b67e",
        "name": "USDC",
        "slug": "circle-usdc-stablecoin",
        "symbol": "USDC"
      },
      "baseAssetSector": "Stablecoins",
      "quoteAsset": {
        "id": "51f8ea5e-f426-4f40-939a-db7e05495374",
        "name": "Tether",
        "slug": "tether",
        "symbol": "USDT"
      },
      "quoteAssetSector": "Stablecoins",
      "exchange": {
        "id": "d8b0ea44-1963-451e-ac37-aead4ba3b4c7",
        "name": "Binance",
        "slug": "binance"
      },
      "network": null,
      "sectors": [
        "Stablecoins"
      ],
      "firstTradeAt": "2018-12-15T04:00:00Z",
      "lastTradeAt": "2026-08-25T01:53:00Z",
      "isNewMarket": false,
      "isRecentlyListed": false,
      "liveness": "live",
      "metrics": {
        "exchangeVolumePercentage24h": 30.9443843000696,
        "latestPrice24hOpen": 1.0001146574421833,
        "latestPrice24hHigh": 1.00108691224939,
        "latestPrice24hLow": 0.998843764114286,
        "latestPrice24hClose": 0.9999239113853846,
        "premiumDiscount": 0.0008230461030325513,
        "volume24h": 4424750740.452992,
        "tradeCount24h": 669801
      }
    },
    {
      "id": "128-6071-265",
      "baseAsset": {
        "id": "9034399e-e229-48ca-8ff3-5ea5fc599080",
        "name": "Zcash",
        "slug": "zcash",
        "symbol": "ZEC"
      },
      "baseAssetSector": "Cryptocurrency",
      "quoteAsset": {
        "id": "4515ba15-2719-4183-b0ca-b9255d55b67e",
        "name": "USDC",
        "slug": "circle-usdc-stablecoin",
        "symbol": "USDC"
      },
      "quoteAssetSector": "Stablecoins",
      "exchange": {
        "id": "2b482c0b-592c-47a3-bc24-33c8788feea7",
        "name": "Bitrue",
        "slug": "bitrue"
      },
      "network": null,
      "sectors": [
        "Cryptocurrency",
        "Stablecoins"
      ],
      "firstTradeAt": "2025-12-25T04:00:00Z",
      "lastTradeAt": "2026-08-25T01:53:00Z",
      "isNewMarket": false,
      "isRecentlyListed": false,
      "liveness": "live",
      "metrics": {
        "exchangeVolumePercentage24h": 38.0734001200449,
        "latestPrice24hOpen": 827.9676744692978,
        "latestPrice24hHigh": 869.2423560257628,
        "latestPrice24hLow": 797.7113310026093,
        "latestPrice24hClose": 831.2904666889657,
        "premiumDiscount": 0.14060152343539953,
        "volume24h": 3015111976.3514977,
        "tradeCount24h": 4657362
      }
    },
    {
      "id": "6057-140-68",
      "baseAsset": {
        "id": "1e31218a-e44e-4285-820c-8282ee222035",
        "name": "Bitcoin",
        "slug": "bitcoin",
        "symbol": "BTC"
      },
      "baseAssetSector": "Cryptocurrency",
      "quoteAsset": {
        "id": "51f8ea5e-f426-4f40-939a-db7e05495374",
        "name": "Tether",
        "slug": "tether",
        "symbol": "USDT"
      },
      "quoteAssetSector": "Stablecoins",
      "exchange": {
        "id": "d8b0ea44-1963-451e-ac37-aead4ba3b4c7",
        "name": "Binance",
        "slug": "binance"
      },
      "network": null,
      "sectors": [
        "Cryptocurrency",
        "Stablecoins"
      ],
      "firstTradeAt": "2017-08-17T05:00:00Z",
      "lastTradeAt": "2026-08-25T01:53:00Z",
      "isNewMarket": false,
      "isRecentlyListed": false,
      "liveness": "live",
      "metrics": {
        "exchangeVolumePercentage24h": 16.929235555820586,
        "latestPrice24hOpen": 76941.28223001234,
        "latestPrice24hHigh": 80002.3783316743,
        "latestPrice24hLow": 76677.26106967995,
        "latestPrice24hClose": 79562.31754820744,
        "premiumDiscount": 0.040390388297554355,
        "volume24h": 2420718629.737021,
        "tradeCount24h": 6532330
      }
    },
    {
      "id": "6057-140-265",
      "baseAsset": {
        "id": "1e31218a-e44e-4285-820c-8282ee222035",
        "name": "Bitcoin",
        "slug": "bitcoin",
        "symbol": "BTC"
      },
      "baseAssetSector": "Cryptocurrency",
      "quoteAsset": {
        "id": "51f8ea5e-f426-4f40-939a-db7e05495374",
        "name": "Tether",
        "slug": "tether",
        "symbol": "USDT"
      },
      "quoteAssetSector": "Stablecoins",
      "exchange": {
        "id": "2b482c0b-592c-47a3-bc24-33c8788feea7",
        "name": "Bitrue",
        "slug": "bitrue"
      },
      "network": null,
      "sectors": [
        "Cryptocurrency",
        "Stablecoins"
      ],
      "firstTradeAt": "2018-04-05T13:00:00Z",
      "lastTradeAt": "2026-08-25T01:53:00Z",
      "isNewMarket": false,
      "isRecentlyListed": false,
      "liveness": "live",
      "metrics": {
        "exchangeVolumePercentage24h": 29.625395838778573,
        "latestPrice24hOpen": 76929.39110455786,
        "latestPrice24hHigh": 80001.39812377431,
        "latestPrice24hLow": 76681.25144703439,
        "latestPrice24hClose": 79552.88805637053,
        "premiumDiscount": 0.028533895505518665,
        "volume24h": 2346096894.8404427,
        "tradeCount24h": 228986
      }
    },
    {
      "id": "6057-140-113",
      "baseAsset": {
        "id": "1e31218a-e44e-4285-820c-8282ee222035",
        "name": "Bitcoin",
        "slug": "bitcoin",
        "symbol": "BTC"
      },
      "baseAssetSector": "Cryptocurrency",
      "quoteAsset": {
        "id": "51f8ea5e-f426-4f40-939a-db7e05495374",
        "name": "Tether",
        "slug": "tether",
        "symbol": "USDT"
      },
      "quoteAssetSector": "Stablecoins",
      "exchange": {
        "id": "bd9ed9e8-b95f-43e8-b156-654e62fc556f",
        "name": "XT.com",
        "slug": "xt-com"
      },
      "network": null,
      "sectors": [
        "Cryptocurrency",
        "Stablecoins"
      ],
      "firstTradeAt": "2021-11-02T14:00:00Z",
      "lastTradeAt": "2026-08-25T01:53:00Z",
      "isNewMarket": false,
      "isRecentlyListed": false,
      "liveness": "live",
      "metrics": {
        "exchangeVolumePercentage24h": 28.817619918534813,
        "latestPrice24hOpen": 76977.5756650622,
        "latestPrice24hHigh": 80001.3881216529,
        "latestPrice24hLow": 76681.21144325139,
        "latestPrice24hClose": 79552.84972635316,
        "premiumDiscount": 0.028485699952403496,
        "volume24h": 1429127877.1373124,
        "tradeCount24h": 153815
      }
    }
  ],
  "metadata": {
    "pageSize": 10,
    "page": 1,
    "totalRows": 252802,
    "totalPages": 25281
  }
}

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

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

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