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

import requests

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

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/lending', 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/lending",
  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/lending"

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

require 'uri'
require 'net/http'

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

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": "675b85dc-85a1-4096-9600-212e90a56e9a",
        "name": "Aave",
        "slug": "aave",
        "activity": {
          "tvl24HourUsd": 29644236992.45312,
          "activeAddresses24Hour": 9096,
          "fees24HourUsd": 1005532.5888053217
        },
        "lending": {
          "feesSupplySide24HourUsd": 859553.4605243559,
          "tokenIncentives24HourUsd": 21697.08316466706,
          "expenses24HourUsd": 21697.08316466706,
          "netDeposits24HourUsd": 29644236992.453125,
          "treasuryUsd": 155379210.9274561,
          "borrowedUsd": 12314767139.445177,
          "depositsUsd": 29279393027.23823,
          "interest24HourUsd": 1065732.8966607037,
          "netInterestIncome24HourUsd": 140150.357697946,
          "flashLoanFees24HourUsd": 308.6610760025816,
          "liquidationFees24HourUsd": 353.1451649243394,
          "royalties24HourUsd": 0,
          "instances": [
            {
              "productSlug": "aave-v2",
              "chain": "avalanche_c"
            },
            {
              "productSlug": "aave-v2",
              "chain": "ethereum"
            },
            {
              "productSlug": "aave-v2",
              "chain": "polygon"
            },
            {
              "productSlug": "aave-v3",
              "chain": "arbitrum"
            },
            {
              "productSlug": "aave-v3",
              "chain": "avalanche_c"
            }
          ]
        }
      },
      {
        "id": "ed659e93-6de9-4c95-8e9c-4ae0e3889826",
        "name": "Maple Finance (legacy)",
        "slug": "maple-finance",
        "activity": {
          "tvl24HourUsd": 4965571084.522648,
          "activeAddresses24Hour": 81,
          "fees24HourUsd": 93062.55899536864
        },
        "lending": {
          "feesSupplySide24HourUsd": 84353.63658272567,
          "tokenIncentives24HourUsd": 0,
          "expenses24HourUsd": 0,
          "netDeposits24HourUsd": 4965571084.522648,
          "treasuryUsd": 10661279.95171457,
          "borrowedUsd": 1256444793.85,
          "depositsUsd": 1914467523.741801,
          "interest24HourUsd": 3458.8631072307467,
          "netInterestIncome24HourUsd": 392.33975866613287,
          "flashLoanFees24HourUsd": 0,
          "liquidationFees24HourUsd": 0,
          "royalties24HourUsd": 0,
          "instances": [
            {
              "productSlug": "AQRU Maple Pool USDC1",
              "chain": "ethereum"
            },
            {
              "productSlug": "High Yield Corporate Loan Maple",
              "chain": "ethereum"
            },
            {
              "productSlug": "High Yield Secured Lending Mapl",
              "chain": "ethereum"
            },
            {
              "productSlug": "Icebreaker Maple Pool USDC1",
              "chain": "ethereum"
            },
            {
              "productSlug": "Laser Maple Pool USDC.k1",
              "chain": "ethereum"
            }
          ]
        }
      },
      {
        "id": "21ef8a1b-7b6d-47a8-ac7e-b3c1aac3905b",
        "name": "Fluid",
        "slug": "fluid-instadapp",
        "activity": {
          "tvl24HourUsd": 3716478427.775154,
          "activeAddresses24Hour": 221,
          "fees24HourUsd": 109236.90709536457
        },
        "lending": {
          "feesSupplySide24HourUsd": 89801.34045600054,
          "tokenIncentives24HourUsd": 0,
          "expenses24HourUsd": 0,
          "netDeposits24HourUsd": 3716478427.775154,
          "treasuryUsd": 21521398.073295925,
          "borrowedUsd": 1693841512.1890006,
          "depositsUsd": 1553580831.702333,
          "interest24HourUsd": 112949.97395050453,
          "netInterestIncome24HourUsd": 11294.997395050459,
          "flashLoanFees24HourUsd": 0,
          "liquidationFees24HourUsd": 0,
          "royalties24HourUsd": 0,
          "instances": [
            {
              "productSlug": "fluid-lend",
              "chain": "arbitrum"
            },
            {
              "productSlug": "fluid-lend",
              "chain": "base"
            },
            {
              "productSlug": "fluid-lend",
              "chain": "ethereum"
            },
            {
              "productSlug": "fluid-lend",
              "chain": "plasma"
            },
            {
              "productSlug": "fluid-lend",
              "chain": "polygon"
            }
          ]
        }
      },
      {
        "id": "b4a4024c-14c1-4e90-b092-b27cb58b7521",
        "name": "Compound",
        "slug": "compound",
        "activity": {
          "tvl24HourUsd": 2006553536.6788042,
          "activeAddresses24Hour": 950,
          "fees24HourUsd": 76449.08558985304
        },
        "lending": {
          "feesSupplySide24HourUsd": 69266.00360788913,
          "tokenIncentives24HourUsd": 3.135292599352507,
          "expenses24HourUsd": 3.135292599352507,
          "netDeposits24HourUsd": 2006553536.6788042,
          "treasuryUsd": 7891706.535902665,
          "borrowedUsd": 614497131.7197222,
          "depositsUsd": 2097426946.1082914,
          "interest24HourUsd": 66272.07216147125,
          "netInterestIncome24HourUsd": 6426.247422491963,
          "flashLoanFees24HourUsd": 0,
          "liquidationFees24HourUsd": 356,
          "royalties24HourUsd": 0,
          "instances": [
            {
              "productSlug": "compound-v2",
              "chain": "ethereum"
            },
            {
              "productSlug": "compound-v3",
              "chain": "arbitrum"
            },
            {
              "productSlug": "compound-v3",
              "chain": "base"
            },
            {
              "productSlug": "compound-v3",
              "chain": "ethereum"
            },
            {
              "productSlug": "compound-v3",
              "chain": "linea"
            }
          ]
        }
      },
      {
        "id": "650fae24-3873-4399-95fe-014f6b561c56",
        "name": "Venus",
        "slug": "venus",
        "activity": {
          "tvl24HourUsd": 1706664595.5945313,
          "activeAddresses24Hour": 509,
          "fees24HourUsd": 29784.894341857347
        },
        "lending": {
          "feesSupplySide24HourUsd": 23817.09203175078,
          "tokenIncentives24HourUsd": 303.18565755128265,
          "expenses24HourUsd": 303.18565755128265,
          "netDeposits24HourUsd": 1706664595.5945313,
          "treasuryUsd": 64341966.00401435,
          "borrowedUsd": 437832748.27629495,
          "depositsUsd": 1688217071.0929296,
          "interest24HourUsd": 26096.541122420236,
          "netInterestIncome24HourUsd": 4542.41900397322,
          "flashLoanFees24HourUsd": 0,
          "liquidationFees24HourUsd": 2886.8646855390875,
          "royalties24HourUsd": 0,
          "instances": [
            {
              "productSlug": "venus-flux",
              "chain": "bnb"
            },
            {
              "productSlug": "venus",
              "chain": "arbitrum"
            },
            {
              "productSlug": "venus",
              "chain": "base"
            },
            {
              "productSlug": "venus",
              "chain": "bnb"
            },
            {
              "productSlug": "venus",
              "chain": "ethereum"
            }
          ]
        }
      }
    ],
    "metadata": {
      "pageSize": 10,
      "page": 1,
      "totalRows": 15,
      "totalPages": 2
    }
  }
}

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

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

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