curl --request GET \
  --url https://api.webacy.com/rwa/hci \
  --header 'x-api-key: <api-key>'

import requests

url = "https://api.webacy.com/rwa/hci"

headers = {"x-api-key": "<api-key>"}

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

print(response.text)

const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.webacy.com/rwa/hci', 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.webacy.com/rwa/hci",
  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-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.webacy.com/rwa/hci"

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

	req.Header.Add("x-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.webacy.com/rwa/hci")
  .header("x-api-key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.webacy.com/rwa/hci")

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

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

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

{
  "data": [
    {
      "chain": "eth",
      "address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "symbol": "USDC",
      "name": "USD Coin",
      "holderConcentration": {
        "top10": {
          "index": 0.421,
          "topSharePct": 62.3,
          "riskBand": "high"
        },
        "top30": {
          "index": 0.612,
          "topSharePct": 78.5,
          "riskBand": "extreme"
        },
        "holderCount": 2341847
      }
    },
    {
      "chain": "eth",
      "address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
      "symbol": "USDT",
      "name": "Tether USD",
      "holderConcentration": {
        "top10": {
          "index": 0.183,
          "topSharePct": 41.7,
          "riskBand": "low"
        },
        "top30": {
          "index": 0.241,
          "topSharePct": 55.2,
          "riskBand": "medium"
        },
        "holderCount": 5892341
      }
    }
  ],
  "meta": {
    "generatedAt": "2026-04-24T03:00:00Z",
    "stale": false,
    "page": 1,
    "pageSize": 50,
    "total": 749,
    "totalPages": 15,
    "totalUnfiltered": 749,
    "byRiskBand": {
      "low": 312,
      "medium": 187,
      "high": 198,
      "extreme": 52
    },
    "riskBandThresholds": {
      "low": [
        0,
        0.2
      ],
      "medium": [
        0.2,
        0.4
      ],
      "high": [
        0.4,
        0.6
      ],
      "extreme": [
        0.6,
        1
      ]
    }
  }
}

{
  "message": "Unauthorized"
}

{
  "x402Version": 1,
  "error": "payment required"
}