API de consultas RUC y DNI del Perú

const response = await fetch(
  "https://app.apiinti.dev/api/v1/ruc/20100017491",
  {
    headers: {
      "Authorization": "Bearer YOUR_API_KEY"
    }
  }
);

const data = await response.json();
console.log(data.razonSocial); // "SUNAT"

import requests

response = requests.get(
    "https://app.apiinti.dev/api/v1/ruc/20100017491",
    headers={"Authorization": "Bearer YOUR_API_KEY"}
)

data = response.json()
print(data["razonSocial"])  # "SUNAT"

<?php
$ch = curl_init("https://app.apiinti.dev/api/v1/ruc/20100017491");
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer YOUR_API_KEY"
]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = json_decode(curl_exec($ch), true);
echo $response["razonSocial"]; // "SUNAT"

req, _ := http.NewRequest("GET",
    "https://app.apiinti.dev/api/v1/ruc/20100017491", nil)
req.Header.Set("Authorization", "Bearer YOUR_API_KEY")

resp, _ := http.DefaultClient.Do(req)
defer resp.Body.Close()

var data map[string]interface{}
json.NewDecoder(resp.Body).Decode(&data)
fmt.Println(data["razonSocial"]) // "SUNAT"