curl --request GET \
  --url https://astreus.ai/api/v1/companies \
  --header 'X-API-KEY: <api-key>'

import requests

url = "https://astreus.ai/api/v1/companies"

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://astreus.ai/api/v1/companies', 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://astreus.ai/api/v1/companies",
  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://astreus.ai/api/v1/companies"

	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://astreus.ai/api/v1/companies")
  .header("X-API-KEY", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://astreus.ai/api/v1/companies")

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

{
  "companies": [
    {
      "id": "33c210d5-7e67-436a-b240-96ba73998b12",
      "name": "Apple Inc.",
      "legal_name": "Apple Inc.",
      "cik": "0000320193",
      "ticker": "AAPL",
      "exchange": "Nasdaq",
      "country_code": "US",
      "sector": "Technology",
      "industry": "Consumer Electronics",
      "price": 344.63,
      "listing_currency": "USD",
      "change_percent": -1.22668,
      "volume": 67842804,
      "market_cap": 5034686918690,
      "pe_ratio": 39.5672,
      "fx_per_usd": null,
      "logo_png_s3_key": "logos/cik=0000320193/512.png",
      "website": "https://www.apple.com",
      "latest_filing_date": "2026-07-31",
      "brand_mark": "https://cdn.brandfetch.io/apple.com/icon?c=1idQJ_8ukVnXwK_PLYs&fallback=404",
      "brand_mark_checked": true,
      "share_classes": null,
      "routeKey": "AAPL"
    },
    {
      "id": "3dc3b782-6b1c-455e-80ff-d4e8f07a09f3",
      "name": "NVIDIA CORP",
      "legal_name": "NVIDIA CORP",
      "cik": "0001045810",
      "ticker": "NVDA",
      "exchange": "Nasdaq",
      "country_code": "US",
      "sector": "Technology",
      "industry": "Semiconductors",
      "price": 204.64,
      "listing_currency": "USD",
      "change_percent": -4.22166,
      "volume": 165923799,
      "market_cap": 4941442080000,
      "pe_ratio": 25.871,
      "fx_per_usd": null,
      "logo_png_s3_key": "logos/cik=0001045810/512.png",
      "website": "https://www.nvidia.com",
      "latest_filing_date": "2026-08-26",
      "brand_mark": "https://cdn.brandfetch.io/nvidia.com/icon?c=1idQJ_8ukVnXwK_PLYs&fallback=404",
      "brand_mark_checked": true,
      "share_classes": null,
      "routeKey": "NVDA"
    }
  ],
  "total": 1665,
  "countries": [
    {
      "country_code": "US",
      "count": 623
    },
    {
      "country_code": "SA",
      "count": 376
    }
  ]
}

{
  "error": "<string>",
  "code": "unknown_parameter",
  "param": "<string>",
  "allowed": [
    "<string>"
  ]
}

{
  "error": "<string>",
  "code": "unknown_parameter",
  "param": "<string>",
  "allowed": [
    "<string>"
  ]
}

{
  "error": "<string>",
  "code": "unknown_parameter",
  "param": "<string>",
  "allowed": [
    "<string>"
  ]
}

{
  "error": "<string>",
  "code": "unknown_parameter",
  "param": "<string>",
  "allowed": [
    "<string>"
  ]
}