curl --request GET \
  --url https://astreus.ai/api/v1/countries/{iso}/series \
  --header 'X-API-KEY: <api-key>'

import requests

url = "https://astreus.ai/api/v1/countries/{iso}/series"

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/countries/{iso}/series', 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/countries/{iso}/series",
  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/countries/{iso}/series"

	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/countries/{iso}/series")
  .header("X-API-KEY", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://astreus.ai/api/v1/countries/{iso}/series")

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

{
  "history": [
    {
      "period": "2026-08-01",
      "value": 4.1
    },
    {
      "period": "2026-09-01",
      "value": 4.2
    }
  ],
  "frequency": "Monthly",
  "description": "The unemployment rate represents the number of unemployed as a percentage of the labor force. Labor force data are restricted to people 16 years of age and older, who currently reside in 1 of the 50 s…",
  "sourceName": "U.S. Bureau of Labor Statistics",
  "sourceLink": "https://www.bls.gov/",
  "source": {
    "name": "FRED",
    "fullName": "FRED · U.S. Bureau of Labor Statistics",
    "url": "https://fred.stlouisfed.org/series/UNRATE",
    "note": "Retrieved from FRED (Federal Reserve Bank of St. Louis); original source: U.S. Bureau of Labor Statistics — Employment Situation"
  },
  "title": "Unemployment Rate",
  "units": "Percent",
  "seasonalAdjustment": "Seasonally Adjusted",
  "window": {
    "from": null,
    "to": null,
    "limit": 2,
    "total": 944,
    "returned": 2,
    "olderTo": "2026-07-01"
  }
}

{
  "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>"
  ]
}