API Monitor do Diário Oficial da União

import requests

r = requests.post(
    "https://brasildados--dou-monitor.apify.actor/search",
    headers={"Authorization": "Bearer SEU_APIFY_TOKEN"},
    json={"q": ["Petrobras", "Vale S.A."], "s": "DO3"},
)
for pub in r.json():
    print(pub["titulo"], pub["data"])

const res = await fetch(
  "https://brasildados--dou-monitor.apify.actor/search",
  {
    method: "POST",
    headers: { "Authorization": "Bearer SEU_APIFY_TOKEN" },
    body: JSON.stringify({ q: ["Petrobras", "Vale S.A."], s: "DO3" }),
  }
);
const publicacoes = await res.json();
publicacoes.forEach(p => console.log(p.titulo, p.data));

<?php
$ch = curl_init("https://brasildados--dou-monitor.apify.actor/search");
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => [
        "Authorization: Bearer SEU_APIFY_TOKEN",
        "Content-Type: application/json",
    ],
    CURLOPT_POSTFIELDS => '{"q":["Petrobras","Vale S.A."],"s":"DO3"}',
]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);
print_r($data);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://brasildados--dou-monitor.apify.actor/search"))
    .header("Authorization", "Bearer SEU_APIFY_TOKEN")
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString("{\"q\":[\"Petrobras\",\"Vale S.A.\"],\"s\":\"DO3\"}"))
    .build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

using System.Net.Http;
using System.Text;

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer SEU_APIFY_TOKEN");
var content = new StringContent(
    "{\"q\":[\"Petrobras\",\"Vale S.A.\"],\"s\":\"DO3\"}",
    Encoding.UTF8,
    "application/json");
var response = await client.PostAsync("https://brasildados--dou-monitor.apify.actor/search", content);
Console.WriteLine(await response.Content.ReadAsStringAsync());

package main

import (
	"bytes"
	"fmt"
	"io"
	"net/http"
)

func main() {
	body := bytes.NewBufferString(`{"q":["Petrobras","Vale S.A."],"s":"DO3"}`)
	req, _ := http.NewRequest("POST", "https://brasildados--dou-monitor.apify.actor/search", body)
	req.Header.Set("Authorization", "Bearer SEU_APIFY_TOKEN")
	req.Header.Set("Content-Type", "application/json")
	res, _ := http.DefaultClient.Do(req)
	defer res.Body.Close()
	data, _ := io.ReadAll(res.Body)
	fmt.Println(string(data))
}