curl --request GET \
  --url https://api.monaco.com/v1/opportunities/{opportunity_id}/contacts

import requests

url = "https://api.monaco.com/v1/opportunities/{opportunity_id}/contacts"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://api.monaco.com/v1/opportunities/{opportunity_id}/contacts', 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.monaco.com/v1/opportunities/{opportunity_id}/contacts",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($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.monaco.com/v1/opportunities/{opportunity_id}/contacts"

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

	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.monaco.com/v1/opportunities/{opportunity_id}/contacts")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.monaco.com/v1/opportunities/{opportunity_id}/contacts")

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

request = Net::HTTP::Get.new(url)

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

{
  "data": [
    {
      "contact_id": "550e8400-e29b-41d4-a716-446655440000",
      "source": "manual",
      "created_at": "2025-08-20T14:30:00Z",
      "email": "partner@consulting.com",
      "first_name": "Alex",
      "last_name": "Chen",
      "title": "Consulting Partner",
      "account_id": "550e8400-e29b-41d4-a716-446655440001"
    }
  ],
  "pagination": {
    "page": 1,
    "page_size": 50,
    "total_count": 1,
    "total_pages": 1
  },
  "meta": {
    "timestamp": "2026-04-21T12:00:00Z"
  }
}

{
  "error": {
    "code": "not_found",
    "message": "Resource not found"
  }
}