curl --request GET \
  --url https://api.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots \
  --header 'Authorization: Bearer YOUR_API_KEY'

import requests

url = "https://api.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots', 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.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($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.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots"

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

	req.Header.Add("Authorization", "Bearer <token>")

	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.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.teamfollowup.ai/api/native-calendar/calendars/{calendarId}/free-slots")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "success": true,
  "data": {
    "timezone": "America/Chicago",
    "slots": {
      "2026-09-24": {
        "slots": [
          "2026-09-24T14:00:00.000Z",
          "2026-09-24T14:30:00.000Z",
          "2026-09-24T15:00:00.000Z"
        ]
      },
      "2026-09-25": {
        "slots": [
          "2026-09-25T14:00:00.000Z"
        ]
      }
    }
  }
}

{
  "success": false,
  "error": "timezone is required"
}

{
  "success": false,
  "error": "Unauthorized"
}

{
  "success": false,
  "error": "calendar does not belong to this project"
}

{
  "success": false,
  "error": "calendar not found"
}

{
  "success": false,
  "error": "TooManyRequests"
}

{
  "success": false,
  "error": "Calendar request failed."
}

{
  "success": false,
  "error": "Calendar service is unreachable."
}