curl --request GET \
  --url https://api.cal.id/availability/ \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.cal.id/availability/"

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

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

print(response.text)

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

fetch('https://api.cal.id/availability/', 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.cal.id/availability/",
  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.cal.id/availability/"

	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.cal.id/availability/")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cal.id/availability/")

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": {
    "busy": [
      {
        "start": "Mon, 04 May 2026 10:00:00 GMT",
        "end": "Mon, 04 May 2026 10:30:00 GMT",
        "title": "Weekly sync",
        "source": "Google Calendar"
      }
    ],
    "timeZone": "Europe/London",
    "dateRanges": [
      {
        "start": "Mon, 04 May 2026 09:00:00 GMT",
        "end": "Mon, 04 May 2026 10:00:00 GMT"
      },
      {
        "start": "Mon, 04 May 2026 10:30:00 GMT",
        "end": "Mon, 04 May 2026 17:00:00 GMT"
      }
    ],
    "oooExcludedDateRanges": [
      {
        "start": "Mon, 04 May 2026 09:00:00 GMT",
        "end": "Mon, 04 May 2026 17:00:00 GMT"
      }
    ],
    "workingHours": [
      {
        "days": [
          1,
          2,
          3,
          4,
          5
        ],
        "startTime": 540,
        "endTime": 1020,
        "userId": 4021
      }
    ],
    "dateOverrides": [],
    "currentSeats": null,
    "datesOutOfOffice": {}
  },
  "message": "Availability retrieved"
}

{
  "success": false,
  "message": "<string>",
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "success": false,
  "message": "<string>",
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "success": false,
  "message": "Rate limit exceeded",
  "error": {
    "code": "TOO_MANY_REQUESTS",
    "message": "Too many requests. Please retry after the rate limit window resets."
  }
}

{
  "success": false,
  "message": "<string>",
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}