curl --request POST \
  --url https://api.instantly.ai/api/v2/oauth/microsoft/init \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.instantly.ai/api/v2/oauth/microsoft/init"

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

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

print(response.text)

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

fetch('https://api.instantly.ai/api/v2/oauth/microsoft/init', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

HttpResponse<String> response = Unirest.post("https://api.instantly.ai/api/v2/oauth/microsoft/init")
  .header("Authorization", "Bearer <token>")
  .asString();

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.instantly.ai/api/v2/oauth/microsoft/init",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  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.instantly.ai/api/v2/oauth/microsoft/init"

	req, _ := http.NewRequest("POST", 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))

}

{
  "session_id": "abc123def456",
  "auth_url": "https://login.microsoftonline.com/common/oauth2/v2.0/authorize?...",
  "expires_at": "2026-01-14T12:30:00.000Z"
}

{
  "statusCode": 429,
  "error": "Too Many Requests",
  "message": "Rate limit exceeded for OAuth session creation"
}

{
  "statusCode": 503,
  "error": "Service Unavailable",
  "message": "OAuth is temporarily unavailable, please retry shortly"
}