Authenticate-SFMC-With-Response

POST URL - https://xxxxxx.auth.marketingcloudapis.com/v2/token

Header :
Key - Content-Type
Value - application/json

Body:
 {
   "grant_type": "client_credentials",
   "client_id": "Your Client Id",
   "client_secret": "Your Client Secret",
   "account_id": "MID"
}

Response:

{
    "access_token": "Your Access Token",
    "token_type": "Bearer",
    "expires_in": 1079,
    "scope": "offline documents_and_images_read documents_and_images_write saved_content_read saved_content_write automations_execute automations_read automations_write journeys_execute journeys_read journeys_write email_read email_send email_write web_publish web_read web_write audiences_read audiences_write list_and_subscribers_read list_and_subscribers_write data_extensions_read data_extensions_write file_locations_read file_locations_write tracking_events_read webhooks_read webhooks_write ott_chat_messaging_read ott_chat_messaging_send event_notification_callback_create event_notification_callback_read event_notification_callback_update event_notification_callback_delete event_notification_subscription_create event_notification_subscription_read event_notification_subscription_update event_notification_subscription_delete tracking_events_write",
    "soap_instance_url": "https://xxxxxxx.soap.marketingcloudapis.com/",
    "rest_instance_url": "https://xxxxxxx.rest.marketingcloudapis.com/"
}