const options = {method: 'POST'};

fetch('https://api.dolfinai.co/organisations/{id}/payment-account/session', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "clientSecret": "<string>",
  "expiresAt": "2023-11-07T05:31:56Z"
}