If the bin is private, you might also need an access key which you can add to your headers. Below is straight from the manual: https://jsonbin.io/api-reference/bins/read "X-Access-Key Required You can now access your private records with X-Access-Key header too. Refer to the FAQs for more information on X-Access-Key. Make sure you've granted Bins Read Access Permission to the Access Key you'll be using. You can create Access Keys on API Keys page."