What’s Base64 encoding, and how is it used in Rapyd API methods?

Base64 is an encoding scheme that converts binary data to a sequence of characters. It is usually used to convert an image to a unique sequence of characters. For example, this image has been converted to a Base64 sequence of characters:


This page includes the Base64 sequence of characters for this image.
Rapyd supports Base64 encoding in API methods that require attaching documents. For example, the Verify Identity method includes a field for adding the front side of the customer’s ID as a Base-64 encoded image.


Base64 is also used in calculating the signature for API requests and for webhooks.

For more about webhooks, see Webhook Signatures.

For more about API requests, see Request Signatures