Flow Builder - Authentication

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NOTE:

Select regional availability. This feature is currently available for customers with end users in select countries. To find out if this feature is available in your region, contact a Telesign expert.

This product is available for full-service accounts only.

After you have created your flow using the Protect Platform, your next step is to generate an access token so that you can then initialize a transactional flow. For more information on this process, see Flow Builder - Run, test, and validate a flow.

Basic usage

Authentication for the Flow Builder API requires an external authentication service that issues an access token upon successful validation of an API Key. To initiate authentication, users must send a POST request to the authentication service, providing the necessary credentials. Upon successful authentication, the service returns a bearer token, which must be included in the Authorization header of all subsequent API requests in Flow Builder to ensure secure access.

Below is a sequence diagram illustrating the authentication process and subsequent interactions with the Flow Builder API: