Sandbox Digital Signature Utility
This API specification defines the sandbox utility service made available by SMBC Group in order to sign HTTP messages sent from clients as well as verifying that the message is signed by the TPP, using their private key.
Signing Baskets Service
This service provides third-party providers (TPPs) access to start authorisation for a basket of payment initiation requests.
Token Service
This service supports the management of access tokens, for use by third-party providers (TPPs) to gain access to SMBC Group's other APIs.