Savyint Open Banking Tech Stack enables banks to build and operate an Open Banking ecosystem on a unified architecture, covering TPP management, API management and delivery, consent management, data sharing, and payment initiation.
Open Banking is becoming a key pillar of digital transformation strategies across Vietnam’s banking and financial services sector. Through open API, banks can connect with Third-Party Provider (TPP), FinTech, and digital platforms to provide services such as account information access, financial data sharing, and payment initiation.
In this context, API serves as the key bridge connecting banks with the broader ecosystem. However, API connectivity also means that banks must extend their security controls beyond internal systems to encompass multiple partners, applications, and users. Every API transaction must be authenticated, access-controlled, and protected to ensure data integrity.
At the same time, regulations governing open API deployment, cybersecurity, data protection, and related requirements have been introduced across many countries, including Singapore and Vietnam (Circular No. 64, Circular No. 50, Circular No. 77…), as well as the Philippines (AFASA and BSP Circular Nos. 1213–1215) … Compliance with these requirements has become a critical priority for banks. Banks must not only secure APIs but also protect cryptographic key, authentication information, signature, and evidence associated with data exchange and transaction processing. They must also maintain activity logs, detect anomalous access, and ensure that all operations are traceable for auditing purposes.
Therefore, one of the key challenges facing banks today is how to leverage existing infrastructure while integrating the missing capabilities into a unified, comprehensive, scalable Open Banking architecture that can strictly comply with applicable regulations.
SAVYINT’s Implementation Solution
With extensive expertise in Open Banking, Open Finance, and payment security, Savyint provides a comprehensive HSM-powered Open Banking Tech Stack that enables banks to comply with applicable regulations while strengthening security across API protection, payment processing, data sharing and consent management.
- API Security: Savyint integrates HSM with API Gateways supporting OAuth/JWS/TLS, API rate limiting, validation, and traceability to protect credentials and access privileges. All critical APIs are protected for integrity and centrally managed in a single location, reducing the risk of sensitive security information being exposed across individual applications.
- For Payment Initiation Services (PIS): Savyint integrates HSM-based digital signing for payment orders initiated via API, ensuring payment instructions remain intact and transactions are executed strictly within authorized scopes.
- For Data Sharing, Savyint combines Microservices-based Consent Management with data segmented into independent components to control data sharing according to the TPP, account, scope, and duration authorized by the customer.
- Integrates Consent Lifecycle Management (granting, revocation, and expiration), maintains consent evidence, and supports data-query validity control in accordance with applicable regulations. It also integrates an HSM-based Signing Key Management – KMS to protect cryptographic layers and the integrity of evidence.
- Integrates with Third-Party Provider Management, Digital Certificate Lifecycle Management, and Monitoring/SIEM modules, enabling banks to centrally manage partners and digital certificates while monitoring and tracing activities.
SAVYINT’s Open Banking Tech Stack is designed on a Microservices architecture, allowing banks to deploy capabilities in phases, leverage existing systems, and easily expand their Open Banking services in the future.
With Savyint Open Banking Tech Stack, banks can build a centralized Open Banking ecosystem where data, consent, and transactions are managed end-to-end on a unified platform. This enables seamless connectivity with FinTech, ecosystem expansion, and the development of new digital financial services, while supporting full compliance with applicable regulations across markets governing open API, data security, and payment transactions.
