Global: Swiss Banks Activate Open Banking as Multibanking Goes Live

Switzerland has taken a major step toward a more open financial ecosystem with the rollout of multibanking capabilities powered by SIX’s bLink open banking API. Bank customers can now link and view accounts from multiple institutions within a single banking or fintech app—marking one of the country’s most significant open banking milestones to date.

Beginning this week, customers at eight Swiss banks and two third-party providers can consolidate account data across institutions. More than 30 banks already support the necessary interfaces, paving the way for wider adoption in the coming months.

The initiative is the culmination of several years of industry-wide collaboration, aimed at enabling secure, permission-based access to banking data for non-bank providers.

Early use cases focus on enhanced financial visibility and personal finance management. Luzerner Kantonalbank (LUKB), for example, now allows customers to view accounts held at other banks directly within its e-banking platform. Its integrated financial assistant automatically categorizes transactions, supports detailed budgeting, and identifies potential savings.

On the fintech side, newly launched startup Liquid is targeting young adults with a personal finance app that aggregates all bank accounts via the bLink interface and incorporates gamified features such as streaks, challenges, and wishlists.

Christoph Müller, head of banking services and executive board member at SIX, said the launch marks a turning point for the Swiss market:
“Open banking is gaining momentum in Switzerland. With today’s launch of multibanking, a concrete use case for private customers goes live. The more institutions that participate, the greater the value for customers and the stronger the foundation for innovation.”

bLink: The Infrastructure Powering Switzerland’s Open Banking Push

The bLink platform—built and operated by SIX—uses standardized APIs to facilitate secure data exchange between banks and authorized third-party providers, with access granted only through explicit customer consent. Robust encryption and granular access controls ensure data privacy and security at all times.

SIX says development of the platform is ongoing, with continuous input from participating banks and fintech companies to ensure alignment with Switzerland’s regulatory and market landscape.