Open Banking is the Future, but Will All Banks Adopt?

Open banking is a transformative topic that is reshaping the financial industry. As banks weigh the risks and opportunities, fintech companies like Moss are already driving innovation, leaving traditional institutions with a critical choice—adapt or fall behind.

Open banking is a financial innovation that enables secure sharing of banking data with third-party providers through application programming interfaces (APIs). Its origins trace back to the European Union’s Revised Payment Services Directive (PSD2) in 2015, which mandated banks to grant access to customer data—if authorised—fostering competition and innovation in financial services. The UK spearheaded this movement in 2018 with its Open Banking Initiative, setting global benchmarks for data-sharing frameworks. Open banking is built on the principles of consumer consent, data security, and financial transparency, empowering users with more control over their finances while driving the rise of fintech solutions such as budgeting apps, alternative lending platforms, and personalised financial services.

The Adoption of Open Banking by Banks

As regulatory frameworks like PSD2 and the UK’s Open Banking Initiative came into effect, banks faced the challenge of adopting open banking principles. Initially, many traditional financial institutions were hesitant, as open banking represented a major shift from their long-standing model of exclusive control over customer financial data. However, as fintech companies and challenger banks rapidly embraced open banking, traditional banks began integrating APIs to remain competitive and comply with regulations.

Some banks viewed open banking as an opportunity to modernize their services, offering new customer-centric solutions such as real-time payment processing, enhanced financial insights, and improved credit scoring mechanisms. Others, however, saw it as a threat to their established business models, as it encouraged customers to explore alternative financial service providers.

Resistance to Open Banking Integration

Despite regulatory mandates, some banks were resistant to open banking due to concerns over security, data privacy, and the potential loss of direct customer relationships. Historically, banks operated in a closed ecosystem where they controlled how financial data was accessed and utilized. The introduction of open APIs meant that third-party providers could offer services using customer data, raising fears that banks would lose their intermediary role in financial transactions.

Moreover, some banks were concerned about the technical and operational complexities of implementing open banking. Developing secure and standardized APIs required significant investment in IT infrastructure, compliance with stringent security protocols, and extensive testing to prevent fraud and data breaches. Many institutions struggled with legacy systems that were not designed for seamless API integration, making the transition to open banking both costly and time-consuming.

Challenges in Building Open Banking APIs

Creating open banking APIs posed multiple challenges for banks, including:

1. Data Security & Compliance – Ensuring that customer data is securely transmitted while complying with regulations such as GDPR and PSD2 was a top priority. Banks had to implement robust encryption and authentication measures to mitigate the risks of data breaches.
2. Standardization Issues – Different countries and regions established varied standards for open banking APIs, requiring banks to tailor their implementations accordingly. The lack of global uniformity made interoperability a challenge.
3. Legacy System Integration – Many traditional banks operated on outdated core banking systems that were not designed for API connectivity, requiring substantial technological upgrades.
4. Third-Party Risk Management – Banks needed to establish stringent vetting processes to assess the security practices of third-party providers accessing customer data.

The Benefits of Open Banking for Banks and Customers

Despite initial resistance and implementation challenges, open banking has proven beneficial for both financial institutions and consumers. For customers, open banking enables better financial management, increased transparency, and access to a broader range of financial services, from automated savings tools to personalized loan offers. It fosters competition, driving down fees and improving service quality.

For banks, open banking presents opportunities to innovate and create new revenue streams. By partnering with fintech companies, banks can offer enhanced digital experiences, attract new customer segments, and leverage data insights to provide more personalized financial products. Furthermore, API-driven banking allows for greater efficiency in payments and lending, reducing operational costs and improving customer satisfaction.

Ultimately, open banking is transforming the financial landscape, making banking more accessible, competitive, and customer-centric. As banks continue to refine their API strategies, the industry is set to evolve further, paving the way for a more interconnected and efficient financial ecosystem.

Fintech Leading the Way

Unlike banks, fintech companies embrace open banking APIs to create seamless financial solutions. For instance, Moss offers a spend management platform that is powered by open banking. Engineering director and co-founder Nikolay Mironenko led its API integrations, ensuring PSD2 and AML compliance. The platform supports real-time transaction processing, a key feature of open banking.

Nikolay Mironenko remarked: “At Moss, we extensively leverage open banking to enable new products - Moss Credit card for businesses is a great example of it. It plays a crucial role in powering KYC, Underwriting, and Credit Scoring. With real-time monitoring of transaction data - we can more accurately access the risk profile of the customer and offer best credit card terms on the market. Just 5 years ago it would be tenfold harder to build such a product without Open Banking integration. The cost of running and maintaining it would be on another level."

The Future of Open Banking

The banking industry is at a turning point. Due to regulations and growing consumer demand, banks feel pressured to adopt open banking. Indeed, to stay competitive, banks must either build their own API solutions or collaborate with fintech. 

In the end, banks that see open banking as an opportunity rather than a risk will thrive in the years ahead.

Conclusion

Whether to adapt or resist is no longer a debatable topic. Banks can either choose to adapt to open banking or risk irrelevance. To thrive in the digital era, banks must collaborate with the fintech sector and adjust their business models to the growing customer demand for digitalization. The financial future is open—will banks lead or lag behind?