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Open Finance and API Banking: Beyond Open Banking to Full Financial Data Sharing

December 1, 2025
Samet Efe

Summary / Quick Answer

Open finance goes beyond open banking to make insurance, investment, pension and tax data accessible through standard APIs. With user consent, it offers third-party fintech companies a comprehensive financial view.

Overview

Open finance architecture: extending open banking to investments, insurance, and pensions. API standardization, consent management, and PSD3 regulatory outlook.

Quick Answer: Open finance goes beyond open banking to make insurance, investment, pension and tax data accessible through standard APIs. With user consent, it offers third-party fintech companies a comprehensive financial view.

Why This Matters

Understanding this topic is essential for businesses and professionals in the fintech and blockchain industry. The regulatory landscape, technical requirements and market dynamics continue to evolve rapidly.

Key Principles

Regulatory Framework

Different jurisdictions apply varying regulatory standards. In Turkey, the Capital Markets Board (SPK) and Banking Regulation and Supervision Agency (BDDK) oversee fintech activities. The EU’s MiCA regulation provides comprehensive rules for crypto assets, while FATF recommendations set global AML/CFT standards.

Authoritative Sources:

Technical Considerations

Modern fintech and blockchain implementations require robust technical architecture:

  • Security: End-to-end encryption, access controls, penetration testing
  • Scalability: Handling growth in users and transaction volumes
  • Compliance: KYC/AML automation, audit trails, reporting capabilities
  • Integration: REST APIs, WebSocket connections, standard protocols

Best Practices

  1. Start with requirements analysis – Clearly define business objectives before selecting technology
  2. Engage regulators early – Build relationships with supervisory authorities during development
  3. Security by design – Integrate security controls from the ground up, not as an afterthought
  4. Maintain comprehensive audit trails – All transactions and decisions must be logged
  5. Stay current with regulations – Subscribe to regulatory updates from relevant authorities

io40’s Expertise

io40 provides end-to-end technical solutions for fintech and blockchain projects. Our team combines deep technical expertise in blockchain development, payment systems and regulatory compliance consulting.

Our core capabilities:

  • Blockchain infrastructure development
  • KYC/AML system integration
  • Payment gateway and API development
  • Regulatory compliance consulting
  • Smart contract development and auditing

Contact us to discuss your project requirements, or explore our services.

Disclaimer: This content is for informational purposes only and does not constitute legal or financial advice. Consult qualified licensed professionals for specific guidance.

Frequently Asked Questions

What is open finance?

Open finance extends open banking beyond payment accounts to include investments, pensions, insurance, mortgages, and consumer credit. With customer consent, authorized third parties can access and act on the full financial picture, enabling personalized financial management.

How does open finance differ from open banking?

Open banking (mandated by PSD2) covers only payment accounts at banks. Open finance is broader, covering all financial data from all financial providers. While open banking has regulatory mandates, open finance is largely voluntary and emerging.

What is embedded finance?

Embedded finance integrates financial services directly into non-financial platforms: buy-now-pay-later at checkout, insurance at point of purchase, investments in retail apps. It uses open finance APIs to deliver financial products where customers already spend time.

Get Expert Support on This Topic

Looking to build a crypto exchange, obtain an e-money license, or set up blockchain infrastructure? Schedule a free discovery call with our team.

Contact
S

Samet Efe

Founder & CEO

A specialist at io40 in financial architectures and blockchain regulations.


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