What is PSD2?
PSD2 (Payment Services Directive 2) is European regulation mandating that banks provide API access to customer accounts for authorized third parties — enabling open banking and driving payment innovation across the EU.
WHY IT MATTERS
PSD2 is the regulatory foundation of European open banking. It requires banks to provide Account Information Services (AIS) and Payment Initiation Services (PIS) through secure APIs to licensed third-party providers.
PSD2's impact: fintech apps can access bank accounts directly (with user consent), initiate payments without card networks, and build financial products on top of bank data. This has spawned a generation of fintech companies.
For crypto, PSD2 matters because: fiat on-ramps can use PIS for cheaper bank-to-crypto transfers, account data helps with financial planning, and the regulatory framework is being extended (PSD3) to cover crypto assets.