Developer documentation

Berlin Group NextGenPSD2 XS2A v1.3.15

PaySaxas Oy's PSD2 access-to-account interface for authorised third-party providers. There is nothing to apply for: present a valid eIDAS QWAC and your first request registers you.

Getting startedFrom a certificate to a first account read.
Certificates & identificationQWAC requirements, roles, registration and the NCA register.
Strong customer authenticationThe redirect flow, dynamic linking and authorisation lifetimes.
ConsentsScope, the 180-day ceiling, the daily cap, revocation.
Payment initiationSEPA credit transfers, idempotency, status codes, cancellation.
Confirmation of fundsThe CBPII yes/no, and why it is only that.
Error catalogueEvery code we emit, what to do, and what not to retry.
SandboxTest certificates, seeded personas, and what is simulated.
Availability statisticsHow the quarterly figures are produced, and how to read them.
ChangelogReleases and the three-month breaking-change notice policy.
SupportHow to reach us, and what we can and cannot tell you.

Machine-readable specification

OpenAPI 3.1 (YAML)Generate a client from this.
Endpoint referenceThe same contract as a table.