generated: '2026-07-23' method: searched source: >- developer.santander.co.uk developer portal; OBIE Read/Write Data API Standard release train; www.santander.co.uk service-status page versioning: scheme: uri-path observed: [v3.1, v4.0] note: >- Santander UK tracks the OBIE Read/Write Data API Standard version train. The live API base paths are versioned in the URI (/open-banking/v3.1/...); the harvested Read/Write specs are OBIE v4.0.1. deprecation: policy_url: https://developer.santander.co.uk/sanuk/external/ sunset_header: false note: >- Version transitions follow the OBIE standard release schedule and Santander Developers portal notices; no machine-readable RFC 8594 Sunset/Deprecation header support is declared in the specs. sla: note: >- Availability and performance are governed by the FCA/PRA regulatory obligations and OBIE Operational Guidelines rather than a published developer SLA. status_page: https://www.santander.co.uk/personal/support/service-status deprecated_operations: []