generated: '2026-06-20' method: derived source: openapi/ (version + base path) + OBIE Read/Write standard lifecycle versioning: scheme: uri-path current: v4.0 spec_version: 4.0.1 detail: >- Chase UK tracks the OBIE Read/Write API Standard release train. The major version is pinned in the /open-banking/v4.0/{aisp|pisp|cbpii} base path; OBIE publishes versioned standards and migration guidance centrally. deprecation: policy: OBIE standard release-train deprecation (banks migrate between OBIE major versions on OBIE's published timelines) sunset_header: false in_spec_deprecations: - OBErrorResponse1.Code (marked Deprecated in v4.0.1) - OBErrorResponse1.Message (marked Deprecated in v4.0.1) sla: detail: >- Availability and performance are governed by the FCA MI reporting regime for dedicated Open Banking interfaces and the bilateral TPP onboarding agreement; no separate public developer SLA page is published. status_page: found: false detail: No dedicated public developer status page located for the Chase UK OBIE sandbox interface. deprecated_operations: []