aid: santander-uk
url: https://raw.githubusercontent.com/api-evangelist/santander-uk/refs/heads/main/apis.yml
name: Santander UK
kind: company
description: Santander UK plc is a major British retail and commercial bank and one
  of the CMA9 banks mandated to deliver UK Open Banking. It is a wholly owned,
  ring-fenced subsidiary of Banco Santander S.A. of Madrid, Spain, and was formed
  from the former Abbey National, Alliance & Leicester, and the savings business of
  Bradford & Bingley. Operating from Milton Keynes with a registered office in
  London, it serves around 14 million active personal, business, and corporate
  customers. Santander UK is authorised by the Prudential Regulation Authority and
  regulated by the Financial Conduct Authority and the PRA. Under PSD2 and the CMA
  Order it publishes a developer portal ("Santander Developers") exposing free,
  unauthenticated Open Data APIs (ATMs, branches, and product reference data) plus
  the OBIE Read/Write API family - Account & Transaction Information (AIS), Payment
  Initiation (PIS), and Confirmation of Funds (CBPII) - conformant to the Open
  Banking Implementation Entity standard and secured with FAPI-grade OAuth2/OIDC,
  mutual-TLS client authentication, and PSD2 strong customer authentication.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial Services
- Banking
- Open Banking
- PSD2
- OBIE
- CMA9
- United Kingdom
- Payments
- Account Information
- FAPI
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.19'
apis:
- aid: santander-uk:santander-uk-open-data-api
  name: Santander UK Open Data API
  description: Free, public, unauthenticated Open Data reference API publishing
    Santander UK ATMs, branches, and product information (personal & business
    current accounts, unsecured SME loans, commercial credit cards) per the OBIE
    Open Data standard.
  humanURL: https://api-portal.omni.slz.santander.co.uk/external/opendata/atms
  baseURL: https://api-portal.omni.slz.santander.co.uk/external/opendata
  tags:
  - Open Data
  - ATMs
  - Branches
  - Products
  properties:
  - type: OpenAPI
    url: openapi/obie-opendata-swagger.json
  - type: Overlay
    url: overlays/santander-uk-opendata-overlay.yaml
  - type: Documentation
    url: https://api-portal.omni.slz.santander.co.uk/external/opendata/atms
  - type: APIReference
    url: https://api-portal.omni.slz.santander.co.uk/external/opendata/branches
- aid: santander-uk:santander-uk-account-information-api
  name: Santander UK Account & Transaction Information API
  description: OBIE Read/Write Account and Transaction Information (AIS) API for
    accessing account, balance, transaction, and party data with customer consent.
    FAPI-secured (OAuth2/OIDC, mTLS, PSD2 SCA); onboarding via the Santander
    Developers portal with OBIE/eIDAS certificates.
  humanURL: https://developer.santander.co.uk/sanuk/external/product
  baseURL: https://openbanking.santander.co.uk/open-banking/v3.1/aisp
  tags:
  - Account Information
  - AIS
  - Read/Write
  properties:
  - type: OpenAPI
    url: openapi/obie-account-info-openapi.yaml
  - type: Overlay
    url: overlays/santander-uk-account-info-overlay.yaml
  - type: Documentation
    url: https://developer.santander.co.uk/sanuk/external/product
  - type: APIReference
    url: https://developer.santander.co.uk/sanuk/external/
- aid: santander-uk:santander-uk-payment-initiation-api
  name: Santander UK Payment Initiation API
  description: OBIE Read/Write Payment Initiation (PIS) API for initiating domestic,
    scheduled, standing-order, international, and file payments on behalf of
    customers. FAPI-secured (OAuth2/OIDC, mTLS, PSD2 SCA); onboarding via the
    Santander Developers portal with OBIE/eIDAS certificates.
  humanURL: https://developer.santander.co.uk/sanuk/external/product
  baseURL: https://openbanking.santander.co.uk/open-banking/v3.1/pisp
  tags:
  - Payment Initiation
  - PIS
  - Read/Write
  properties:
  - type: OpenAPI
    url: openapi/obie-payment-initiation-openapi.yaml
  - type: Overlay
    url: overlays/santander-uk-payment-initiation-overlay.yaml
  - type: Documentation
    url: https://developer.santander.co.uk/sanuk/external/product
  - type: APIReference
    url: https://developer.santander.co.uk/sanuk/external/
- aid: santander-uk:santander-uk-confirmation-of-funds-api
  name: Santander UK Confirmation of Funds API
  description: OBIE Read/Write Confirmation of Funds (CBPII) API allowing an
    authorised card-based payment instrument issuer to confirm the availability of
    funds on a customer account. FAPI-secured (OAuth2/OIDC, mTLS, PSD2 SCA);
    onboarding via the Santander Developers portal with OBIE/eIDAS certificates.
  humanURL: https://developer.santander.co.uk/sanuk/external/product
  baseURL: https://openbanking.santander.co.uk/open-banking/v3.1/cbpii
  tags:
  - Confirmation of Funds
  - CBPII
  - Read/Write
  properties:
  - type: OpenAPI
    url: openapi/obie-confirmation-funds-openapi.yaml
  - type: Overlay
    url: overlays/santander-uk-confirmation-funds-overlay.yaml
  - type: Documentation
    url: https://developer.santander.co.uk/sanuk/external/product
  - type: APIReference
    url: https://developer.santander.co.uk/sanuk/external/
common:
- type: AgenticAccess
  url: agentic-access/santander-uk-agentic-access.yml
- type: DomainSecurity
  url: security/santander-uk-domain-security.yml
- type: OAuthScopes
  url: scopes/santander-uk-scopes.yml
- type: Authentication
  url: authentication/santander-uk-authentication.yml
- type: Conventions
  url: conventions/santander-uk-conventions.yml
- type: Idempotency
  url: conventions/santander-uk-conventions.yml
- type: ErrorCatalog
  url: errors/santander-uk-problem-types.yml
- type: Conformance
  url: conformance/santander-uk-conformance.yml
- type: Lifecycle
  url: lifecycle/santander-uk-lifecycle.yml
- type: DataModel
  url: data-model/santander-uk-data-model.yml
- type: LLMsTxt
  url: llms/santander-uk-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: TermsOfService
  url: https://www.openbanking.org.uk/terms
- type: Website
  url: https://www.santander.co.uk/
- type: DeveloperPortal
  url: https://developer.santander.co.uk/sanuk/external/
- type: Documentation
  url: https://developer.santander.co.uk/sanuk/external/product
- type: Sandbox
  url: https://sandbox-developer.santander.co.uk/sanuk/external-sandbox/faq-page
- type: LinkedIn
  url: https://www.linkedin.com/company/santander-uk
- type: StatusPage
  url: https://www.santander.co.uk/personal/support/service-status
- type: About
  url: https://www.santander.co.uk/about-santander
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com