aid: nationwide-building-society url: https://raw.githubusercontent.com/api-evangelist/nationwide-building-society/refs/heads/main/apis.yml name: Nationwide Building Society kind: company description: Nationwide Building Society is the world's largest building society and one of the UK's biggest retail financial services providers, headquartered in Swindon, England. As a mutual it is owned by and run for the benefit of its members rather than external shareholders, offering current accounts, mortgages, savings, and personal loans across a large branch and digital network. Nationwide is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the PRA. As one of the CMA9 - the nine largest current-account providers mandated by the UK Competition and Markets Authority to deliver Open Banking - Nationwide operates a public developer portal that publishes UK Open Banking APIs conformant to the Open Banking Implementation Entity (OBIE) standards - public, unauthenticated Open Data APIs (ATM and branch locators, personal and business current account product reference data) and FAPI-secured Read/Write APIs for Account and Transaction Information (AIS), Payment Initiation (PIS), Confirmation of Funds (CBPII), and Variable Recurring Payments (VRP), secured with OAuth2/OIDC, mutual-TLS client authentication, and PSD2 strong customer authentication using OBIE/eIDAS certificates. accessModel: pricing: unknown onboarding: self-serve trial: false try_now: false public: false label: Self-serve signup confidence: medium source: - authentication generated: '2026-07-23' method: derived image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg tags: - Financial Services - Banking - Building Society - Open Banking - PSD2 - OBIE - CMA9 - United Kingdom - Payments - Account Information created: '2026-07-23' modified: '2026-07-23' specificationVersion: '0.19' apis: - aid: nationwide-building-society:nationwide-atm-locator-api name: Nationwide ATM Locator API description: Public, unauthenticated OBIE Open Data API listing the location, accessibility, supported currencies, and services of Nationwide ATMs across the UK. Confirmed live (HTTP 200, application/json) at v2.2. humanURL: https://developer.nationwide.co.uk/open-banking/open-data-apis baseURL: https://openapi.nationwide.co.uk/open-banking/v2.2 tags: - Open Data - ATMs properties: - type: OpenAPI url: openapi/obie-open-data-atm-locator-openapi.json - type: Documentation url: https://developer.nationwide.co.uk/open-banking/open-data-apis - type: APIReference url: https://openbankinguk.github.io/opendata-api-docs-pub/v2.4.0/ - aid: nationwide-building-society:nationwide-branch-locator-api name: Nationwide Branch Locator API description: Public, unauthenticated OBIE Open Data API listing Nationwide branch locations, opening hours, accessibility, and services. Documented Open Data type on the developer portal (the v2.2 branches path returned HTTP 403 on unauthenticated probe from this environment). humanURL: https://developer.nationwide.co.uk/open-banking/open-data-apis baseURL: https://openapi.nationwide.co.uk/open-banking/v2.2 tags: - Open Data - Branches properties: - type: OpenAPI url: openapi/obie-open-data-branch-locator-openapi.json - type: Documentation url: https://developer.nationwide.co.uk/open-banking/open-data-apis - type: APIReference url: https://openbankinguk.github.io/opendata-api-docs-pub/v2.4.0/ - aid: nationwide-building-society:nationwide-personal-current-accounts-api name: Nationwide Personal Current Accounts API description: Public, unauthenticated OBIE Open Data API publishing reference data for Nationwide personal current account products, features, fees, and eligibility. Confirmed live (HTTP 200, application/json) at v2.2. humanURL: https://developer.nationwide.co.uk/open-banking/open-data-apis baseURL: https://openapi.nationwide.co.uk/open-banking/v2.2 tags: - Open Data - Personal Current Accounts properties: - type: OpenAPI url: openapi/obie-open-data-personal-current-accounts-openapi.json - type: Documentation url: https://developer.nationwide.co.uk/open-banking/open-data-apis - type: APIReference url: https://openbankinguk.github.io/opendata-api-docs-pub/v2.4.0/ - aid: nationwide-building-society:nationwide-account-information-api name: Nationwide Account and Transaction Information API (AIS) description: OBIE Read/Write Account and Transaction Information (AIS) API providing consented access to Nationwide account, balance, and transaction data for authorised third-party providers. FAPI-secured (OAuth2/OIDC, mutual-TLS, PSD2 SCA); requires developer-portal onboarding and OBIE/eIDAS certificates. humanURL: https://developer.nationwide.co.uk/open-banking/account-information-apis baseURL: https://api.nationwide.co.uk/open-banking/v3.1/aisp tags: - Account Information - AIS - Read/Write properties: - type: Documentation url: https://developer.nationwide.co.uk/open-banking/account-information-apis - type: APIReference url: https://developer.nationwide.co.uk/open-banking/account-information-apis - type: Authentication url: https://developer.nationwide.co.uk/open-banking - aid: nationwide-building-society:nationwide-payment-initiation-api name: Nationwide Payment Initiation API (PIS) description: OBIE Read/Write Payment Initiation (PIS) API allowing authorised third-party providers to initiate domestic and other payments from Nationwide accounts with customer consent. FAPI-secured (OAuth2/OIDC, mutual-TLS, PSD2 SCA). humanURL: https://developer.nationwide.co.uk/open-banking/payment-initiation-apis baseURL: https://api.nationwide.co.uk/open-banking/v3.1/pisp tags: - Payment Initiation - PIS - Read/Write properties: - type: Documentation url: https://developer.nationwide.co.uk/open-banking/payment-initiation-apis - type: APIReference url: https://developer.nationwide.co.uk/open-banking/payment-initiation-apis - type: Authentication url: https://developer.nationwide.co.uk/open-banking - aid: nationwide-building-society:nationwide-confirmation-of-funds-api name: Nationwide Confirmation of Funds API (CBPII) description: OBIE Read/Write Confirmation of Funds (CBPII) utility API letting a consented card-based payment instrument issuer check whether funds are available on a Nationwide account. FAPI-secured (OAuth2/OIDC, mutual-TLS, PSD2 SCA). humanURL: https://developer.nationwide.co.uk/open-banking/utility-apis baseURL: https://api.nationwide.co.uk/open-banking/v3.1/cbpii tags: - Confirmation of Funds - CBPII - Read/Write properties: - type: Documentation url: https://developer.nationwide.co.uk/open-banking/utility-apis - type: APIReference url: https://developer.nationwide.co.uk/open-banking/utility-apis - type: Authentication url: https://developer.nationwide.co.uk/open-banking - aid: nationwide-building-society:nationwide-variable-recurring-payments-api name: Nationwide Variable Recurring Payments API (VRP) description: OBIE Read/Write Variable Recurring Payments (VRP) API enabling consented sweeping and recurring payment mandates from Nationwide accounts. FAPI-secured (OAuth2/OIDC, mutual-TLS, PSD2 SCA); endpoints uplifted toward v4.0 per the developer portal roadmap. humanURL: https://developer.nationwide.co.uk/open-banking/payment-initiation-apis baseURL: https://api.nationwide.co.uk/open-banking/v3.1/pisp tags: - Variable Recurring Payments - VRP - Read/Write properties: - type: Documentation url: https://developer.nationwide.co.uk/open-banking/payment-initiation-apis - type: APIReference url: https://developer.nationwide.co.uk/open-banking/payment-initiation-apis - type: Authentication url: https://developer.nationwide.co.uk/open-banking common: - type: VulnerabilityDisclosure url: security/nationwide-building-society-vulnerability-disclosure.yml - type: DomainSecurity url: security/nationwide-building-society-domain-security.yml - type: Website url: https://www.nationwide.co.uk/ - type: DeveloperPortal url: https://developer.nationwide.co.uk/ - type: Documentation url: https://developer.nationwide.co.uk/open-banking - type: GettingStarted url: https://developer.nationwide.co.uk/open-banking/open-data-apis - type: Support url: https://developer.nationwide.co.uk/open-banking/support/faq - type: StatusPage url: https://developer.nationwide.co.uk/open-banking/support/known-issues - type: LinkedIn url: https://www.linkedin.com/company/nationwide-building-society - type: About url: https://www.nationwide.co.uk/about-us - type: Roadmap url: https://developer.nationwide.co.uk/open-banking - type: SignUp url: https://developer.nationwide.co.uk/ - type: Security url: https://www.nationwide.co.uk/help/fraud-and-security/report-security-vulnerability - type: SecurityTxt url: well-known/nationwide-building-society-security.txt - type: WellKnown url: well-known/nationwide-building-society-well-known.yml - type: Authentication url: authentication/nationwide-building-society-authentication.yml - type: OAuthScopes url: scopes/nationwide-building-society-scopes.yml - type: Conventions url: conventions/nationwide-building-society-conventions.yml - type: Idempotency url: conventions/nationwide-building-society-conventions.yml - type: Conformance url: conformance/nationwide-building-society-conformance.yml - type: ErrorCatalog url: errors/nationwide-building-society-problem-types.yml - type: Lifecycle url: lifecycle/nationwide-building-society-lifecycle.yml - type: Deprecation url: lifecycle/nationwide-building-society-lifecycle.yml - type: DataModel url: data-model/nationwide-building-society-data-model.yml - type: MCPServer url: mcp/nationwide-building-society-mcp.yml - type: ToolCrosswalk url: mcp/nationwide-building-society-tool-crosswalk.yml - type: AgentSkill url: skills/nationwide-building-society-open-data-discovery.md - type: LLMsTxt url: llms/nationwide-building-society-llms.txt - type: Overlay url: overlays/nationwide-building-society-atm-locator-overlay.yaml - type: Overlay url: overlays/nationwide-building-society-branch-locator-overlay.yaml - type: Overlay url: overlays/nationwide-building-society-personal-current-accounts-overlay.yaml maintainers: - FN: Kin Lane email: kin@apievangelist.com