aid: leeds-building-society url: https://raw.githubusercontent.com/api-evangelist/leeds-building-society/refs/heads/main/apis.yml name: Leeds Building Society kind: company description: >- Leeds Building Society is the fifth-largest building society in the United Kingdom, a mutual owned by and run for the benefit of its members rather than shareholders. Founded in 1875 and headquartered in Leeds, West Yorkshire, it holds over GBP 31 billion in assets and serves more than 991,000 members, focusing on savings and residential mortgages (including shared-ownership and later-life lending) rather than current accounts. It is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the PRA. Because Leeds Building Society does not provide payment or current accounts, it is not one of the CMA9 mandated banks and is not an Account Servicing Payment Service Provider (ASPSP) under PSD2 / UK Open Banking; it participates in Open Banking as a data consumer (for example using Experian Boost and Account Information data to speed mortgage affordability decisions) rather than as an API provider. As of this review it publishes no public developer portal, no OBIE Open Data endpoint, and no OBIE Read/Write APIs. The OBIE standard specifications below are captured as shared-standard references, not as Leeds Building Society API contracts. accessModel: pricing: unknown onboarding: none trial: false try_now: false public: false label: No public API program confidence: high source: - review 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 - Mutual - Savings - Mortgages - Open Banking - PSD2 - OBIE - United Kingdom created: '2026-07-23' modified: '2026-07-23' specificationVersion: '0.19' apis: - aid: leeds-building-society:obie-open-data-api name: OBIE Open Data API (shared standard) description: >- The UK Open Banking (OBIE) Open Data API standard for public, unauthenticated reference data - ATM locations, branch locations, personal and business current accounts, unsecured SME loans, and commercial credit cards. This is the shared OBIE standard specification, NOT a Leeds Building Society API contract. Leeds Building Society is not a CMA9 ASPSP and does not currently publish an Open Data endpoint; no live base URL was confirmed for this bank. humanURL: https://openbankinguk.github.io/opendata-api-docs-pub/v2.4.0/ tags: - Open Data - OBIE - Reference Data properties: - type: OpenAPI url: openapi/obie-opendata-standard-swagger.json - type: Documentation url: https://openbankinguk.github.io/opendata-api-docs-pub/v2.4.0/ - type: APIReference url: https://github.com/OpenBankingUK/opendata-api-specs - aid: leeds-building-society:obie-account-transaction-information-api name: OBIE Account and Transaction Information API (AIS, shared standard) description: >- The OBIE Read/Write Account and Transaction Information (AIS) standard for retrieving account, balance, transaction, and beneficiary data with customer consent, secured with FAPI-grade OAuth2/OIDC, mutual-TLS, and PSD2 strong customer authentication. Captured here as the shared OBIE standard reference; Leeds Building Society does not offer current accounts and does not publish this API. Unverified for this bank - no base URL was confirmed. humanURL: https://github.com/OpenBankingUK/read-write-api-specs tags: - Account Information - AIS - OBIE - FAPI properties: - type: Documentation url: https://openbankinguk.github.io/read-write-api-site3/ - type: APIReference url: https://github.com/OpenBankingUK/read-write-api-specs - aid: leeds-building-society:obie-payment-initiation-api name: OBIE Payment Initiation API (PIS, shared standard) description: >- The OBIE Read/Write Payment Initiation (PIS) standard for initiating domestic, scheduled, standing-order, international, and file payments with customer consent, secured with FAPI OAuth2/OIDC, mutual-TLS, and PSD2 strong customer authentication. Captured here as the shared OBIE standard reference; Leeds Building Society is not a payment account provider and does not publish this API. Unverified for this bank - no base URL was confirmed. humanURL: https://github.com/OpenBankingUK/read-write-api-specs tags: - Payment Initiation - PIS - OBIE - FAPI properties: - type: Documentation url: https://openbankinguk.github.io/read-write-api-site3/ - type: APIReference url: https://github.com/OpenBankingUK/read-write-api-specs - aid: leeds-building-society:obie-confirmation-of-funds-api name: OBIE Confirmation of Funds API (CBPII, shared standard) description: >- The OBIE Read/Write Confirmation of Funds (CBPII) standard for confirming whether funds are available on a payment account, secured with FAPI OAuth2/OIDC, mutual-TLS, and PSD2 strong customer authentication. Captured here as the shared OBIE standard reference; Leeds Building Society does not operate payment accounts and does not publish this API. Unverified for this bank - no base URL was confirmed. humanURL: https://github.com/OpenBankingUK/read-write-api-specs tags: - Confirmation of Funds - CBPII - OBIE - FAPI properties: - type: Documentation url: https://openbankinguk.github.io/read-write-api-site3/ - type: APIReference url: https://github.com/OpenBankingUK/read-write-api-specs common: - type: DomainSecurity url: security/leeds-building-society-domain-security.yml - type: LLMsTxt url: llms/leeds-building-society-llms.txt - type: Website url: https://www.leedsbuildingsociety.co.uk/ - type: Support url: https://www.leedsbuildingsociety.co.uk/help-and-contact/ - type: Blog url: https://www.leedsbuildingsociety.co.uk/newsroom/ - type: TermsOfService url: https://www.leedsbuildingsociety.co.uk/legal-notice-and-website-terms-of-use/ - type: PrivacyPolicy url: https://www.leedsbuildingsociety.co.uk/security/use-of-personal-information/ - type: Security url: https://www.leedsbuildingsociety.co.uk/security/ - type: LinkedIn url: https://www.linkedin.com/company/leeds-building-society maintainers: - FN: Kin Lane email: kin@apievangelist.com