Leeds Building Society

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