obie

The open banking API directory

🎮 bankIO PSD2/OpenBanking playground documentation

🚀 bankIO ASPSP data

Kroo Bank Ltd is a UK app-based challenger bank, founded in 2016 and granted a full UK banking licence by the PRA/FCA in 2021 (restrictions lifted in 2022), that launched its digital-only personal current account in December 2022.

first direct is a telephone- and internet-based retail bank and a division of HSBC UK Bank plc, headquartered in Leeds, England and launched in 1989. It offers personal current accounts, savings, credit cards, loans, mortgages and insurance to UK consumers with a reputation for customer service, operating with no physical branches of its own.

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.

AIB Group (UK) p.l.c. is a UK bank incorporated in Northern Ireland (registered number NI018800, registered office 92 Ann Street, Belfast BT1 3HH), authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority.

Virgin Money UK is a full-service UK retail and business bank, operating the Virgin Money, Clydesdale Bank, Yorkshire Bank, and B brands across personal current and savings accounts, mortgages, credit cards, and business banking.

Secure Trust Bank PLC is an award-winning UK specialist bank, founded in 1952 in the West Midlands and headquartered in Solihull, providing savings accounts and specialist lending to over a million retail and business customers.

Recognise Bank Limited is a UK challenger bank focused on the SME sector and the personal and business savings markets, offering fixed-rate, notice, and easy-access savings accounts alongside secured SME lending such as bridging loans and commercial mortgages.

The Co-operative Bank plc is a UK high-street retail and commercial bank, headquartered in Manchester and long known for its customer-led ethical banking policy. Following its 2013-2017 recapitalisation it was owned by institutional bondholders, and in January 2025 it completed its acquisition by Coventry Building Society, becoming part of the…

Cashplus Bank (legal entity Advanced Payment Solutions Limited, rebranded to Zempler Bank in July 2024) is a UK challenger bank founded in 2005 that grew from a prepaid-card issuer into a fully licensed bank, receiving its UK banking licence in 2021 and regulated by the Financial Conduct Authority (FCA) and the Prudential Regulation Authority…

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…

GB Bank Limited is a UK challenger bank headquartered in Middlesbrough (2 Centre Square) with a London office (73 Brook Street, Mayfair). Wholly owned and privately backed rather than a mutual building society, it secured its full UK banking licence in 2022 and is authorised by the Prudential Regulation Authority and regulated by the Financial…

Starling Bank is a UK app-only digital challenger bank founded in 2014 by Anne Boden and headquartered in London, holding a full UK banking licence and authorised and regulated by the Prudential Regulation Authority and the Financial Conduct Authority (FSCS-protected, SWIFT SRLGGB2L).

Coventry Building Society is the United Kingdom's second-largest building society, a member-owned mutual founded in 1884 and headquartered in Coventry, England, offering savings and residential mortgages to millions of members and in January 2025 completing its acquisition of The Co-operative Bank.

Lloyds Banking Group plc is the United Kingdom's largest retail and commercial banking group, serving personal, business, and corporate customers through the Lloyds Bank, Halifax, Bank of Scotland, MBNA, and Scottish Widows brands.

Algbra is a UK values-based, sustainability-focused fintech operated by Algbra FS UK Limited (company number 12629086), an electronic money institution authorised by the Financial Conduct Authority under the Electronic Money Regulations 2011 (FRN 952360); its parent, Algbra Group Limited, is a certified B Corporation.

C. Hoare & Co. (Hoares Bank) is the United Kingdom's oldest privately-owned bank, founded in 1672 by Sir Richard Hoare and owned continuously by the Hoare family for twelve generations, operating a bespoke private banking, lending, and wealth business from Fleet Street in London and an office in Cambridge.

Bank of Ireland (UK) plc is the UK banking arm of Bank of Ireland Group plc, Ireland's oldest bank, founded in 1783 and headquartered in Dublin with a listing on Euronext Dublin and the London Stock Exchange.