🇬🇧Financial Services in United Kingdom

99 financial services providers in United Kingdom, publishing 1371 APIs.

99 providers 1371 published APIs 1371 indexed documents

Financial Services in United Kingdom — 99 providers on the APIs.io network sit in both cohorts, and between them they publish 1371 indexed APIs.

61 of the 99 publish at least one machine-readable API; 38 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.

By Kin Score band: 30 thin, 22 emerging, 21 developing, 20 minimal, 5 strong, and 1 exemplar.

Leading by rating: Griffin, Smart Pension, The Bank of London, Sikoia, Barclays, first direct, and 93 more.

Country membership reads a tag, a stated headquarters or a stated nationality. A provider lands in United Kingdom when one of its own top-level tags names the country, when its own description states a headquarters that names the country or one of its cities, or when it describes itself by nationality (“a French company”; roadmap#542, #719). Region words (“Latin American”), language uses (“French-speaking”) and a city named outside a headquarters statement are not counted, so this cell is a floor, not a census.

Providers (99)

Provider	Description	APIs	Rating
Griffin	Griffin is a UK-regulated bank (Financial Conduct Authority authorised, Prudential Regulation Authority regulated) offering Banking-as-a-Service via a REST API. Fintechs and bus...	28	exemplar
Smart Pension	Smart Pension is a UK defined contribution workplace pension master trust operated by Smart Pension Limited (Smart Group), managing pensions for millions of UK savers on behalf ...	149	strong
The Bank of London	The Bank of London (TBOL) is a UK principal clearing bank and Banking-as-a-Service provider, authorised by the Bank of England's Prudential Regulation Authority and regulated by...	11	strong
Sikoia	Sikoia is a UK-based (FCA-authorised AISP), ISO 27001-certified customer-verification platform for financial services. Its REST API automates KYC/KYB and onboarding by grouping ...	19	strong
Barclays	Barclays is a British multinational bank providing retail and commercial banking, investment banking, wealth management and credit cards. Its developer surface is the Barclays A...	64	strong
first direct	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 ...	34	strong
Allica Bank	Allica Bank Limited is a UK financial-technology bank built specifically for established small and medium-sized businesses, offering business current accounts, savings, commerci...	18	developing
The Co-operative Bank	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 2...	76	developing
Algbra	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 Financi...	16	developing
Weatherbys Bank	Weatherbys Bank is a small, family-owned UK private bank, part of the Weatherbys Banking Group, trading since James Weatherby founded the family business in 1770 and incorporate...	7	developing
ClearBank	ClearBank is a UK clearing and Banking-as-a-Service bank, founded in 2015 by Nick Ogden (founder of WorldPay) and Charles McManus and granted a banking licence in December 2016 ...	15	developing
Starling Bank	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 ...	18	developing
Virgin Money UK	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 acco...	17	developing
Yorkshire Building Society	Yorkshire Building Society (YBS) is a UK mutual building society founded in 1864 and headquartered in Bradford, West Yorkshire. As a member-owned mutual rather than a shareholde...	24	developing
Triodos Bank UK	Triodos Bank UK Limited is a values-based, sustainability-focused bank headquartered in Bristol, England, and the UK arm of Triodos Bank N.V. (founded 1980, Netherlands), one of...	10	developing
Danske Bank (UK)	Danske Bank (UK) is the trading name of Northern Bank Limited, a retail and commercial bank headquartered in Belfast and the largest bank in Northern Ireland. It is a wholly own...	35	developing
C. Hoare & Co.	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 gene...	20	developing
AIB Group (UK)	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 ...	15	developing
Nationwide Building Society	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 mutu...	7	developing
Investec	Investec is an international specialist bank and wealth manager, dual-listed on the London Stock Exchange and Johannesburg Stock Exchange and operating through Investec plc (UK)...	34	developing
Monzo	Monzo is a UK-based digital challenger bank (Monzo Bank Ltd, FCA-authorised) offering current accounts, savings pots, joint accounts, business banking and lending through a mobi...	1	developing
Yapily	Yapily is a UK-headquartered Open Banking platform that exposes a single REST API across 2,000+ banks in the UK and 18+ European countries. The platform provides AISP (Account I...	16	developing
Coventry Building Society	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...	34	developing
Vanquis Banking Group	Vanquis Banking Group plc (formerly Provident Financial plc, rebranded 2023) is a UK specialist non-prime lender and savings bank headquartered in Bradford, England, listed on t...	22	developing
Cashplus Bank	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 iss...	28	developing
Hampden & Co	Hampden & Co (trading as Hampden Bank since March 2024) is an independent UK private bank headquartered at 20/21 Charlotte Square, Edinburgh, with offices in London and Manchest...	29	developing
Mettle	Mettle is a digital-only business bank account brand for UK sole traders, freelancers, and small limited companies, wholly owned by NatWest Group and originally built with Capco...	9	developing
Chase UK	Chase UK is the digital retail bank operated in the United Kingdom by J.P. Morgan Europe Limited, a wholly owned subsidiary of JPMorgan Chase & Co. that launched the Chase consu...	28	thin
Kroo	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 di...	28	thin
Halifax	Halifax is a major British high-street banking brand serving personal and business customers with current accounts, savings, mortgages, credit cards, loans, and insurance. It op...	9	thin
Bank of Ireland (UK)	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...	35	thin
TSB Bank	TSB Bank plc is a British retail and commercial bank headquartered in Edinburgh, offering current accounts, savings, mortgages, personal loans, credit cards, and insurance to pe...	12	thin
Monument Bank	Monument Bank Limited is a UK challenger bank headquartered at 33 Cavendish Square, London, purpose-built for the "mass affluent" - professionals, entrepreneurs, and savers with...	34	thin
Lloyds Banking Group	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, Halifa...	37	thin
Secure Trust Bank	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 lendi...	34	thin
Tandem Bank	Tandem Bank (Tandem Bank Limited) is a UK app-only challenger and self-styled "greener" digital bank founded in 2014 and headquartered in Blackpool, England, with offices in Car...	28	thin
Konsentus	Konsentus is a UK-headquartered specialist provider of identity verification and trust services for open banking and open finance ecosystems. Its flagship Konsentus Verify SaaS ...	3	thin
Metro Bank	Metro Bank is a UK retail and commercial bank founded in 2010 as the first new high-street bank to open in Britain in over 150 years, headquartered in London and listed on the L...	10	thin
Skipton Building Society	Skipton Building Society is a UK mutual building society founded in 1853 and headquartered in Skipton, North Yorkshire. It is the fourth-largest building society in the United K...	9	thin
Recognise Bank	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 acco...	34	thin
Santander UK	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 Ban...	34	thin
Coutts	Coutts & Co is a British private bank and wealth manager founded in 1692, headquartered in London and serving high-net-worth individuals, families, commercial and institutional ...	29	thin
Principality Building Society	Principality Building Society is the largest building society in Wales and the sixth largest in the United Kingdom, founded in 1860 and headquartered in Cardiff. It is a mutual,...	9	thin
Handelsbanken UK	Handelsbanken UK (Handelsbanken plc) is the UK relationship bank of Svenska Handelsbanken AB (publ), the Swedish banking group, and operates a decentralised network of over 200 ...	7	thin
Hnry	Hnry is a New Zealand-founded financial administration and accounting service for sole traders, contractors and freelancers, operating in New Zealand, Australia and the United K...	1	thin
UK Open Banking	UK Open Banking standard with REST APIs for account and transaction data, payment initiation, variable recurring payments, and confirmation of funds for regulated financial serv...	42	thin
GB Bank	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 rathe...	34	thin
Cynergy Bank	Cynergy Bank is an FCA- and PRA-authorised UK specialist bank (FCA reference 575105) serving the blended personal and business banking needs of business owners, property entrepr...	28	thin
Thought Machine	Thought Machine is a London-headquartered cloud-native core banking technology company founded in 2014 by Paul Taylor, with offices in New York and Singapore. It builds Vault Co...	2	thin
Paragon Bank	Paragon Bank PLC is a UK specialist lender and retail savings bank, the principal banking subsidiary of Paragon Banking Group PLC (LSE: PAG), a FTSE 250 company founded in 1985 ...	34	thin
Leeds Building Society	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...	9	thin
Bank of Scotland	Bank of Scotland is a UK high-street retail and commercial bank, founded in 1695 and headquartered in Edinburgh, and is one of the oldest banks in the United Kingdom. It is a wh...	34	thin
Shawbrook Bank	Shawbrook Bank Limited is a specialist UK savings and lending bank (trading as Shawbrook, part of Shawbrook Group plc, which listed on the London Stock Exchange in October 2025 ...	34	thin
Cuvva	Cuvva is a UK insurtech that pioneered flexible, short-term car and van insurance sold entirely through its mobile apps. Founded in 2015 as the first app to sell temporary car i...	1	thin
Financial Conduct Authority	The Financial Conduct Authority (FCA) is the United Kingdom's conduct regulator for around 42,000 financial services firms and the prudential regulator for most non-bank firms, ...	2	thin
Acin	Acin is a London-based operational and non-financial risk (NFR) data company for financial services, founded in 2018 and acquired by regulatory-intelligence firm CUBE in June 20...	1	thin
10x Banking Technology Services	10x Banking Technology Services is a London-headquartered cloud-native core banking platform vendor, founded by former Barclays CEO Antony Jenkins, whose SuperCore and "meta cor...	1	thin
Simudyne	Simudyne is a London-based enterprise simulation software company that builds AI-powered, agent-based (multi-agent) simulation technology for financial services and other indust...	1	emerging
Freetrade	Freetrade is a UK retail investment platform, founded in 2018 and headquartered in London, that offers commission-free investing in more than 8,600 stocks, ETFs, investment trus...	0	emerging
ManyPets	ManyPets (formerly Bought By Many, part of ManyGroup) is a digital-first pet insurance provider founded in 2012 by Steven Mendel and Guy Farley and headquartered in London, Unit...	0	emerging
9FIN	9fin is an AI-native debt market intelligence and data platform for modern credit teams, covering leveraged finance, private credit, distressed debt, high yield bonds, leveraged...	0	emerging
LendInvest	LendInvest is a London-based fintech property finance platform and mortgage lender, founded in 2013 after spinning out of Montello Bridging Finance, and listed on the London Sto...	0	emerging
Kantox	Kantox is a foreign-exchange (FX) risk management and Currency Management Automation software company, headquartered in London and Barcelona and part of BNP Paribas. Its flagshi...	0	emerging
LemFi	LemFi (formerly Lemonade Finance) is a London-headquartered cross-border payments and remittance fintech built for immigrant communities, operating as a regulated Electronic Mon...	0	emerging
Ylookup	Ylookup is a London-based fintech (founded 2025, EQT Ventures-backed) building an agentic workflow engine for fund administration, corporate services, tax, audit, and deal advis...	0	emerging
Globacap	Globacap is a London-based private capital markets technology company, founded in 2017, that builds workflow-automation software-as-a-service for issuance, share register manage...	0	emerging
INBOTIQA	INBOTIQA is a UK-based fintech whose flagship product, YUDOmail, is an Intelligent Business Email and shared-mailbox management platform for high-volume group inboxes at banks, ...	0	emerging
Tranched	Tranched is a London-based fintech building an embedded, on-chain securitisation platform that connects fintech lenders and loan originators directly to professional investors. ...	0	emerging
Redwood Bank	Redwood Bank is a specialist UK challenger bank for small and medium-sized businesses, headquartered in Letchworth Garden City, Hertfordshire. Launched in 2017 after receiving i...	1	emerging
Moneybox	Moneybox is a London-based digital wealth management company, operating as Digital Moneybox Limited, whose mobile app helps people in the United Kingdom save and invest — round-...	0	emerging
ANNA Money	ANNA Money (a trading name of Absolutely No Nonsense Admin Ltd, company number 10149389, Cardiff, a subsidiary of ANNA Holdings Ltd) is a UK digital business account and tax app...	0	emerging
Lendable	Lendable Ltd is a UK consumer lending fintech founded in 2014 and headquartered in London, offering unsecured personal loans directly to borrowers through a fully digital applic...	0	emerging
Prodigy Finance	Prodigy Finance is a fintech lender providing collateral-free, no-cosigner postgraduate education loans to international master's students at top business, engineering, and STEM...	0	emerging
Umony	Umony is a London-based communications compliance platform, founded in 2017 and backed by Seedcamp, that captures, records, and archives employee voice calls, SMS, WhatsApp, and...	0	emerging
Aveni	Aveni is an award‑winning FinTech and RegTech company based in Edinburgh, United Kingdom. It provides AI‑powered solutions for financial services, automating compliance, risk ma...	0	emerging
Curve	Curve is a London-based fintech, founded in 2015 by Shachar Bialick, that consolidates multiple debit and credit cards into a single smart card and mobile wallet. Its "over-the-...	0	emerging
Apis Partners	Apis Partners is a London-headquartered private equity asset manager investing in tech-enabled financial infrastructure and financial services businesses across Europe and Growt...	0	emerging
Calastone	Calastone operates the world's largest global funds network, connecting asset managers, distributors, custodians and platforms to automate and digitalize the investment funds ma...	0	emerging
Onafriq	Onafriq (formerly MFS Africa) is a pan-African digital payments network headquartered in London with operating entities across Mauritius, Ghana, Nigeria, Tanzania, Rwanda, Ugand...	9	emerging
Kennek	Kennek (Kennek Solutions Ltd) is a UK-based fintech providing all-in-one loan management software built for specialist bridge and development lenders. The platform lets lenders ...	0	minimal
Uhura Solutions	Uhura Solutions is a London-based AI platform for document-driven process automation in financial services, combining fine-tuned large language models, a low-code framework, and...	0	minimal
Atlantic Money	Atlantic Money is a London-based fintech, founded in 2020 by Robinhood alumni and backed by Index Ventures, offering international money transfers at a flat GBP 3 fee with the l...	0	minimal
Yonder	Yonder is a UK-based financial technology company offering rewards credit and debit cards — a "financial membership" that earns points on everyday spending, redeemable across 30...	0	minimal
Accord	A UK-based financial services company operating within the Allianz group, providing insurance and financial products to retail and business customers across the United Kingdom.	0	minimal
Habito	Habito is a UK-based digital mortgage broker that lets people research, compare, and apply for mortgages online across the whole of the market, pairing self-serve digital tools ...	0	minimal
Hoptroff	Hoptroff is a London-based precision timing company that delivers Traceable Time as a Service (TTaaS), providing enterprise-grade, traceable UTC time with guaranteed SLA accurac...	0	minimal
Close Brothers	Close Brothers Group plc (LSE: CBG) is a UK merchant banking group founded in 1878 and a constituent of the FTSE 250 Index, headquartered at 10 Crown Place, London EC2A 4FT. The...	0	minimal
HSBC	One of the world's largest banking and financial services organizations headquartered in London. Serves over 40 million customers globally with a strong presence in Asia, Europe...	1	minimal
Fintech Farm	Fintech Farm is a London-based fintech company that builds and operates credit-led digital banks (neobanks) in emerging markets in partnership with licensed local banks. Founded...	0	minimal
Fnality International	Fnality International is a London-headquartered financial market infrastructure company that builds and operates distributed-ledger wholesale payment systems settling in tokenis...	0	minimal
Flock	Flock is a London-based commercial motor and fleet insurtech that provides usage-based, data-driven insurance for businesses operating vehicle fleets. Using real-time telematics...	0	minimal
Eigen	Eigen Technologies is a London-based intelligent document processing (IDP) and data-extraction company that uses natural language processing, object detection and machine learni...	0	minimal
Trussle	Trussle was a UK online mortgage broker founded in 2015 and backed by Seedcamp, offering a consumer-facing mortgage comparison, application and monitoring service. It was acquir...	0	minimal
getdinghy	Dinghy (getdinghy.com) was a UK insurtech offering on-demand professional indemnity and business insurance for freelancers and contractors, and a Balderton Capital portfolio com...	0	minimal
Dealflo	Dealflo was a UK-based financial-technology company that provided an automated agreement, identity-verification, and e-signature platform used by lenders and financial instituti...	0	minimal
Fluidly	Fluidly was a London-based intelligent cashflow forecasting fintech founded in 2016 by Caroline Plumb, providing SME cash-flow prediction, scenario planning, and working-capital...	0	minimal
Standard Chartered	A British multinational banking and financial services company headquartered in London with a strong focus on Asia, Africa, and the Middle East. Provides corporate, institutiona...	0	minimal
Lanistar	Lanistar was a London-based consumer fintech founded in 2019 by Gurhan Kiziloz, known for a heavily influencer-marketed "polymorphic" Mastercard debit card with an on-card keypa...	0	minimal
Vyne	Vyne was a London-based account-to-account (A2A) open banking payments platform, founded in 2019. It offered merchants real-time pay-by-bank payments, instant refunds, no-code p...	0	minimal

Indexed API documents (1371)

Two numbers, both real: these providers publish 1371 APIs as their own documents, which the catalog indexes split one-per-resource into 1371 documents. Showing the first 200.

🇬🇧Financial Services in United Kingdom

Providers (99)

Indexed API documents (1371)

Griffin API keys API

Griffin Bank account holds API

Griffin Bank account restrictions API

Griffin Bank accounts API

Griffin Claims API

Griffin Companies House API

Griffin Confirmation of payee API

Griffin Connectivity API

Griffin Decisions API

Griffin Events API

Griffin Invitations API

Griffin Legal person history API

Griffin Legal persons API

Griffin Memberships API

Griffin Message Signatures API

Griffin Navigation API

Griffin Open banking API

Griffin Organizations API

Griffin Payees API

Griffin Payments API

Griffin Pooled account membership API

Griffin Reliance onboarding API

Griffin Roles API

Griffin Transactions API

Griffin Users API

Griffin Verifications API

Griffin Webhooks API

Griffin Workflows API

Smart Pension Account Claiming API

Smart Pension Accounts API

Smart Pension Account Subaccounts Switch Plans API

Smart Pension Additional Tax Residences API

Smart Pension Add Money Forms API

Smart Pension Adviser API

Smart Pension Adviser Companies API

Smart Pension Adviser Exports API

Smart Pension Adviser Invitations API

Smart Pension Advisers API

Smart Pension Assessments API

Smart Pension Available Funds API

Smart Pension Available Glidepath API

Smart Pension Available Withdrawal Options API

Smart Pension Bank Account Detail API

Smart Pension Batch API

Smart Pension Benefit API

Smart Pension Benefit Categories API

Smart Pension Benefit Check Results API

Smart Pension Benefit Evidence Types API

Smart Pension Benefit Form API

Smart Pension Benefit Group Auto Allocator Results API

Smart Pension Benefit Groups API

Smart Pension Benefit Money Out State API

Smart Pension Benefits API

Smart Pension Benefit Schedule API

Smart Pension Benefit Statements API

Smart Pension Cities API

Smart Pension Companies API

Smart Pension Company API

Smart Pension Company Automations API

Smart Pension Company Branding API

Smart Pension Company Branding Stocks API

Smart Pension Company Exports API

Smart Pension Company Fees API

Smart Pension Company Lookups API

Smart Pension Company Rules API

Smart Pension Company Scheme Details API

Smart Pension Constants API

Smart Pension Contribution API

Smart Pension Contributions API

Smart Pension Countries API

Smart Pension Currency API

Smart Pension Custom App Styling API

Smart Pension Customer API

Smart Pension Customer Lead API

Smart Pension Declaration Of Compliance Employee Totals API

Smart Pension Discounted Valuation API

Smart Pension Discovery API