Which banks offer open banking APIs in the UK?
Summary
The nine CMA-mandated banks and many other UK banks and building societies offer open banking APIs under the UK Open Banking Standard. The Open Banking Tracker lists them in the provider directory.
Direct answer
In the UK, the nine banks and building societies covered by the CMA order (e.g. Barclays, HSBC, Lloyds, NatWest, Santander UK, and others) are required to offer open banking APIs. Many additional UK banks and building societies have joined voluntarily, so a large share of UK current accounts are accessible via the UK Open Banking Standard.
Access is typically through the standardised APIs defined by the Open Banking Implementation Entity. Third parties connect either directly to each bank’s API or via an API aggregator (e.g. TrueLayer, Yapily, Tink) that connects to many UK banks through one integration. The Open Banking Tracker provider directory lists UK banks and their API and aggregator coverage.
Use the Open Banking Tracker to browse providers by country (United Kingdom) and see which banks support open banking, which aggregators connect to them, and links to developer portals where available.