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How to Choose the Best Open Banking API for Digital Bank?

23 Feb 2021 updated
11 min

Table of content

10 years back, banks were the single purpose of contact for clients. In the event that you needed to store reserves, move between accounts, or do pretty much something besides check your equilibrium, you typically needed to go to your bank yourself.

From that point forward, banks have developed their distance points while expanding their advanced administrations product offering. There are currently not many things, including opening records and Visa information exchange, that expect you to actually step foot inside a branch. Now one can do pretty much everything from a cell phone or a PC.

However, hardly any monetary specialist organizations, especially more modest banks, were prepared to grasp this change so rapidly while at the same time conveying fantastic client encounters. Making compelling applications requires interest into a client experience group, R&D, advancement, and more to make practical, stable and easy to understand systems. The entirety of this takes a gigantic spending that normally just the biggest players can manage.

What is Open Banking?

Open banking is a framework under which banks open up their application programming interfaces (APIs), permitting outside users to get to monetary data expected to grow new applications and benefits and giving record holders more noteworthy monetary straightforwardness alternatives. What’s more, this framework is a positive change for bettering the global exchange in the banking processes.

As long as the technology allows outsiders to grow better individual budget the executives (PFM) applications and financial software, the tension is created for users to raise the contributions they have. The financial administrations available develop rivalry in the financial business – compelling occupants to either upgrade the available monetary administrations or unite with the fintech sector. 

What is a Banking API?

An API, also called an “application programming interface,” is a combination of devices and digital conventions used to construct programming and applications. As far as banking, APIs permit programming specialists to make applications that help monetary foundations trade information with outsider monetary innovation associations.

APIs in the financial business enable monetary organizations to interface with organizations and buyers, move data at a more advantageous movement, and extend the number and broadness of administrations they can offer. Given the achievement of APIs over the globe, it could have a wide assortment of suggestions on the eventual fate of the financial market.

Benefits of Open Banking

Open banking can possibly build income streams while growing client go after monetary foundations – an open door occupants shouldn’t overlook. It can likewise make income sharing biological systems, where officeholders give clients admittance to outsider created administrations while benefitting from a membership or reference premise.

Insider Intelligence expands the pay potential in the UK made through Open Banking-engaged close to nothing and medium-sized associations (SMBs) and retail customer suggestions to reach $2 billion by 2024 – an over 20% build yearly development rate (CAGR).

Also, open financial licenses banks to advocate their establishment by moving into the BaaS space and giving focus organizations to fintechs and different outcasts.

Open Banking – The Case of Sweden

Being a stable EU member, Sweden supports a vast number of universal APIs available within open banking, namely Account Financials PSD2 and Confirmation of Funds PSD2.

Account Financials PSD2

NOTE: With the United Kingdom’s exit from the European Union, the European Banking Authority requires all accomplice eIDAS authentications to terminate on December 31, 2020. American Express will acknowledge other legitimate, marked declarations until June 2021. If you don’t mind get in touch with us if the lapse impacts you.

Account Financials Payment Service Directive 2 (PSD2) is a set-up of APIs that gives Customer-approved, account-explicit information for all American Express® restrictive Card items including Personal, Small Business and Corporate Cards for parties affirmed under the PSD2 enactment.

Accessible for: Account Information Service Providers (AISPs) in Europe and the United Kingdom (UK) who have been approved by their public capable specialists, and AISPs who have applied for such authorization.

Jurisdictions: American Express Customers in Finland, France, Sweden and the United Kingdom

Confirmation of Funds PSD2

NOTE: With the United Kingdom’s exit from the European Union, the European Banking Authority requires all accomplice eIDAS declarations to terminate on December 31, 2020. American Express will acknowledge other legitimate, marked declarations until June 2021. Kindly reach us if the termination impacts you.

Affirmation of Funds PSD2 gives Customer-approved, affirmation of accessible assets for all American Express® exclusive Card items including Personal, Small Business and Corporate Cards for parties guaranteed under the Payment Service Directive 2 enactment.

Accessible for: Card Based Payment Instrument Issuers (CBPIIs) in Europe and the United Kingdom (UK) who have been approved by their public capable specialists and CBPIIs who have applied for such authorization.

Jurisdictions: American Express Customers in Finland, France, Sweden and the United Kingdom


As for side API projects, their abundance makes every Sweden bank prepared for a quite a vast range of services.



Kontomatik supports all critical banks in ten countries on three territories and is set up to make APIs for various countries upon request. Kontomatik maintains the getting to of individual data of the record owners, current and saving records and trade history from those records.

Kontomatik offers an API of read-only sort for money related associations, enabling them to import singular data, account changes and full clarifications from any maintained bank to their structure. To do that, Kontomatik uses end-customer bank capabilities (a bank login and mystery state). The game plan ensures top notch security as Kontomatik laborers store practically no data. Bank passwords are never taken care of and financial data is wiped out ASAP (money related data is taken out from Kontomatik laborers in a 24-hour moving window. Programming interface clients, regardless, can drive data ejection at whatever point). Kontomatik API requires two-factor approval subject to an API key and IP whitelist.


Xignite APIs are used by in excess of 40 new organizations with the client base including associations, for instance, Betterment, Wealthfront, Personal Capital, Yodlee, Oracle, SAS, Sungard, Charles Schwab, Navy Federal Credit Union, TD Ameritrade, Brinks, GE and Starbucks.

A particular API of the association called the ‘FactSet Fundamentals’ is one of the essential REST-based APIs to give exact and trusted in chronicled financials, basics, pay and more across more than 170 overall exchanges. FactSet Fundamentals participates more than 40 other APIs for money related organizations in Xignite’s API library. APIs from Xignite offer back-end data joining, filling a huge load of financial help experiences.


Plaid Connect licenses designers to plunge into the story by social event esteem based data from credit, charge, checking, save assets and more records in an unblemished, usable game plan. It shrewdly facilitates the merchant name, arrangement, region and address of each purchase.

Plaid gives designs the contraptions to fuse with bank system and the ability to get to and endorse customer monetary equilibriums. Plaid offers two fundamental things through its APIs that license customers and planners to handily work together with financial establishments: Plaid ACH Auth and Plaid Connect.

Fidor Bank

fidor bank

Fidor gets a full monetary grant together with its own development and open bank APIs. The fidorOS has been planned to work with a current place monetary structure and is expandable past standard monetary organizations. The monetary stage is a middleware that offers assistance for social trading and advancing, virtual money related principles and emergency credits without being joined to any legacy code.

The Germany-based bank offers a standardized arrangement of RESTful APIs and the heads structures dealt with OAuth for affirmation. With Fidor, each customer can get a specific customer ID and related record. Passing on the Fidor API, requesting can be made for pariah portions or moves. Single trades, similarly as bunch moves or direct charge withdrawals, can be made using a singular API-driven philosophy. Electronic sales can be made to recuperate customer information, for instance, ID and customer email. The API engages originators to will general record the board features.


Figo Connect is an absolutely RESTful API and plans to follow whatever number acknowledged strategies as would be judicious. The API and its online instruments are only available by methods for HTTPS. Moreover, its SDKs use presentation adhering to support the underwriting of the API laborer to loosen up past the SSL trust chain.

Figo Connect API licenses to easily get to monetary equilibriums including trade history and submitting portions. Records are the central zone object of this API and the rule anchor point for countless various resources. This API doesn’t simply think about customary records as records yet moreover elective monetary organizations, for instance Visas or PayPal. The API doesn’t perceive these two all around.



Yodlee Envesment

Other than the more than two, the association has dispatched an Enterprise API, only created and co-set apart for individual financial foundations. Yodlee’s API also allows geolocation information to be added to money related data. Yodlee engineers dispatched another plan of loosening up APIs called “FastLink” that assists a customer with associating various records and cards in a solitary spot with a basic streamlined component at the back-end.

Yodlee Interactive, a division of Yodlee, builds APIs to help customers with offering innovative FinApps available to be purchased to the public even more quickly using rich customer contingent data. It fundamentally offers the going with two APIs: Instant Account Verification API and Aggregation API, which enables specialists to pick up permission to randomized and securitized bank data through the ability to add up to records, whether or not it’s an endeavor account, a monetary equilibrium, a charge card account, a prizes account, an insurance record or some other record.


Pich Link API licenses gathering customer instructed data from accounts over various financial foundations. The Pich API outfits business and specialists with reliable, clean, and improved trade data in a machine-understandable course of action. Pich keeps up a lethargic affiliation that gets dynamic at whatever point the customer gets to the application, outfitting them with the most excellent information related with the record.

Pich is banking and financial data provider. The association assembles and adds up to this data for associations and planners so they can use it in their organizations. With the help of Pich’s API, the customer can quickly join to the monetary system and bit of leeway from the strong data of these financial associations.

Final Thoughts

Money related organizations firms are arousing to the assessment of Open Banking exercises and the vital capacity of APIs. Traditional banks appreciate that to all the more probable battle in the business, they should develop their mechanized capacities to do whatever it takes not to be dis-intermediated by new hopefuls with predominant commitments and organizations.

Around the world, the business is starting to see that Open Banking is reconsidering the money related scene in different habits, expressly by helping financial organizations firms overhaul organization commitments, improve as a rule customer responsibility, and addition pay from new channels.

Through building this effective Open Banking API framework, banks can begin changing themselves from a structure that offers particular organizations to a phase that offers full capacities. By continuing to consider themselves to be establishments and excusing Open Banking API strategies, banks are essentially engaging FinTech new organizations and untouchable architects to create imaginative organizations and partner with customers – therefore subverting their bit of the general business and disturbing the traditional customer bank relationship.

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