API Banking

APIs are only one element of a whole set of offerings. But to many of our customers APIs are the decisive element. They allow automation and innovation and are easy to integrate.

  Open API infrastructure enables customer centric platforms

Open APIs provide a modular extensible and standardised interface to all fidorOS functions. They support a lot of functions around banking and payment, as well as many community features and 3rd party services.  Fidor APIs are RESTful, support JSON and utilize OAuth 2. 

The whole fidorOS Technology Stack is API based and is designed to work seamlessly with existing core banking system via APIs as well. Fidor's omnichannel frontend framework fidorX is also fully API driven.

Developer friendly solutions for application management and powerful API gateways provide authentication, authorisation and scopes for API access for frontends, end-users and 3rd party service providers. 


The APIs' openness and modularity allow customers to experiment and innovate. The standards allow them to connect their systems very quickly. Openness to 3rd party solutions (e.g. FinTechs) enable platforms for partnerships and integrated value chains.

Get started with Fidor's API Banking

Want to develop a financial application which accesses bank account transactions? Fidor offers an easy-to-use RESTful JSON API.

Connect in minutes and start using it.

1. Create a Fidor account

To get started all you need is a (free) Fidor Community account. See our step by step guide on how to open and create your Fidor account to use our API sandbox.


create your account

info how to create account

2. check documentation

Sure, real programmers don’t need documentation but some of us are happy to have a helping hand or at least a reference when things go wrong.


get infos

3. Got lost anywhere?

Search through the Fidor developer community in case you’re still stuck, have found a bug, have feature requests or just want to give feedback to the developer team.


Get connected

What are APIs?

APIs are interfaces for electronic data exchange. They allow efficient and secure access to systems and services of organisations in order to connect business processes and thus create value chains across organisations.


Fidor offers APIs for:
• Banking
• Payment
• Credit
• Card Management
• User Management
• Community
• Scoring
• Integrated Services
• 3rd Party Services

I. Give your business customers easy and secure access to the banking infrastrcutre to automate their business processes via APIs

II. Integrate 3rd party services in your own offerings to enrich and deepen the relevance to retail and corporate customers via APIs


APIs are products. Developers are customers. Fidor APIs were designed with the developer in mind. That is why we adopted Internet standards set by global players like PayPal,  Facebook and Google.

Recent regulatory initiatives like PSD2 and the UK Open Banking Standard follow that route, too.

Application Manager

A user friendly developer portal supports all steps from learning with demo apps, app registration, sandbox, team management, approval process to app management, logging and debugging. End customer access is possible.

API security

API security is provided on different levels: It starts with web security through an existing firewall, load balancing and business continuity technologies.

Access security is provided by risk managing static and dynamic scopes, configurations for Oauth 2, IP restrictions, access and refresh tokens, device management (in particular for mobile devices) and 2nd factor authentication services.


Operational security is supported by approval processes, rights and role models and backoffice solutions.

Additional security is provided through technologies against fraud, money laundery and other threats provided by 3rd party solutions that are connected to fidorOS.


Truly differentiating | …customer experience that offers a comprehensive suite of financial products and services (Celent Report 2015)


  No Stack Banking

    Identity Management

    Fidor API Banking

  Value X


Exceeding standards | …in revenue growth, promoting innovative business.
(World Economic Forum)

   Finance Bay

   Fidor Connect

   Innovators Club


Customer focused |  programs and trainings on how to run a bank successfully.

     Professional Services

  Managed Services

   Product Services


   Fidor Lab