Open Banking is a model for sharing financial data that allows a customer to grant third-party payment service providers access to their account information or the ability to initiate payments through dedicated interfaces (APIs), solely based on the user's consent.

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Access Piraeus Bank ICB JSC provides access to its customers’ accounts within the Open Banking framework in accordance with the requirements of Ukrainian legislation.
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Regulatory Framework Open Banking is implemented in accordance with the requirements of the National Bank of Ukraine, including: NBU Resolution No. 80 on Open Banking.
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Financial Services Open Banking enables customers to use various financial services to manage their accounts within the scope of the permissions they have granted.
Open Banking Participants

The following parties are involved in the interaction:
Payment Service User (PSU) – the account holder;
Account Servicing Payment Service Provider (ASPSP) – Piraeus Bank ICB JSC;
Third-Party Payment Service Provider (TPP) – an external service provider;
Technology Operator (UPC) – responsible for technical API connectivity and interaction.

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Benefits of Open Banking for Customers

Open Banking provides customers with greater control and convenience when using financial services.

Key Benefits

  • Unified access to finances – view accounts from multiple banks in a single application;
  • Easy service connectivity – quick access to financial and payment applications;
  • Data control – customers independently determine the scope of access granted;
  • Consent management – ability to modify or revoke access at any time;
  • Data protection – access confirmation through bank authentication using Strong Customer Authentication (SCA);
  • Faster operations – simplified payment initiation.
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How It Works for Customers

Customers may use a third-party financial service (TPP) that requests access to their accounts held with Piraeus Bank ICB JSC or initiates a payment.
 

Interaction Process
1. The customer initiates an action in the application of a third-party service provider (TPP).
2. The customer provides consent and is automatically redirected to the Winbank application for confirmation.
3. In Winbank, the customer:
- reviews the consent parameters or transaction details;
- confirms or rejects the request using Strong Customer Authentication (SCA).
4. Once confirmed:
- the consent becomes active;
- the TPP receives access or the ability to perform operations within the granted permissions.

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Consent Management in Winbank

In the Winbank mobile application, customers can:

View all granted consents (active and inactive);

Review consent details and parameters;

Manage and revoke consents at any time (individually or all at once).

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Detailed Information
Standards and Requirements

The Open Banking platform of Piraeus Bank ICB JSC complies with international standards and regulatory requirements, including:
Berlin Group NextGenPSD2 as the primary standard for API implementation and interaction with TPPs;
Requirements of the National Bank of Ukraine regarding account access, consent management, and onboarding of third-party payment service providers;
Information security requirements, ensuring data protection, access control, and secure authentication.

How to Contact the Bank

For matters related to Open Banking operations, customers may contact the Bank through:

  • The Bank's Contact Center (24/7, after successful authentication):
    For calls from abroad: +380 44 495 88 90
    Toll-free within Ukraine: 0 800 30 88 80
  • Winbank mobile application (Viber/Telegram chat support) – available until 18:00;
  • Email: info@piraeusbank.ua
  • Bank branches;
  • Feedback form available on the Bank's website;
  • Written correspondence sent to the Bank's registered address:
    11 Biloruska Street, Kyiv, 04119, Ukraine
Procedure for Unauthorized, Incorrect, or Improper Transactions

If unauthorized, incorrect, or improper payment transactions initiated through a Third-Party Payment Service Provider (TPP) within the Open Banking framework are identified, Piraeus Bank ICB JSC will investigate such transactions in accordance with its internal procedures and the requirements of Ukrainian legislation.

Where the customer is not at fault, the Bank will refund the funds related to such transactions.

For investigation purposes, the Bank may cooperate with the relevant TPP, including requesting necessary information and supporting documents. If the TPP is found responsible, the Bank reserves the right to seek reimbursement of incurred losses from the respective provider.

For Partners and Developers (TPPs)

Technical integration with the services of Piraeus Bank ICB JSC within the Open Banking framework is performed through the Bank's Open APIs implemented via the technology operator Ukrainian Processing Center (UPC).

UPC Technology Operator Provides:

  • Implementation and maintenance of dedicated APIs;
  • Routing and processing of requests between the Bank and TPPs;
  • Sandbox environment;
  • Developer portal and technical documentation;
  • Support for integration of third-party payment service providers.
TPP Onboarding Process

Connecting a Third-Party Payment Service Provider to the Open Banking API platform includes:
Registration of the TPP with the National Bank of Ukraine;
Access to the Sandbox environment;
Integration testing;
Access to the Production environment.
Access to the Production environment is granted upon successful completion of testing.
Detailed information regarding the implementation specifics of the Open Banking API platform at Piraeus Bank ICB JSC is available in the technical documentation provided by the UPC technology operator:
Regulatory APIs
https://docs.api.upc.ua/ua/api-servisi/regulyatorni-api
Piraeus Bank ICB JSC Integration Specification
https://docs.api.upc.ua/ua/api-servisi/regulyatorni-api/specifika-aspsp
The documentation includes all information required for proper integration with the Bank's dedicated interfaces, including:
Format and types of PSU identifiers;
Supported authentication approaches (including decoupled authentication);
Other technical implementation specifics of the Bank's APIs that may differ from the standard UPC specification.
When integrating, TPPs must consider both the general UPC requirements and specifications as well as the implementation specifics of Piraeus Bank ICB JSC.

Available Bank Services (APIs)

Account Information Service (AIS)
Provides access to user account information, including:
Account balances;
Transaction history;
Account details.
Payment Initiation Service (PIS)
Allows payment initiation from a user's account, including:
Customer payment authorization;
Retrieval of payment status information.
Technologies Used
The APIs are based on the following technologies:
REST API;
Data exchange format: JSON;
Security protocols: OAuth 2.0, OpenID Connect;
Secure connection: TLS 1.2 or higher.

Transparent integration conditions

Terms of Cooperation and Liability

Terms of Cooperation

Access to the Open Banking API platform is provided under equal conditions for all Third-Party Payment Service Providers.

We ensure:

  • Non-discriminatory access;
  • Transparent integration conditions;
  • Technical support.

Technical Support

For all questions related to Open Banking dedicated interfaces, the developer portal, or testing procedures, please contact the UPC support team:
ob@upc.ua

For matters requiring direct interaction with Piraeus Bank ICB JSC, TPPs may contact:

Retail@piraeusbank.ua

(Please include in the email subject line: "Open Banking – [subject of inquiry]")

These contacts may also be used for resolving disputes related to access to Open Banking interfaces.
Maintenance Windows and Service Availability
Information regarding planned maintenance activities that may affect the availability of Open Banking services is published on the Bank's official website in advance.
Liability

The Bank provides access to customer's accounts within the Open Banking framework and is responsible for organizing such access in accordance with the requirements of Ukrainian legislation.