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Temporary technical issues with initiating foreign transfers | November 13th, 2025
We kindly inform you, that due to maintenance work planned by the Bank that will take place on the 13th of November 2025 between 7:00 AM and 6:00 PM, there may be temporary technical issues with initiating foreign transfers under our API production environment.
Planned service downtime due to time change | October 25-26, 2025
We kindly inform you that due to the scheduled switch from daylight saving time to standard time, a temporary unavailability of services will occur. The downtime will begin on Saturday, October 25th, 2025 at 11:00 PM and will last until Sunday, October 26th, 2025 at 6:00 AM. During this time, access to the production environment of our API services may be limited or unavailable. We apologize for any inconvenience and appreciate your understanding.
Previous
Operational merger of T-Mobile Banking Services and Alior Bank
T-Mobile Poland and Alior Bank have decided to end their cooperation under the brand of T-Mobile Banking Services. Therefore as of November, 29th 2020 T-Mobile Banking Services customers will use Alior Online internet banking and Alior Mobile application.
What does this mean for TPP?
The operational merger of T-Mobile Banking Services and the Bank means that as of November, 29th 2020:
- both the brand and logo of T-Mobile Banking Services will not be present in the market - existing T-Mobile Banking Services customers after the operational merger with Alior Bank will use Alior Bank's online banking and mobile application;
- the consent granted to T-Mobile Banking Services will cease to apply after the operational merger of T-Mobile Banking Services and Alior Bank. In order to provide the services defined within PSD2, a new PSU consent will be required and a new token will be required from TPP;
- account numbers and transaction ids will remain unchanged.
This change is connected with carrying out the necessary IT works, therefore the planned unavailability of API will take place on 29th November, 2020. We will inform you about its details in a separate correspondence and will publish the information in the News section of the Developer Portal.
In case of any questions, please do not hesitate to contact us at developer@alior.pl
Kind regards,
Open Banking Team, Alior Bank S.A.
Alior Bank Developer Satisfaction Survey
We invite you to participate in a survey about the Alior Bank developer portal. (Please click here: Alior Bank Developer Satisfaction Survey).
We would like to hear the voice of our community & improve our portal with accordance to your opinion.
The answers are completely anonymous and will help us to identify directions for further development and improvements.
We will be grateful for your feedback!
Unavailability of Open API | October 25th, 2020
We kindly inform you that due to the implementation
work planned by the Bank some of the services provided under the API
productionenvironment will be unavailable on October 25th from 0.30 am until 8.00 am.
Unavailability of Open API | October 22nd/23rd, 2020
We kindly inform you that due to the implementation work planned by the Bank some of the services provided under the API production
environment will be unavailable on the night between 22 and 23 of October from 11.00 pm until 0.30 am.
Planned changes in Open API Sandbox environment // 21st October 2020
We are happy to announce that on 21st October we implement a series of improvements and functionalities to our Open API Sandbox environment.
Hence, we would like to inform that due to the implementation of the changes, there may be some interruptions in the functionality of our Sandbox on October 21, 2020 from 10:00 am to 11:00 am.
You can find more details about the changes in our documentation in PIS section 2_1_1.2 & AIS 2_1_1.1.
Changelog - what’s new?
Deployment date: October 21, 2020
Change No. 016
Change description: Enabling the execution of requests with ipv6 address.
Service(s) & Product impacted: AIS, PIS, CAF, AS
Impact on TPP and Developers: Yes
Change No. 017
Change description: Enabling the tradeDate field for the getHolds service.
Service(s) & Product impacted: getHolds -AIS
Impact on TPP and Developers: Yes
Change No. 018
Change description: Enabling all AIS services to be requested any number of times in 4 slots for 5 minutes per day from the first call. After the 5-minute slot is completed, each subsequent request automatically opens another 5-minute slot until the 4 slots limit is reached.
Service(s) & Product impacted: all services -AIS
Impact on TPP and Developers: Yes
Change No. 019
Change description: Enabling transfers in the amount defined in the PolishApi Standard for bundle and tax services.
Service(s) & Product impacted: tax, bundle - PIS
Impact on TPP and Developers: Yes
Change No. 020
Change description: Adding mcc field for card transactions in the getTransactionDetail service.
Service(s) & Product impacted: getTransactionDetail - AIS
Impact on TPP and Developers: Yes
Change No. 021
Change description: Disabling an empty object for nontax transactions in the getTransactionsDone service.
Service(s) & Product impacted: getTransactionsDone - AIS
Impact on TPP and Developers: Yes
Change No. 022
Change description: Adjusting the output object to the PolishAPI Standard for the cancelPayment service. One element list will be returned.
Service(s) & Product impacted: cancelPayment - PIS
Impact on TPP and Developers: Yes
If you have any questions don’t hesitate to contact us via developer@alior.pl
Planned changes in Open API Production environment // 15th October 2020
We are happy to announce that on 15th October we implement a series of improvements and functionalities to our Open API production environment.
Hence, we would like to inform that due to the implementation of the changes, there may be some interruptions in the functionality of our production API on October 15, 2020 from 4.00 am to 6.00 am.
You can find more details about the changes in our documentation in PIS section 2_1_1.2 & AIS 2_1_1.1.
Additionally we kindly inform you, that according to the previous communication, currently supported API versions are API PIS 2_1_1.2 and API AS 2_1_1.2.
Changelog - what’s new?
Deployment date: October 15, 2020
Change No. 019
Change description: Enabling the execution of requests with ipv6 address.
Service(s) & Product impacted: AIS, PIS, CAF, AS
Impact on TPP: Yes
Change No. 020
Change description: Enabling the tradeDate field for the getHolds service.
Service(s) & Product impacted: getHolds -AIS
Impact on TPP: Yes
Change No. 021
Change description: Enabling all AIS services to be requested any number of times in 4 slots for 5 minutes per day from the first call. After the 5-minute slot is completed, each subsequent request automatically opens another 5-minute slot until the 4 slots limit is reached.
Service(s) & Product impacted: all services -AIS
Impact on TPP: Yes
Change No. 022
Change description: Enabling transfers in the amount defined in the PolishApi Standard for bundle and tax services.
Service(s) & Product impacted: tax, bundle - PIS
Impact on TPP: Yes
Change No. 023
Change description: Adding mcc field for card transactions in the getTransactionDetail service.
Service(s) & Product impacted: getTransactionDetail - AIS
Impact on TPP: Yes
Change No. 024
Change description: Disabling an empty object for non tax transactions in the getTransactionsDone service.
Service(s) & Product impacted: getTransactionsDone - AIS
Impact on TPP: Yes
Change No. 025
Change description: Adjusting the output object to the PolishAPI Standard for the cancelPayment service. One element list will be returned.
Service(s) & Product impacted: cancelPayment - PIS
Impact on TPP: Yes
Change No. 026
Change description: Enabling split payment functionality for a domestic service in the KW channel.
Service(s) & Product impacted: domestic - PIS
Impact on TPP: Yes
Change No. 027
Change description: Enabling mapping in the detailedStatus field for business customers.
Service(s) & Product impacted: PIS
Impact on TPP: Yes
Change No. 028
Change description: Modification of description field for card transactions in getTransactionsDone and getTransactionDetails services.
Service(s) & Product impacted: getTransactionsDone, getTransactionDetails - AIS
Impact on TPP: Yes
Change No. 029
Change description: Enabling the cancelRecurringPayment service for corporate clients.
Service(s) & Product impacted: cancelRecurringPayment - PIS
Impact on TPP: Yes
If you have any questions don’t hesitate to contact us via developer@alior.pl
Unavailability of Open API | October 9/10th, 2020
We kindly inform you that due to the implementation workplanned by the Bank some of the services provided under the API production environment will be unavailable on the night between 9 and 10 of October from 11.00 pm until 6.00 am.
Unavailability of Open API | September 29/30th, 2020
We kindly inform you that due to the implementation work
planned by the Bank some of the services provided under the API
production environment will be unavailable on the night between 29 and 30 of September from 10.00 pm until 5.00 am.
Unavailability of Open API | September 4/5th, 2020
We kindly inform you that due to the implementation work planned by the Bank some of the services provided under the API production environment will be unavailable on the night between 4 and 5 of September from 11.30 pm until 10.00 am
Unavailability of API on August 19th, 2020
We kindly inform you that due to maintenance activities planned by the Bank, some of the services provided under the API will be
unavailable on August 19th, 2020 from 5.00 am to 5.30 am.
If you have any questions don’t hesitate to ask at: developer@alior.pl