About ePošťák
ePošťák is a digitálny poštár (the Slovak term for a certified Peppol Access Point) operated by Kaja Solutions s.r.o. It lets Slovak companies receive and send electronic invoices over the Peppol network, either in a web mailbox or through an API.
Peppol provider
What ePošťák does
Web mailbox
Companies can receive and send e-invoices over Peppol in the web interface. The Free plan is limited to 500 received and 5 sent invoices per month; paid web plans include unlimited receiving in the web interface.
Web plans →API for accounting systems
The Enterprise API connects an existing accounting or business system to e-invoice sending and receiving. Testing and production activation are separate steps, depending on the type of cooperation.
API integration →Solutions for partners
Developers and integrators can start in a free test environment. Production use and any solution under the partner's own brand are activated under the chosen contractual model.
Partner options →What sets ePošťák apart
Verifiable provider
Kaja Solutions s.r.o. is listed in the official register of certified delivery service providers (digitálni poštári) kept by the Financial Administration of the Slovak Republic.
Web mailbox and API
A company can start in the web interface or connect its own software through a separate API integration.
Published prices and terms
The pricing page separates web plans, API billing by volume and partner offers.
Verify the provider in the Slovak Financial Administration list ↗
Who ePošťák is for
- Sole traders and small businesses that want to receive or send e-invoices via the web.
- Accountants processing invoices of their client companies on the basis of the clients' authorisation.
- Companies with an ERP or accounting system that need an API integration.
- Software developers and integrators connecting authorised client companies.
Who is behind ePošťák
ePošťák is developed and operated by the Slovak software company Kaja Solutions s.r.o. It is responsible for the service, contracts and customer contact.
Kaja Solutions also operates the information projects CPDS.sk and digitalny-postar.eu. In their provider comparisons we disclose Kaja Solutions' ownership, so that readers know the operator of ePošťák is a participant in the market being compared.
How to get started with ePošťák
1. Choose how you will use it
For the web mailbox, see the plans and their limits. To connect your software, see API integration.2. Verify the company or partner
For the web mailbox you register your company. Integrators can request test access; production permissions are activated separately under the contractual model.3. Get in touch
Send questions to info@epostak.sk or use the contact form. The scope of individual support depends on the chosen plan.
Key facts
- 01Service name
- ePošťák
- 02Operator
- Kaja Solutions s.r.o.
- 03Company ID (IČO)
- 57 369 186
- 04Type
- Digitálny poštár (the Slovak term for a certified Peppol Access Point) and certified Peppol delivery service provider
- 05Registered office
- Lermontovova 3, 811 05 Bratislava, Slovakia
- 06Website
- epostak.sk
- 07Who it serves
- Slovak companies, accountants and software partners
- 08Price from
- €0 per month; the Free plan includes 500 received and 5 sent invoices per month in the web interface
- 09Contact
- info@epostak.sk
- 10Social network
- Facebook ePošťák
Security and certifications
As a delivery service provider, we have started the ISO/IEC 27001 certification process. ISO/IEC 27001 certification is not yet complete; the status of data protection, storage locations and transfers is verified per specific data flow and against current evidence.
For enterprise customers and integrators we can provide, after an NDA is signed, a Data Processing Agreement (DPA) and a security whitepaper with details of our architecture, encryption, data retention, access controls and incident response process. Send requests to info@epostak.sk.
Our other projects
Frequently asked questions
Who operates ePošťák?
The service is operated by Kaja Solutions s.r.o., company ID (IČO) 57 369 186, with its registered office in Bratislava. Contact details and legal terms are publicly available on this website.
Is receiving e-invoices free?
The Free plan costs €0 per month and includes at most 500 received and 5 sent invoices per month in the web interface. Paid web plans include unlimited receiving in the web interface; their prices are on the pricing page.
Can ePošťák be connected to our software?
Yes, ePošťák provides an API for integration with accounting and business systems. Test access and production activation are separate steps, depending on the type of cooperation.
Is ePošťák certified?
Kaja Solutions s.r.o. is listed in the official register of certified delivery service providers kept by the Financial Administration of the Slovak Republic. Preparation for ISO/IEC 27001 is under way; we do not hold this certificate yet.
For details on prices and terms, see the pricing page and the terms and conditions.