◆ Pricing
Choose how you want to use Peppol.
For one company, an ERP integration or a service under your own brand. Each model has its own price and a clearly separated scope.
Peppol Access Point for Slovakia and the EU
Web interface plans
For sole traders and small businesses that don't need ERP integration. Monthly subscriptions with a fixed number of sends.
For sole traders and small businesses who mainly receive invoices.
Receiving up to 500/mo + 5 sends
5 sends per month. No overage.
- ·E-invoice inbox in the web interface
- ·Free program monthly limit: 500 received + 5 sent invoices per month
- ·5 sends / month
- ·90-day archive
- ·Per-invoice export
- ·Self-service README/FAQ
- ·Invite colleagues and accountant into the company
For sole traders and microbusinesses sending up to 50 invoices per month.
50 sends per month
Over the limit €0.25/doc. No need to switch plans — automatic.
- Everything from Free, plus:
- ·Unlimited receiving through the web interface
- ·50 sends per month
- ·Archive for the duration of subscription + 30 days
- ·Bulk export
- ·Invoicing via Telegram bot
- ·Email support
- ·Invite colleagues and accountant into the company
- ·Phone support on business days during standard business hours
- ·99.5% platform availability target
For small and medium businesses sending up to 200 invoices per month.
200 sends per month
Over the limit €0.20/doc. 200 isn't a hard cap — sending 250? You'll pay 50 × €0.20.
- Everything from Standard, plus:
- ·Unlimited receiving through the web interface
- ·200 sends per month
- ·Multiple own companies under one login
- ·Priority email support
- ·Lower over-limit price (€0.20/doc)
- ·Phone support on business days during standard business hours
- ·99.5% platform availability target
Kaja Solutions is currently not VAT registered; the listed amounts are final. Web interface and API billing are separate: web interface subscriptions apply from 1 Jan 2027, while Enterprise API has been billed from June 1, 2026 based on documents actually sent and received.
The Free program has a monthly limit of 500 received and 5 sent documents. After the limit is exceeded, new documents are not shown in the interface and sending is suspended; Peppol receipt continues in the background and documents become available after switching to a paid program.
Enterprise API
For integrators, ERP systems and developers. Volume-based API billing has applied since June 1, 2026 based on documents actually sent and received. Web plan rules do not apply to Enterprise API, Connector/API or white-label use.
The commercial mode is independent of the API surface. With firm-scoped sk_live_* credentials, the end company signs and pays; the credential works with SAPI and supported firm-scoped Connector / Enterprise operations. With managed sk_int_* credentials, the integrator signs and pays one consolidated bill for authorized companies.
Production API has an initial 12-month commitment and fixed-price guarantee from the Activation Date. During it, actual API documents and ordered services are billed without a monthly minimum unless the Order expressly sets one. Notice delivered during the initial term takes effect on its last day; a 60-day notice period applies afterwards.
GET /sapi/v1/document/receive
What Enterprise API includes
The public per-document price includes standard API operations and the following capabilities. We do not add hidden mandatory fees.
- Pay per use: you are charged only for documents actually sent and received.
- €0 monthly API fee, €0 setup fee and €0 onboarding fee.
- Free sandbox and test environment.
- Technical archive during the active contract plus a contractually specified export window after termination; it does not replace the statutory accounting archive.
- Up to 20 invoice attachments, maximum 10 MB per file and 15 MB in total.
- Email and phone support in Slovak and English on business days during standard business hours.
- SDKs in 6 languages, OpenAPI 3.1, webhooks, OCR and idempotency.
- Retry mechanisms, monitoring and a 99.5% platform availability target.
Transparent pricing with no hidden fees
ePostak publishes the prices of its standard services. Enterprise API is billed monthly in arrears based only on measured usage. If you need custom development or a custom connector, the scope and price are agreed in advance.
The optional white-label layer for Enterprise API starts with the Founder programme at a final €99 per month. The €99 monthly fee is guaranteed for 12 months under the Founder programme terms. If the programme proves popular, we will continue developing the white-label offering.
Estimate your monthly cost
Enter the expected monthly volume of sent and received documents through Enterprise API or white-label. The indicative price is final under the provider's current non-VAT-registered status. The calculator does not apply to manual receiving through the web interface in the SMB programs Free, Standard and Business.
Kaja Solutions is currently not VAT registered; the listed amounts are final.
White-label digital postman under your brand
Your brand for clients. Our certified infrastructure in the background.
Jediný digitálny poštár na Slovensku s verejným white-label cenníkom, sandboxom zdarma, 0 € setup fee, 0 € onboarding fee a API pay-per-use.
Founder’s White Label costs a final €99 per month during the initial 12-month commitment with a fixed-price guarantee from activation, for the first 100 partner slots. Up to 500 active companies per partner are included; each company above 500 is billed at exactly +€0.50 / active company / month. From month 13, White-Label Bronze costs €199 per month up to 500 active companies unless Kaja auditably extends the €99 price beforehand.
Your brand for the client, our backend for delivery
The partner appears under its own brand on ePošťák infrastructure. The client uses the service under the partner brand, while ePošťák provides the technical infrastructure, delivery, monitoring and Slovak support.
Founder’s White Label has a 12-month commitment and fixed-price guarantee from activation; the base monthly fee remains due through the term on ordinary termination. A 90-day notice period applies afterwards. The Founder slot is consumed on provider countersignature. The first prorated invoice is issued on activation and is due in 14 days. Setup and onboarding are €0 and the sandbox is free. The partner must complete technical onboarding or launch the first production company within 90 days of activation.
Founder’s White Label
Limited Founder program for a final €99 per month during an initial 12-month commitment with a fixed-price guarantee from activation.
up to 500 active companies included, above 500 +€0.50 / company / month
API usage pay-per-use separately
White-Label Bronze
Standard white-label program from month 13 of the Founder period unless Kaja extends the €99 price, or outside Founder capacity.
up to 500 active companies
API usage pay-per-use separately
White-Label Silver
For growing ERP systems, accounting software and integrators with a larger active-company portfolio.
up to 2,000 active companies
API usage pay-per-use separately
White-Label Gold
For large partners, ERP solutions, banks, fintechs and distribution networks.
up to 5,000 active companies
API usage pay-per-use separately
White-Label Platinum / Enterprise
For large partners with individual SLAs, enterprise agreements, security requirements or non-public discounts.
5,000+ active companies
API usage pay-per-use separately
Kaja Solutions is currently not VAT registered; the listed amounts are final.
API usage is billed separately according to the public pay-per-use API pricing. The white-label fee covers the partner layer, brand and infrastructure access.
White-label covers brand and infrastructure access.
API documents and transactions are not included in the white-label fee. They are billed separately according to public API usage pricing.
More about white-label- ✓service under your brand
- ✓custom domain or branded URL
- ✓partner logo and name in the customer flow
- ✓clients are managed under the partner white-label program
- ✓ePošťák / Kaja Solutions s.r.o. provides the certified technical backend
- ✓sending and receiving documents via Peppol
- ✓API access
- ✓overview of active companies
Feature comparison
Free | Standard | Business | Enterprise API | |
|---|---|---|---|---|
| Inbox in the web interface | Receive up to 500/mo. (archived without GUI after limit) | without a monthly limit on the number of received documents | without a monthly limit on the number of received documents | does not apply |
| Inbox via API (programmatic) | — | — | — | according to Enterprise API pricing |
| Sends / month | 5 | 50 | 200 | by volume |
| Price over the limit | — | €0.25/doc | €0.20/doc | from €0.05/doc |
| Archive | 90 days | subscription + 30 days | subscription + 30 days | active contract term + agreed export period |
| Bulk export | — | ✓ | ✓ | ✓ |
| Invoicing via Telegram | — | ✓ | ✓ | — |
| Colleagues and accountant in one company | ✓ | ✓ | ✓ | — |
| Multiple own companies under one login | — | — | ✓ | — |
| Email support | README/FAQ | ✓ | priority | SK/EN email support |
| Phone support | — | business days · standard business hours | business days · standard business hours | business days · standard business hours |
| OAuth 2.0 onboarding | — | — | — | ✓ |
| Webhooks / OCR / bulk endpoints | — | — | — | ✓ |
| Multiple companies via one API key | — | — | — | ✓ |
| Availability target | — | 99.5% target | 99.5% target | 99.5% target |
Frequently asked questions.
Free costs €0 per month, Standard a final €8 and Business a final €19 per month. Enterprise API has no monthly API fee and is billed by documents actually sent and received. The optional Founder’s White Label costs a final €99 per month; API usage is billed separately.
Standard and Business have no subscription fee until 31 Dec 2026 and start billing from 1 Jan 2027. Enterprise API usage is billed from June 1, 2026 based on documents actually sent and received, with no monthly API fee, onboarding fee or sandbox fee.
Enterprise API uses progressive marginal bands: each portion of volume is billed at its own band rate, and reaching a higher band does not reprice earlier documents. The marginal rate from 5,001 to 20,000 documents is €0.05 for each sent and received document. For integrators, volume is aggregated across all connected companies; from 20,001 documents per month we prepare a custom quote.
The Free program has a monthly limit of 500 received and 5 sent documents. Standard includes 50 sends per month, while Business includes 200 sends, multiple own companies and a lower over-limit price. Choose Enterprise API when you need accounting software or ERP integration.
Yes, when the system can use our Enterprise API. For a specific ERP or integration interface, we can design an optional custom connector including AMQPS/RabbitMQ, Kafka or a hybrid Edge Connector. Scope, implementation price and operations are agreed in advance.
Free has a monthly limit of 500 received and 5 sent documents. Standard and Business include unlimited receiving through the web interface. Free receiving does not apply to Enterprise API, Connector/API, white-label or other programmatic or bulk integration use; those are governed by Enterprise API pricing or a separate agreement.