AventopayAventopay

Terms of Sale

Last updated: July 22, 2026

1. Purpose

These Terms of Sale ("TOS") govern the commercial relationship between AventoPay UAB, a Lithuanian company registered under number 307634152, whose registered office is at Architektų g. 56-101, LT-04111 Vilnius, Lithuania ("Aventopay"), and any individual or legal entity acting on a professional basis subscribing to Aventopay's services ("Merchant").

These TOS apply to the exclusion of all other conditions, unless otherwise agreed in writing.

2. Services offered

Aventopay orchestrates the entire online payment acceptance chain for the Merchant. The service notably includes:

  • A REST API for payment integration;
  • A merchant dashboard for managing accounts, API credentials, reporting and transactions;
  • A hosted payment page and an embeddable iframe component;
  • A webhook system with retry queue and HMAC signature;
  • The activation and monitoring of a payment account in the Merchant's name, allowing the acceptance of their customers;
  • Technical documentation and email support.

The execution of payment operations is performed by one or more licensed institutions within the European Union, selected by Aventopay. Aventopay does not hold a payment institution licence and the transaction funds do not transit through its accounts.

3. Subscription and activation

Subscription is done via the creation of a Merchant account on avento-pay.com. The opening of the account is subject to acceptance of the TOU and these TOS.

Access to production payment functionalities is subject to regulatory verification of the Merchant's profile — required by European payment regulation and by AML/CTF. This verification covers notably the identity of the legal representative, the registration of the company, the payout IBAN and the description of the activity. Aventopay drives this verification journey and reserves the right to refuse or suspend an activation whose profile does not meet the applicable requirements.

4. Price and billing

4.1 Pricing model

The service is remunerated by a commission per successful transaction, expressed as a percentage excl. VAT of the amount collected. This commission is evolving and degressive: it starts from 2.6% excl. VAT per transaction and is determined by the Merchant's sector of activity and monthly volume.

The indicative grid is published on the /pricing page. The exact rate applicable to the Merchant is confirmed at account activation, based on the validated profile, and remains visible in the dashboard. Special conditions may be agreed in writing with high-volume Merchants.

4.2 Deduction method

The Aventopay commission is deducted automatically and transparently at the time of processing each transaction, before payout of the net funds to the Merchant. No direct payment is required from the Merchant.

4.3 VAT

As of the publication date, AventoPay UAB is not subject to VAT. Invoices for services are issued excluding tax. This situation is subject to change; the Merchant will be informed if necessary.

4.4 Billing

A summary of deducted commissions is made available to the Merchant in their dashboard. A monthly invoice can be generated on request at contact@avento-pay.com.

5. Duration and termination

The service is provided without duration commitment, on a monthly basis with tacit renewal.

The Merchant may terminate their account at any time from their dashboard, without reason or notice. Termination results in account closure and cessation of associated services. Transactions already processed remain governed by these TOS.

Aventopay may terminate the contract with 30 days' notice, or without notice in case of serious breach by the Merchant of the TOU, applicable rules to payment methods or applicable law.

6. Refunds and disputes

Refunds to end customers are the exclusive responsibility of the Merchant, who can initiate them from their dashboard. The operational modalities (refund window, partial refund, return of funds to the original payment method) are described on the /refunds page.

In case of refund, total or partial, of a transaction, the Aventopay commission deducted on this transaction remains earned. It corresponds indeed to a technical service already rendered (processing of the initial payment, strong authentication, securing, logging, webhook provision). The Merchant may nevertheless request in writing an exceptional commercial treatment in case of proven fraud or error attributable to Aventopay.

Disputes (chargebacks) declared by an end customer with their bank are notified to the Merchant in the dashboard. The Merchant provides the defense pieces (proof of delivery, TOS accepted, customer exchanges) within the allotted time. Strong authentication applied by Aventopay at the time of payment helps reduce this risk.

7. Merchant obligations

The Merchant undertakes to:

  • Provide accurate information at subscription and regulatory verification, and keep it up to date;
  • Not use the service for prohibited activities (see TOU, article 6, and the /prohibited-activities page);
  • Comply with the rules applicable to accepted payment methods (international card networks, wallets), notably regarding strong authentication and security;
  • Hold all authorisations, licences or declarations required for their activity.

8. Warranty and liability

Aventopay undertakes to provide a service compliant with its description and to implement the best security practices: TLS 1.3, HMAC-SHA256 signatures, multi-tenant isolation, PCI DSS Level 1 certified infrastructure.

Aventopay cannot be held liable for damages related to:

  • Abusive or non-compliant use of the service by the Merchant;
  • Decisions or malfunctions attributable to licensed institutions executing payment operations, card networks or the Merchant's bank;
  • Force majeure events within the meaning of Lithuanian law;
  • Indirect damages (loss of revenue, loss of data, reputational harm).

Within the limits authorised by law, the overall liability of Aventopay is capped at the amount of commissions effectively invoiced to the Merchant during the twelve (12) months preceding the triggering event.

9. Pricing modifications

Aventopay reserves the right to modify its pricing. Any substantial modification will be notified to active Merchants by email with at least 30 days' notice. The Merchant may terminate their account without fees before the new pricing takes effect.

10. Applicable law and jurisdiction

These TOS are governed by Lithuanian law. Any dispute relating to their interpretation or execution falls within the exclusive jurisdiction of the courts of Vilnius, Lithuania, except for mandatory legal provisions to the contrary.

11. Contact

For any commercial question: contact@avento-pay.com.