Terms and conditions

Last updated: November 8, 2026

Español: Términos y condiciones. This English version is a translation provided for convenience. If it differs from the Spanish version, the Spanish version prevails.

These terms govern the use of the website liaengine.com, the customer dashboard and the LIA Engine service (the “Service”), provided by Laboratorio de Instrumentación Avanzada (LIA) (“LIA”). By creating your account and ticking the acceptance box, you accept these terms and the privacy policy.

1. The Service

LIA Engine sits between your systems and the artificial intelligence provider you choose. It receives your request, sends it to your provider with your key, verifies the answer against the rules and data of your request, corrects what can be calculated and delivers it to you with a signed certificate that anyone can check with LIA's public key.

LIA is not an artificial intelligence provider and does not write content on its own. An answer can have two origins, and the certificate states which one under “output origin”: (a) the content generated by the AI provider you choose, and (b) the values that LIA calculates or corrects with your data and your rules (for example, a total, a percentage or a conversion).

2. What the certificate attests to, and what it does not

• A “certified” answer meets all the rules of the contract that LIA builds from your request and from the rules you declare, verified by code against the data you sent. The certificate details those rules and their scope.
• The certificate does not attest to the truth of statements that cannot be verified with your data or your rules, nor to the accuracy of the data you send, nor to the suitability of the answer for a particular purpose.
• For the values that LIA calculates or corrects (section 1, (b)), LIA is liable for having calculated them correctly from the data and rules you sent. It is not liable for the accuracy of that data or for the use made of the result.
• Invoices and taxes: when your request is a tax computation (line items, VAT, tax collections or “percepciones”, withholdings or “retenciones”), LIA checks that each amount is correctly calculated with the data and percentages stated in your request. For the invoice total it applies Argentine practice: net amount + VAT + tax collections, without subtracting withholdings (these are applied by the payer), unless your request asks for the amount left “to collect” or “less withholdings”. LIA does not determine which rate, tax collection or regime applies to your transaction: you or your accountant decide that.
• If an answer cannot be certified, LIA reports this with the reason and does not present it as certified.
• The Service is a control tool. It is not professional advice (legal, accounting, medical, financial or of any other kind). The decisions you make with the answers are yours.

3. Your account and your keys

• To use the Service you need an account, which you create by signing in with Google. You must be over 18 years of age and use the Service for your professional activity or that of your organization.
• LIA keys (lia_…) are personal to your account. Keep them in a safe place, and do not publish them or share them outside your organization. You are responsible for all use made with your keys until you revoke them from the dashboard.
• Each plan allows a maximum number of keys active at the same time: 5 on the Starter plan, 20 on Professional and 100 on Business; on Corporate, the number agreed by contract. To create a new key once you reach the limit, revoke one you don't use or move to a higher plan.
• You write the name or label of each key, and it is declarative: LIA does not check who uses the key. The signed certificate attests to which key made the request and what name that key had at that moment, not to the identity of the person who used it. If you need to know who used it, give each person their own key and do not share it.
• If you suspect a key has leaked, revoke it immediately and let us know.

4. Your AI provider

• You choose the AI provider, contract with it and pay it directly, under its own terms and prices. LIA does not charge for or resell your provider's tokens.
• Your provider key travels with each request and LIA uses it only to forward the request. LIA does not store it.
• LIA is not liable for the availability, failures, changes, prices or content generated by your provider. If your provider does not respond or rejects the request, that request is not counted against your plan.

5. Acceptable use

You may not use the Service to:

• carry out illegal or fraudulent activities or activities that infringe the rights of third parties;
• send personal data of third parties without having the right to do so, or sensitive data that is not necessary;
• attempt to access other people's accounts, keys or data, overload the Service, circumvent its limits or attack its security;
• copy, decompile or reverse engineer the Service or its verification method;
• resell the Service or provide it to third parties as your own without a written agreement with LIA.

Public certificates. If you publish a certificate from your dashboard, you are responsible for its content: do not publish personal data of third parties, confidential information or anything that violates the law or the rights of others. LIA may remove a published certificate that breaches these rules. You can remove it yourself whenever you want.

The Service has per-minute usage limits to protect it. If you breach these rules, LIA may suspend or close your account, notifying you by email when possible.

6. Free trial

Each new account has 50 free verifications to try the Service, with no card. The trial does not renew or accumulate. LIA may change or end the free trial for new accounts at any time, and limit it if it detects abuse (for example, several accounts belonging to the same person).

7. Plans, prices and payments

• A verification is each request the Service processes with your key. Requests that cannot be processed (for example, because your AI provider did not respond) are not counted.
• Plan verifications are per monthly period: unused ones do not carry over to the next period. If they run out, the Service stops processing requests until the next period or until you move to a higher plan.
• Plans are paid in advance, monthly, through a Mercado Pago subscription that renews automatically every month until you cancel it. The plan is activated when Mercado Pago confirms the payment.
• You can upgrade your plan from your dashboard whenever you want: the new plan is charged from that day and, when Mercado Pago confirms the payment, the new plan is activated and the previous subscription is cancelled automatically. The time remaining on the previous plan is not refunded. To downgrade, cancel the current subscription: your plan continues until the end of what you paid for, and then you subscribe to the new one.
• Currency: prices are stated in US dollars and charged in Argentine pesos, converted at the official selling exchange rate of Banco de la Nación Argentina on the day you subscribe, rounded up to the nearest hundred. At each monthly renewal, the peso amount for the following month is updated to the exchange rate on the day of that renewal, so it may vary from one month to another; the price in dollars does not change. Before you pay, the dashboard shows the amount in pesos and the exchange rate used.
• Published prices are final prices: no LIA tax or charge is added when you pay. The owner is registered under the Simplified Regime (monotributo) and therefore issues, for each payment, a “factura C” invoice, which does not itemize VAT. The invoice is available in your dashboard (Invoices) to download whenever you want. It is issued to a final consumer, unless before the payment you enter your company's details in the dashboard (CUIT tax ID, company name, VAT status and address): in that case it is issued in the company's name. Invoices already issued are not modified.
• If we change prices, we will notify you at least 30 days in advance, and the change applies from the following period.
• The Corporate plan is contracted by written agreement, which sets its conditions (for example, dedicated server, availability commitment or signing certificates with your key). To the extent that agreement governs a matter, it prevails over these terms.

8. Cancellation, withdrawal and account closure

• You can cancel your plan whenever you want, from your dashboard (Your plan → Cancel subscription) or by writing to liaengine26@gmail.com from your account's email. On cancellation, Mercado Pago stops charging; the plan remains active until the end of the paid period and does not renew. There are no proportional refunds for periods already started, except as provided in the next item.
• If you are a consumer within the meaning of Consumer Protection Law No. 24,240, you may revoke the contract within 10 calendar days from the date you entered into it, at no cost and without giving reasons, and what you paid will be refunded. You can do this using the withdrawal button (“botón de arrepentimiento”), which is on the first screen and at the bottom of the site, with no need to sign in to your account; when you submit it you receive a request code. When a payment already invoiced is refunded, LIA issues the credit note that voids the invoice, which is also available in your dashboard.
• You can request the closure of your account at any time by writing to liaengine26@gmail.com from your account's email. On closure, your data is deleted in accordance with the privacy policy.
• LIA may discontinue the Service generally by giving at least 30 days' notice and refunding the unused portion of the paid periods.

9. Availability

We do what is reasonable to keep the Service running continuously, but there may be interruptions due to maintenance, failures or causes beyond LIA's control (for example, from your AI provider or the internet). Unless an availability commitment is agreed in writing (Corporate plan only), the Service is provided without any availability guarantee. We recommend that you plan in your systems what to do if the Service does not respond.

The response times we show on the site or in the dashboard are approximate and for guidance: they depend on the server, the network, the size of the request and, above all, your AI provider. They are not a response time commitment. Such a commitment exists only if agreed in writing (Corporate plan).

10. Intellectual property

• The software, the verification method, the brand and the LIA Engine site belong to LIA. These terms give you a limited, non-exclusive right of use, personal to your account, for as long as your account is active.
• The certificate verifier (verificar_certificado.js) and LIA's public key may be used freely, by anyone and without an account (for example, your auditor, your customers or an authority), at no cost and indefinitely. The verifier is published under the MIT license, which appears at the beginning of the file; that license remains in force even if your account is closed.
• Your requests, your data and the answers you receive are yours. You give us permission to process them only to provide you with the Service.

11. Personal data

The processing of personal data is governed by the privacy policy, which forms part of these terms. With respect to third-party data you send in your requests, LIA acts as a service provider on your behalf.

12. Liability

• To the extent permitted by law, LIA's total liability for any claim related to the Service is limited to the amount you paid LIA for the Service in the 3 months before the event giving rise to the claim.
• LIA is not liable for loss of profits, loss of data not in its custody, indirect damages, or the content generated by your AI provider (section 1, (a)) or the decisions you make with the answers. The values that LIA calculates or corrects are governed by section 2 and by the limit in this section.
• These limitations do not apply in the event of willful misconduct (“dolo”) or gross negligence (“culpa grave”) by LIA, nor do they restrict the non-waivable rights granted to you by law, including those under Law No. 24,240 if you are a consumer.

13. Changes to these terms

We may update these terms. We will publish the current version on this page with its date. If the change is important, we will notify you by email or in the dashboard at least 15 days in advance and ask you to accept it the next time you sign in. If you do not agree, you can cancel before it takes effect.

14. Fortuitous events and force majeure

LIA is not liable for breaches caused by events beyond its control that it could not foresee or that, if foreseen, it could not avoid (for example, widespread internet or power outages, hosting provider failures, natural disasters or decisions by authorities), under article 1730 of the Argentine Civil and Commercial Code. While they last, LIA will do what is reasonable to restore the Service and will keep you informed.

15. Assignment

You may not assign your account or your position under these terms without LIA's written agreement. LIA may assign them to whoever continues to provide the Service under the same conditions, giving you at least 30 days' notice; if you do not agree, you can cancel before the assignment takes effect.

16. Severability

If any clause of these terms is declared void or unenforceable, the rest remains in force, and that clause is completed in accordance with the law.

17. Governing law and jurisdiction

These terms are governed by the laws of the Argentine Republic. In the event of any dispute, we will first try to resolve it in good faith by email. If that is not possible, the competent ordinary courts of the Argentine Republic will have jurisdiction; if you are a consumer, those of your place of residence.

18. Responsible party and contact

Laboratorio de Instrumentación Avanzada (LIA) is the trade name under which the Service is provided, in the Argentine Republic.

• Owner: Walter Damián Cabrera.
• CUIT (tax ID): 20-29046871-0 · Monotributo (Simplified Regime for Small Taxpayers).
• Address: Pasaje Evaristo Carriego 1147 (C1406), Ciudad Autónoma de Buenos Aires, Argentine Republic.
• Contact: liaengine26@gmail.com.