1. Acceptance of terms
By creating an account or using the NaLU AI API, you agree to these Terms of Use. If you use NaLU AI on behalf of a company, you represent that you have authority to bind the company to these terms.
2. Description of service
NaLU AI provides a semantic extraction and data validation API for dialogues between AI agents and end users. The service is offered through plans with monthly credits.
3. Acceptable use
You agree not to use the service to:
- Process sensitive personal data without adequate legal basis (health, religion, sexual orientation, etc.)
- Circumvent rate or credit limits through technical means or multiple accounts
- Resell API access without an express commercial agreement with NaLU AI
- Any illegal activity or activity that violates third-party rights
4. Credits and payments
- Unused credits in a month do not carry over to the next billing cycle.
- Paid plans are billed monthly via Stripe. Cancellations take effect in the next cycle.
- No refunds for partially used credits, except for proven technical failure by NaLU AI.
- When credits are exhausted, calls return HTTP 402. No automatic additional charges.
5. Cancellation and right of withdrawal
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Right of withdrawal (Brazilian CDC, art. 49): within the first 7 calendar days after
subscribing, you may request cancellation with a full refund. Send an email to
with subject "Cancellation — withdrawal". Refunds are processed
within 5 business days.
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After 7 days: cancellation takes effect at the end of the current billing cycle.
Credits remain available until that date. No charge is made in the following cycle.
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Upgrades and downgrades can be requested at any time via Dashboard → Manage subscription.
Plan changes take effect at the next billing cycle.
6. Data privacy
The content of dialogues sent to the API is not stored. See our Privacy Policy for full details.
7. Availability and SLA
- Free and Starter plans: no formal SLA guarantee.
- Pro plan: target availability of 99% monthly. Compensatory credits in case of non-compliance.
- Scheduled maintenance is communicated 48h in advance.
8. Intellectual property
The NaLU AI API, documentation and infrastructure are the exclusive property of NaLU AI. Use of the service does not transfer any intellectual property rights to the user. The data you submit remains your property.
9. Limitation of liability
NaLU AI is not responsible for business decisions made based on validation results. The service is provided as a technical aid — final validation and use of extracted data is the responsibility of the contracting party.
10. Changes to terms
We reserve the right to change these terms at any time. Relevant changes will be communicated by email with 15 days notice. Continued use after that period implies acceptance of the new conditions.