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Terms of Service

Last updated: October 21, 2026

These Terms govern your use of AntAPI's website, Console, and APIs (the “Services”), operated by Ermulin studio. “AntAPI,” “we,” and “us” refer to Ermulin studio. By creating an account or using the Services, you agree to these Terms. If you use AntAPI for an organization, you confirm that you have authority to accept these Terms on its behalf.

1. Your account and organization​

You must be at least 18 years old, or the age of legal majority where you live, and legally able to enter into this agreement. Provide accurate account and billing information and keep it up to date.

You are responsible for activity authorized through your account and API keys, including activity by your team and applications. Keep passwords and keys confidential, revoke compromised keys promptly, and contact us if you suspect unauthorized access. Do not embed secret API keys in public code or browser applications.

An organization's owner manages its membership and billing. Organization members can access its projects and associated usage information under the permissions provided by the Services. Invite only people authorized to access that information.

2. Using the APIs​

Subject to these Terms, you may integrate the Services into your applications in accordance with the published API documentation, rate limits, and applicable law. Production API calls must use the documented AntAPI Gateway. You are responsible for your applications, your end users, and obtaining any permissions required to submit data or use results.

You must not:

  • Use the Services for unlawful activity, fraud, harassment, spam, or infringement of another person's rights.
  • Circumvent authentication, usage limits, billing, or other security controls; access another customer's data; or disrupt the Services.
  • Probe or exploit vulnerabilities without authorization, distribute malware, or use stolen credentials.
  • Submit sensitive personal information or regulated data unless the relevant API documentation expressly supports that use and any required agreement is in place.
  • Use domain registration information for unsolicited marketing, unlawful profiling, or other purposes prohibited by applicable law or source restrictions.

3. Credits, pricing, and payment​

API prices and billable units are published in the API reference and pricing pages. Subscription and Top-up offers, currency, taxes where applicable, and payment terms are shown at checkout. Review them before purchasing. Payments are processed through Stripe.

Credits are a prepaid right to use eligible Services. They are not money, a bank deposit, or a general payment instrument, and cannot be transferred or redeemed for cash except where required by law or expressly approved as a refund. Credits are shared within an organization. Promotional, subscription, and purchased Credits may have different eligibility and expiry conditions, as disclosed with the offer and in Console. Top-up Credits do not expire merely because a subscription period ends.

For paid work, AntAPI reserves the maximum authorized cost before execution. A reservation temporarily reduces your available Credits and is not a final charge. Free operations do not consume Credits. Synchronous per-request operations are charged for a successful request; per-item operations are charged for verified successful units under the published operation's definition. An asynchronous HTTP 202 response acknowledges acceptance and does not establish the final charge. At settlement, AntAPI charges successful units and releases the unused reservation. An operation with no billable units has no charge receipt.

A timeout, lost response, or disconnected client does not cancel authorized work. Successful work may still be charged. Cancellation stops work as described by the API; items already completed successfully remain billable. If the platform cannot verify the outcome before its safety deadline, it releases the remaining reservation and closes settlement without charging a later-arriving outcome.

Use the documented idempotency key to retry the same operation. A new operation can incur a new charge even if its input is identical. The price version is fixed when the original operation is created; later price changes apply to new operations. Console's ledger and charge receipts record the actual settlement.

For WHOIS, both a registered domain and a conclusively unregistered domain count as successful results. A cache hit can be billable. Invalid inputs, unknown outcomes, errors, and unexecuted items are not billable units. Normalized duplicate domains within one batch are counted once for billing. See the billing guide for details.

If you purchase a recurring subscription, you authorize recurring charges at the frequency and price disclosed at checkout until you cancel. Manage cancellation through Console's billing portal; it takes effect as described there. Unless an offer states otherwise or law requires otherwise, cancellation does not itself refund a completed payment.

Contact us about billing errors or refund requests, including the relevant payment or Request ID and a description of the issue. Never send passwords or API keys. Refunds are reviewed individually and are available where required by law. An approved refund may remove the corresponding unspent purchased Credits; it does not rewrite historical usage or receipts. Nothing in these Terms limits mandatory consumer refund rights.

4. Your data and API results​

You retain your rights in data you submit. You authorize us and the service providers involved in delivering the Services to process that data as necessary to execute your requests, secure the Services, and meet legal obligations. Our Privacy Policy explains our handling of personal information.

You may use API results in your applications subject to applicable law, these Terms, and any source-specific restrictions identified in the documentation. We do not grant ownership of third-party data. Domain registration data can be incomplete, redacted, cached, or outdated. Independently verify results before relying on them for consequential decisions. AntAPI does not register domains or guarantee their availability for registration.

Some APIs must store execution inputs and results to deliver asynchronous work. Product documentation describes result availability. Download results you need while they remain available; AntAPI is not a permanent archive.

5. Availability and changes​

We may maintain, update, or discontinue features and APIs. We will provide reasonable advance notice of material changes that adversely affect ongoing use where practicable. Urgent security, legal, or operational changes may take effect sooner. Unless a separate written agreement states otherwise, the Services have no guaranteed uptime or service-level commitment.

6. Suspension and termination​

You may stop using the Services at any time. Cancel recurring subscriptions separately through the billing portal and contact us to request account closure.

We may suspend or restrict access where reasonably necessary to address a breach of these Terms, nonpayment, fraud, security threats, or a legal requirement. Where practicable, we will explain the reason and give you an opportunity to resolve it. We may terminate access for material or repeated violations. Ending access does not cancel amounts already owed or remove rights to a refund required by law. Data retention after closure is described in the Privacy Policy.

7. Intellectual property​

We and our licensors retain rights in the Services, software, documentation, and branding. These Terms grant permission to use the Services; they do not transfer those rights. You may identify AntAPI as your API service provider, but may not imply endorsement or use our branding misleadingly.

8. Disclaimers and liability​

To the extent permitted by law, the Services are provided “as is” and “as available,” without warranties of merchantability, fitness for a particular purpose, non-infringement, or uninterrupted or error-free operation. You are responsible for assessing whether an API and its results meet your needs. Do not rely on the Services as the sole basis for safety-critical decisions.

To the extent permitted by law, neither party is liable under these Terms for indirect, incidental, special, or consequential damages, or lost profits, revenue, or business opportunities. AntAPI's aggregate liability arising out of the Services is limited to the amount you paid to AntAPI during the 12 months preceding the event giving rise to the claim. These exclusions and limits do not apply to fraud, willful misconduct, or liabilities that applicable law does not allow to be excluded or limited. They do not reduce your mandatory statutory rights.

9. General terms and updates​

Applicable mandatory law and consumer protections continue to apply. These Terms do not require arbitration or prevent you from bringing a claim before a court with jurisdiction. Please contact us first so we can try to resolve a concern.

If a provision is unenforceable, the remaining provisions continue in effect. A failure to enforce a provision is not a waiver. A separate written agreement signed with you takes precedence over these Terms to the extent of a conflict.

We may update these Terms. We will post the revised version and update the date above, and provide reasonable advance notice of material changes through the website, Console, or your account email where practicable. Changes do not retroactively change completed transactions. If you disagree with revised Terms, stop using the Services and cancel recurring subscriptions before they take effect.

10. Contact​

For questions about these Terms, billing, refunds, or account closure, contact Ermulin studio at [email protected]. Include the relevant account, payment, or Request ID where appropriate, but never send passwords or API keys.