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Terms of Service

Last updated: April 10, 2026

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Plain-language summary: Use OpaqueVault lawfully, pay for what you use, don't abuse the service, and understand that your secrets are yours — we cannot read them. If something goes wrong, our liability is limited to what you paid us in the last 12 months. Arizona law governs this agreement.

1. Acceptance of terms

By creating an account or using any part of the OpaqueVault platform (the "Service"), you agree to these Terms of Service ("Terms") and our Privacy Policy, which are incorporated here by reference. If you are using the Service on behalf of an organization, you represent that you have authority to bind that organization to these Terms.

These Terms constitute a legally binding agreement between you and OpaqueVault, Inc., a company incorporated in the State of Arizona, United States ("OpaqueVault," "we," "us," or "our").

2. Eligibility

You must be at least 13 years old to use the Service. By agreeing to these Terms, you represent and warrant that you meet this requirement. If you are under 18, you represent that your parent or guardian has reviewed and agreed to these Terms.

3. Your account

Registration

You must provide an accurate email address and create a master password to register. You are responsible for maintaining the confidentiality of your master password. OpaqueVault cannot recover your master password or your encrypted secrets if you lose your master password — this is a consequence of the zero-knowledge architecture, not a limitation we can work around.

Account security

You are responsible for all activity that occurs under your account. Notify us immediately at [email protected] if you suspect unauthorized access to your account.

One account per person

Free tier accounts are limited to one account per person. Creating multiple free accounts to circumvent plan limits is a violation of these Terms and grounds for immediate termination of all associated accounts.

4. Acceptable use

You agree not to use the Service to:

  • Violate any applicable law or regulation
  • Store, transmit, or process content that violates any third-party rights
  • Attempt to gain unauthorized access to any part of the Service or its related systems
  • Probe, scan, or test the vulnerability of any OpaqueVault system or network
  • Introduce malware, viruses, or other harmful code
  • Interfere with or disrupt the integrity or performance of the Service
  • Use the Service to store credentials for systems you are not authorized to access
  • Circumvent any rate limits, usage limits, or access controls
  • Resell, sublicense, or otherwise commercialize access to the Service without prior written consent

Authorized security research and penetration testing of your own systems using secrets stored in OpaqueVault is permitted and encouraged. See our Security page for responsible disclosure guidelines.

5. Plans and payment

Free tier

The Free tier is provided at no charge subject to usage limits published on our Pricing page. We reserve the right to modify Free tier limits with 30 days notice.

Paid plans

Paid plans are billed in advance on a monthly basis. All fees are non-refundable except as required by law or as explicitly stated in these Terms. Prices are in USD and exclude applicable taxes.

Payment processing

Payment processing is handled by Stripe. By providing payment information, you authorize OpaqueVault and Stripe to charge the applicable fees. You represent that you are authorized to use the payment method provided.

Upgrades and downgrades

Plan upgrades take effect immediately. Plan downgrades take effect at the end of the current billing period. If a downgrade would put you over the plan's limits (e.g., more secrets than the plan allows), you must reduce usage before the downgrade takes effect, or the downgrade will be blocked.

Late payment and suspension

If payment fails, we will retry the charge and notify you by email. Accounts with outstanding balances may be suspended after 7 days of non-payment. Suspended accounts retain their encrypted data for 30 days, after which the account and all associated data are permanently deleted.

6. Intellectual property

Your content

You retain all rights to the secrets and data you store in OpaqueVault. Because your secret values are encrypted client-side before reaching our servers, we do not have access to them and cannot and do not claim any rights over them.

Our IP

OpaqueVault and its licensors retain all rights to the Service, including the software, documentation, and all associated intellectual property. These Terms do not grant you any right to use OpaqueVault's trademarks, logos, or brand features without prior written consent.

Feedback

If you submit feedback, suggestions, or ideas about the Service, you grant OpaqueVault a perpetual, irrevocable, royalty-free license to use that feedback for any purpose without compensation to you.

7. Confidentiality and zero-knowledge architecture

OpaqueVault is architecturally zero-knowledge: your secret values are encrypted on your device before transmission and we store only ciphertext. This means:

  • We cannot read your secret values
  • We cannot recover your secrets if you lose your master password
  • We cannot comply with a subpoena requesting your plaintext secret values — we do not have them
  • We cannot grant support access to your secrets

This architecture is a feature, not a limitation. It is your responsibility to maintain access to your master password and to export or back up critical secrets through means you control.

8. Service availability and SLA

We aim to provide a reliable service but do not guarantee 100% uptime. Paid plans (Solo, Pro) target 99.9% monthly uptime, measured as successful API responses. Enterprise plans include uptime SLA terms negotiated at contract time.

Scheduled maintenance will be announced at least 24 hours in advance when possible. Downtime due to circumstances outside our control (DDoS attacks, upstream provider outages, force majeure events) does not count against uptime targets.

9. Termination

Termination by you

You may close your account at any time from app.opaquevault.com → Settings → Delete Account. Account closure is permanent and irreversible. All encrypted data is deleted within 30 days. No refunds are issued for unused portions of a billing period.

Termination by OpaqueVault

We may suspend or terminate your account immediately if we determine, in our sole discretion, that you have violated these Terms, engaged in fraudulent activity, or pose a security risk to the Service or other users. For non-urgent violations, we will attempt to provide 30 days notice before termination.

Effect of termination

Upon termination, your right to use the Service ceases immediately. Sections 6, 7, 10, 11, 12, and 13 survive termination.

10. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, OPAQUEVAULT DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

OPAQUEVAULT DOES NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS. YOU USE THE SERVICE AT YOUR OWN RISK.

11. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, OPAQUEVAULT'S TOTAL LIABILITY TO YOU FOR ANY CLAIM ARISING FROM OR RELATED TO THESE TERMS OR THE SERVICE SHALL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID OPAQUEVAULT IN THE 12 MONTHS PRECEDING THE CLAIM OR (B) $100 USD.

IN NO EVENT SHALL OPAQUEVAULT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING LOSS OF PROFITS, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES, EVEN IF OPAQUEVAULT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Some jurisdictions do not allow certain warranty disclaimers or liability limitations. To the extent prohibited by applicable law, these limitations do not apply to you.

12. Indemnification

You agree to indemnify, defend, and hold harmless OpaqueVault and its officers, directors, employees, and agents from and against any claims, liabilities, damages, losses, and expenses (including reasonable attorneys' fees) arising out of or in any way connected with your use of the Service, your violation of these Terms, or your violation of any third-party rights.

13. Governing law and disputes

These Terms are governed by the laws of the State of Arizona, United States, without regard to its conflict of law provisions. You agree to submit to the exclusive personal jurisdiction of the state and federal courts located in Maricopa County, Arizona for resolution of any dispute arising out of these Terms or the Service.

Before filing any legal action, you agree to contact us at [email protected] and attempt to resolve the dispute informally for at least 30 days.

14. Changes to these terms

We may update these Terms from time to time. We will notify you of material changes by email and by posting a notice on the site at least 30 days before the change takes effect. Your continued use of the Service after the effective date of the updated Terms constitutes acceptance. If you do not agree to the updated Terms, you must stop using the Service and close your account.

15. Miscellaneous

  • Entire agreement: These Terms and the Privacy Policy constitute the entire agreement between you and OpaqueVault regarding the Service.
  • Severability: If any provision of these Terms is found unenforceable, the remaining provisions remain in full force and effect.
  • No waiver: Our failure to enforce any right or provision of these Terms is not a waiver of that right or provision.
  • Assignment: You may not assign these Terms without our prior written consent. We may assign these Terms without restriction.
  • Force majeure: We are not liable for delays or failures in performance caused by circumstances beyond our reasonable control.

16. Contact

Questions about these Terms: [email protected]
OpaqueVault, Inc. · Arizona, United States

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