xChk Privacy Policy

Effective: August 26, 2026

xChk provides an authorization and evidence layer for AI agents: it lets a person authorize, hold, or refuse an agent's consequential actions and keeps a tamper-evident record of what was decided. This policy explains what we collect, why, and your choices. Questions: support@xchk.io.

Information we collect

How we use information

SMS / text-message notifications

If you enable SMS approvals, xChk sends transactional authorization requests to the mobile number you provide — for example, a notice that one of your AI agents is requesting approval for a consequential action, with a link to review and decide. You opt in by entering and verifying your mobile number in your xChk account settings; consent is first-party and specific to your own account's notifications.

We do not share your mobile number, or the consent you give to receive text messages, with third parties or affiliates for their marketing purposes. Mobile information is used only to deliver the xChk notifications you asked for and to confirm their delivery.

How we share information

We share information only with service providers that help us operate (for example, our messaging carrier to deliver texts, and infrastructure providers), under agreements that limit their use to providing the service; when required by law; or with your direction. We do not sell personal information, and — as stated above — we do not share SMS opt-in data for third-party marketing.

Retention

Authorization records are retained as tamper-evident evidence for as long as your account is active and as needed for audit, legal, and dispute-resolution purposes. Account contact details are retained while your account is active. You may request deletion of personal data, subject to records we must retain by law.

Your choices

Changes

We may update this policy; material changes will be posted here with a new effective date.

xChk · Trust · Verify · Proof · Contact support@xchk.io · See also our Terms of Service.