Terms of service

You are responsible for the accuracy of your account information, all activity under your account, and keeping API keys and credentials secure. Do not expose API keys in public repositories, client-side applications, or other locations accessible to unauthorized users.

Your plan determines request limits, rate limits, key allowances, support level, and available features. Paid plans are billed monthly in advance in the currency shown at checkout. You may change your plan from the dashboard.

You may cancel at any time in the Stripe customer portal opened from the dashboard. Cancellation takes effect at the end of the current billing period. The plan stays available until that time. During a Builder trial, cancel before the trial ends if you do not want the paid subscription to start. We do not refund fees for a partial billing period, because the service is digital, except where the law requires a refund.

You may not use the service to violate law, infringe rights, bypass access controls, disrupt the API, conceal abusive traffic, resell raw access without authorization, or place unreasonable load on the platform. We may throttle or suspend activity that threatens the service or other customers.

Premium Vault owns the API, documentation, software, normalized data model, and service branding. Card names, game names, artwork, and related marks belong to their respective rights holders. Your use of the API does not grant ownership of third-party intellectual property.

We work to keep the API reliable and compatible, but availability is not guaranteed unless a separate written service-level agreement applies. We may update endpoints, limits, plans, and these terms. Material changes will be communicated through the dashboard, documentation, or account email when appropriate.

You may stop using the service at any time. We may suspend or terminate access for nonpayment, security risk, abuse, or violation of these terms. Provisions that by their nature should survive termination will remain in effect.

To the maximum extent permitted by law, the service is provided without implied warranties and Premium Vault is not liable for indirect, incidental, special, or consequential damages. These terms are governed by the laws of Japan, without regard to conflict-of-law rules.