Terms of service

Last updated October 7, 2026

By using Stygian, you agree to these terms and our Privacy Policy. Questions about the service or billing can be sent to z@onyxlab.ai.

Your workspace and accounts

Connect only accounts you own or are authorized to manage. You are responsible for your content, assets, account permissions, and automation instructions. Persona and network features must not be used to impersonate others, deceive audiences, send spam, or manufacture engagement. Follow each platform’s rules and the rules of any group where you publish.

Subscription and cancellation

The Growth plan costs $99 USD per month and renews monthly until canceled. Checkout displays the amount before you pay. One subscription covers the businesses owned by your sign-in account. The designated admin accounts have complimentary access. You can cancel through Settings → Manage subscription before the next renewal; cancellation normally takes effect at the end of the paid period. Contact us for payment questions or refund requests. AI provider, social API, mailbox, and other third-party charges are separate.

Content and automation

You retain your rights in content you supply and authorize Stygian and your selected providers to process it to deliver the service. AI output can be inaccurate and should be reviewed. You control which accounts may receive content and whether supported automation may deliver it. Stygian does not guarantee growth, engagement, revenue, uninterrupted provider access, or approval of developer applications.

Connected services

Third-party services can limit, revoke, or change access. Some publishing flows require a final action in the provider’s app. By using Stygian’s YouTube features, you also agree to the YouTube Terms of Service. By using Stygian’s TikTok features, you also agree to the TikTok Terms of Service. Stygian posts to TikTok publicly only when you confirm that post on the Post to TikTok screen, including the music usage declaration TikTok requires; scheduled and automated deliveries are sent to your TikTok drafts. Authorizations may be revoked through your provider or Stygian’s connection settings.

Service changes

We may update these terms and the service as features or provider requirements change. The date above identifies this version. Contact us if a change affects your subscription or you need assistance closing your account.

Stygian is operated by Silicon Vanguard LLC, 2108 N St, Ste N, Sacramento, CA 95816.