LucentStar AI uses the following third-party data processors ("subprocessors") to operate the lucentstar.ai website and the LucentSignal platform. This list is maintained in accordance with our obligations under UK GDPR and EU GDPR.
All subprocessors are required to process personal data in accordance with applicable data protection law and have agreed to appropriate contractual safeguards with LucentStar AI.
Subprocessor
Country
Transfer mechanism
Purpose
Data processed
Anthropic PBC
USA
Standard Contractual Clauses
AI content generation via Claude API
User-submitted prompts, ghost writing profile data, brand voice content
Stripe Inc.
USA
Standard Contractual Clauses / UK Addendum
Subscription billing and payment processing
Name, email, billing event data, Stripe customer ID
Resend Inc.
USA
Standard Contractual Clauses
Transactional and marketing email delivery
Name, email address, unsubscribe token
Railway Corporation
USA
Standard Contractual Clauses
Application hosting and managed PostgreSQL database
All application data: user accounts, posts, sessions, billing records
We will provide at least 14 days notice of any new subprocessors or material changes to existing subprocessors by updating this page and, for registered users, by email notification. If you object to a new subprocessor, you may contact us at hello@lucentstar.ai within the notice period.
If your organisation requires a Data Processing Agreement (DPA) with LucentStar AI, please contact hello@lucentstar.ai. We will respond within 10 working days.
This subprocessor list was last updated on 6 May 2026. The current version is always available at lucentstar.ai/legal/subprocessors.
Data protection queries: hello@lucentstar.ai