| Supabase | Authentication and database infrastructure | Account, profile, progress, and app data |
| Stripe | Subscription billing and payment processing | Customer, billing, and payment metadata |
| Resend | Transactional and lifecycle email delivery | Email address and email event data |
| Anthropic | Mentor chat and reasoning tasks | Prompt context and message content |
| Google Gemini | Background summarization and support tasks | Selected product context and task payloads |
| OpenAI | Embeddings for retrieval and knowledge search | Knowledge and retrieval text payloads |
| Vercel | Hosting, runtime, and cron execution | Standard server logs and request metadata |