| Stripe | Billing and payment processing | US (SOC 2 Type II, PCI DSS Level 1) |
| Vercel | Website, REST API, and MCP hosting; edge CDN + TLS; snapshot file delivery (Blob) | Global edge (SOC 2 Type II, ISO 27001) |
| Neon | Live serving Postgres — the API backing store (read-only clone) | us-east-1; EU residency available on Enterprise (SOC 2 Type II) |
| Resend | Transactional email (download links, API tokens, corrections) | US / EU (SOC 2 Type II) |
| Google Workspace | Business email (data@, security@, corrections@) | US / EU (ISO 27001, SOC 2 Type II) |
| Vercel Web Analytics | Cookieless, first-party traffic & Core Web Vitals (no cross-site ID) | US / EU (SOC 2 Type II) |
| Google Analytics & Ads | Traffic analytics + ad-conversion measurement — consent-gated (Consent Mode v2); nothing sent before opt-in | US / EU (ISO 27001, SOC 2 Type II) |