Infrastructure
What runs the service
The kinds of services Clafk relies on to operate.
Service infrastructure
Each of these maps to a provider listed on the Subprocessors page.
Application hosting
Vercel
Managed hosting for the Clafk application.
Database & authentication
Supabase
Managed database and authentication infrastructure.
Mailbox integrations
Google · Microsoft
Gmail and Outlook, connected under a user-granted OAuth authorisation.
AI processing
Anthropic · OpenAI
Supports AI-assisted product functionality.
Billing
Stripe
Subscription payments. Mailbox content is not sent to it.
Monitoring
Sentry
Detects and diagnoses production errors while limiting exposure of customer content.
The data each provider handles is set out on the Subprocessors page.
Data location
Clafk is established in Finland, and Clafk’s production database infrastructure is hosted in the European Union (Ireland). This does not mean that the entire Clafk service is EU-hosted.
Some subprocessors may process data outside the European Economic Area. Where required, recognised transfer mechanisms are used, such as Standard Contractual Clauses or an adequacy decision.
Current details for a given provider are available from the Security Team on request.
Last updated 3 August 2026.