What Sift does
Sift is a read-only AI email triage tool. It connects to your Gmail account, reads your incoming emails, and uses AI to classify them with a verdict (read or skip), summary, tag, and emoji. Sift never sends, deletes, or modifies your emails in Gmail.
Data we collect
- Google account info: Your name, email address, and profile picture via Google OAuth.
- Gmail messages: Sender name, sender email, subject line, and a truncated plain-text body (max 2,000 characters) of emails received in the last 7 days.
- OAuth tokens: Google access and refresh tokens to read your Gmail on your behalf. These are stored securely in our database and never exposed to the client.
How we use your data
- Email content is sent to Anthropic's Claude API for classification. Anthropic does not use API inputs to train models.
- We store email metadata and AI-generated summaries in our Supabase database, scoped to your user account.
- Emails automatically expire and are deleted after 7 days unless you explicitly keep them.
- We do not sell, share, or monetize your data in any way.
Data storage and security
Your data is stored in Supabase (PostgreSQL) with row-level security — you can only access your own data. All communication happens over HTTPS. OAuth tokens are stored server-side and never sent to the browser.
Third-party services
- Google Gmail API — Read-only access to fetch your email (scope:
gmail.readonly). - Anthropic Claude API — AI email classification. Email content is processed but not retained by Anthropic.
- Supabase — Authentication and database hosting.
- Vercel — Application hosting.
Your rights
- You can revoke Sift's access at any time from your Google Account permissions.
- You can request deletion of all your data by contacting us.
- Non-kept emails are automatically deleted after 7 days.