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Enable customer sign-in with Resend

Set up Resend email delivery and enable the sign-in methods your product needs.

Configure the Resend API key and email-code sign-in in the deployment environment. Website settings can manage the verified sender address and name; restart the API after sender changes. Provider keys cannot be edited in the operator console.

Google and GitHub sign-in are optional. Configure their client credentials and callback URLs on the backend when you need them. The frontend shows methods enabled by the API. Verify sign-in, account creation, and sign-out with an email you control before inviting customers.

APP_AUTH_EMAIL_ENABLED=true
APP_AUTH_EMAIL_DEBUG=false
APP_EMAIL_PROVIDER=resend
APP_EMAIL_RESEND_API_KEY=<your-resend-api-key>
APP_EMAIL_RESEND_SENDER_EMAIL=<your-verified-sender>

How service settings take effect

Get a Resend API key

Check customer sign-in