provider Otp POST /v1/otps/email/send
@utdk/stytch /v1/otps/email/send
Send
Send a One-Time Passcode (OTP) to a User using their email. If you'd like to create a user and send them a passcode with one request, use our [log in or create endpoint](https://stytch.com/docs/api/log-in-or-create-user-by-email-otp). ### Add an email to an existing user This endpoint also allows you to add a new email address to an existing Stytch User. Including a `user_id`, `session_token`, or `session_jwt` in your Send one-time passcode by email request will add the new, unverified email address to the existing Stytch User. If the user successfully authenticates within 5 minutes, the new email address will be marked as verified and remain permanently on the existing Stytch User. Otherwise, it will be removed from the User object, and any subsequent login requests using that email address will create a new User. ### Next steps Collect the OTP which was delivered to the user. Call [Authenticate OTP](https://stytch.com/docs/api/authenticate-otp) using the OTP `code` along with the `email_id` found in the response as the `method_id`.

Try it

Authentication
Configure credentials for Stytch API
Gateway
The gateway proxies requests and injects credentials server-side. Configure credentials above, then enter your gateway URL.

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apiOtpV1OtpEmailSend
POST/v1/otps/email/send
Send a One-Time Passcode (OTP) to a User using their email. If you'd like to create a user and send them a passcode with one request, use our [log in or create endpoint](https://stytch.com/docs/api/log-in-or-create-user-by-email-otp). ### Add an email to an existing user This endpoint also allows you to add a new email address to an existing Stytch User. Including a `user_id`, `session_token`, or `session_jwt` in your Send one-time passcode by email request will add the new, unverified email address to the existing Stytch User. If the user successfully authenticates within 5 minutes, the new email address will be marked as verified and remain permanently on the existing Stytch User. Otherwise, it will be removed from the User object, and any subsequent login requests using that email address will create a new User. ### Next steps Collect the OTP which was delivered to the user. Call [Authenticate OTP](https://stytch.com/docs/api/authenticate-otp) using the OTP `code` along with the `email_id` found in the response as the `method_id`.

Input

required

The email address of the user to send the one-time passcode to. You may use sandbox@stytch.com to test this endpoint, see [Testing](https://stytch.com/docs/home#resources_testing) for more detail.

Set the expiration for the one-time passcode, in minutes. The minimum expiration is 1 minute and the maximum is 10 minutes. The default expiration is 2 minutes.

The unique ID of a specific User. You may use an `external_id` here if one is set for the user.

The `session_token` associated with a User's existing Session.

The `session_jwt` associated with a User's existing Session.

Use a custom template for login emails. By default, it will use your default email template. Templates can be added in the [Stytch dashboard](https://stytch.com/dashboard/templates) using our built-in customization options or custom HTML templates with type “OTP - Login”.

Use a custom template for sign-up emails. By default, it will use your default email template. Templates can be added in the [Stytch dashboard](https://stytch.com/dashboard/templates) using our built-in customization options or custom HTML templates with type “OTP - Sign-up”.

Enter a gateway URL above to enable sending.

Code snippet
Updates live as you fill in the form above.

TypeScript

import stytch from '@utdk/stytch';

await stytch.apiOtpV1OtpEmailSend()