Enrolling a user authentication device using the API

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Application developers can use the API operations to enroll a user’s authentication device.

Use the following POST operation:
```
POST https://api.pingone.com/v1/environments/{{envId}}/users/{{userId}}/devices
```
For details, see POST: CREATE MFA User Device (SMS), POST: CREATE MFA User Device (Email), or POST: CREATE MFA User Device (TOTP) in the API reference.
To complete pairing the device as an MFA authentication device with the user account, submit the OTP that was received in the notification, by using the following POST operation:
```
POST https://api.pingone.com/v1/environments/{{envId}}/users/{{userId}}/devices/{{deviceId}}
```
For details, see POST: Activate MFA User Device in the API reference.