# OTPs

Send OTP (One-time passcodes) by all the supported delivery methods such as SMS, email.


## Operations
- [Login or Create User by SMS](https://developers.streambird.io/operation/operation-loginorcreateuserbysms.md)
- [Create SMS OTP](https://developers.streambird.io/operation/operation-createsmsotp.md)
- [Login or Create User by Email OTP](https://developers.streambird.io/operation/operation-loginorcreateuserbyemailotp.md)
- [Create Email OTP](https://developers.streambird.io/operation/operation-createemailotp.md)
- [Verify OTP (One-time passcode)](https://developers.streambird.io/operation/operation-verifyotp.md)

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