This repository documents an API for accessing one time passwords to verify credentials (e.g. phone numbers).

• The explainer is a developer-oriented preview of the API.
• the specification draft is aimed at browser developers.

The API has a test suite in the Web Platform Test project.

• Read the how-to instructions for example usage.

This API is inspired by and loosely based on the following discussions:

• SMS Verification on Android
• The one-time-code autocomplete API
• whatwg/html#3745 (comment)

The Web OTP API has also been discussed in the following places:

• discourse thread
• Blink intent-to-implement
• Blink intent-to-experiment
• TAG Review
• Origin Trials