Cypress SMS OTP Testing with a Real Phone Number and cy.task
Rent a number through an API, poll for the code in cy.task, and release the number even when the test fails.
Practical notes on testing SMS and OTP verification: Python and Playwright examples, receiving real OTP codes in automated tests, webhooks, CI pipelines and the edge cases that break phone verification. Written by Willette, who works with HeroSMS.