MailSlurp guide agent setup Title: Testing SMS based authentication (2FA/OTP) Description: How to test applications that use two-factor (2FA) authentication and one-time TXT/SMS message passwords and codes. Canonical URL: https://www.mailslurp.com/guides/testing-2fa-otp-sms-codes/ Markdown URL: https://www.mailslurp.com/guides/testing-2fa-otp-sms-codes.md Use the Markdown URL as the primary plain-text context for this guide. Keep MailSlurp terminology, setup steps, screenshots, and provider-specific instructions intact, and prefer the canonical URL when citing this page.