MailSlurp helps teams build and validate SMS workflows end-to-end: provision phone numbers, send and receive messages, and test OTP and verification flows in CI.
Start here
- SMS API guide
- Send SMS API
- Receive SMS API
- SMS gateway API
- SMS webhooks
- SMS verification API
- Phone verification API
- WhatsApp API evaluation
- WhatsApp Business API rollout
- Phone number SMS service
- OTP test with Playwright
- Twilio pricing comparison
- Twilio alternative
What teams build
- SMS OTP and MFA verification
- Product messaging and alerts
- Inbound routing into webhooks and systems
- Testable auth flows for sign-up and login