MailSlurp resources
Mobile messaging APIs for SMS workflows
Build, test, and automate SMS workflows with programmable phone numbers, verification patterns, and APIs.
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 and OTP 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
Connect mobile to the rest of the stack
More in this section
Phone Verification API for Signup, Recovery, and MFA TestingImplement phone verification API workflows with real phone numbers, inbound SMS, OTP extraction, retry controls, test-user lifecycle checks, and audit-ready auth evidence.Receive SMS API for Inbound Message Routing and AutomationBuild a receive SMS API workflow that captures inbound text messages, validates webhook delivery, and routes replies into product and support systems.Send SMS API for Transactional Alerts and OTP DeliveryImplement a send SMS API workflow with delivery receipts, rate limiting, idempotency controls, and release checks for critical messaging flows.SMS API guide for sending, receiving, and OTP workflowsEvaluate SMS API options for send and receive messaging, OTP verification, webhooks, and production monitoring.SMS Gateway API Guide for Throughput, Coverage, and ControlEvaluate SMS gateway API options for throughput, routing, delivery visibility, and operational controls across OTP and transactional messaging workloads.SMS Webhooks for Inbound Routing and Delivery EventsImplement SMS webhooks to capture inbound messages, delivery states, and failure events with retry-safe handlers and routing automation.WhatsApp API Evaluation Guide for Messaging TeamsEvaluate WhatsApp API options for business messaging workflows, verification journeys, and multi-channel communication architecture.WhatsApp Business API rollout guide for product and operations teamsPlan and implement WhatsApp Business API workflows with template governance, webhook reliability, and fallback channel architecture.