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 TestingTest phone verification with an API-controlled number. Receive the SMS code, verify the account, and check number changes, retries, expiry, and recovery.Receive inbound SMS with webhooksConnect a MailSlurp number to an SMS webhook, verify callbacks, save incoming work before acknowledging it, and process replies without duplicate actions.Receive SMS API for Inbound Messages, OTPs, and WebhooksReceive SMS online or in code with MailSlurp phone numbers. Compare polling, wait APIs, and webhooks for OTP tests, replies, and inbound automation.Send SMS API with Real Phone Numbers and Consent ControlsSend SMS from a MailSlurp phone number, test replies and OTP journeys, and keep outbound messaging safe with recipient consent and received-message evidence.SMS API for Real Phone Numbers, OTP Tests, and Inbound MessagesUse MailSlurp SMS APIs to provision phone numbers, receive and send texts, wait for OTP codes, and route inbound messages with webhooks.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.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.