SMS for developers
Test SMS locally for free, deploy to production in minutes
$ npm install -g @relay-works/sms-devBuilt for developers
Everything you need to ship SMS features that drive engagement
API-First Design
Simple REST API that takes 5 minutes to integrate. Send your first SMS with a single curl command.
10DLC Compliance
Automated carrier compliance handling. We manage brand registration so you can focus on building.
Sub-100ms Response
Enterprise-grade infrastructure built for speed. Your messages deliver fast, every time.
Global Reach
Send SMS to 190+ countries with reliable delivery rates and transparent pricing.
RELAY vs TWILIO
Time to first SMS
2 hours (account setup, phone numbers, A2P registration)
5 minutes (one API call)
10DLC Compliance
Manual forms, weeks of approval, confusing dashboard
Automatic, included in every account
Pricing transparency
Hidden fees, per-phone-number charges, unclear 10DLC costs
Flat rate, all fees included, transparent overage price
Documentation
400-page docs you need to read
Copy/paste code examples that just work
Simple, transparent pricing
Starting with 1,500 messages included
$0.025 per additional message
vs Twilio's $0.055
Built by a founder who got tired of Twilio's complexity
Ready to ship SMS features?
Test SMS locally for free, deploy to production in minutes