Communication APIs
Add powerful communications capabilities to your app from the only API platform with a tier-1 carrier network.

Carrier-direct voice + the most robust messaging API offering on the market
Build apps that send messages, make calls, and even save lives, without any clunky telecom infrastructure—all built on and powered by the tier-1 carrier network.
Voice API
Embed flexible, scalable voice calling into your application with more accurate, 6-second billing, all backed by our global network.
Messaging API
SVB messaging APIs let you build SMS, MMS, and Toll-Free Texting into products and applications.
Emergency Calling API
Embed more accurate public safety access directly into your app or software with our Emergency Calling API.
WebRTC Calling API
Add in-browser calling without the need for clunky infrastructure, helping you connect easier.
Authentication API
Multi-factor authentication that’s simple, secure, and ultra-customizable.
Communication APIs that deliver
real business value

Get in front of SMS blocking and call quality
Get access to powerful insights and take action against quality-impacting issues with our carrier-exclusive connections.

Direct-to-carrier pricing
You shouldn’t have to sacrifice scale on your API provider’s behalf thanks to phone number fees. By working with SVB, you’re working with the API platform AND the carrier.

Real human support is always included
You won’t have to pay extra to talk to a human if you need help—even if it’s in the middle of the night, during a hurricane, or on Christmas Eve.

Unparalleled flexibility
Every single function of the SVB platform, from ordering a phone number to making an emergency call, can be integrated into your application or software via API.
★★★★★
No other provider offered the same level of hands-on support or cost savings that SVB has been able to deliver. Their flexible APIs made it simple for us to get up and running without missing a beat.
PHILLIP KIMMEY, CO-FOUNDER AND DIRECTOR OF SOFTWARE DEV
Common Use Cases
- Text alerts and notifications
- Click-to-call
- SMS surveys
- SMS marketing
- Call tracking
- IVR system