About Surge
SMS and voice APIs that make it easier to build, register, and launch.
Surge is an SMS and voice API platform for developers and vertical SaaS companies. It helps people and AI coding agents add texting and calling to apps. Test SMS with a demo number, then get help with 10DLC or toll-free carrier registration for production. Platforms can also embed messaging for each customer.
Built for real launches
25.2 hours
Median 10DLC campaign approval time.
49.2 hours
Median toll-free campaign approval time.
Each median covers our 100 most recent campaigns of that type, as of September 2026.
Thousands of campaigns in 2026
Plus millions of messages handled for companies of different sizes.
What Surge does
Everything you need to add communications to an app, with less time spent on the setup around them.
SMS and voice APIs
Add SMS, MMS, and voice to your application. Send one-time passcodes, build customer conversations, or add calling without building communications infrastructure yourself.
Carrier registration
Register 10DLC campaigns or verify toll-free numbers with a straightforward process. Surge helps you navigate the carrier requirements between signup and production SMS.
Embeddable messaging
Add a messaging inbox to your product with ready-to-use components. Vertical SaaS platforms can give their customers messaging tools and manage registration for each business they serve.
What makes Surge different
We built the communications platform we wanted to use: quick to adopt, straightforward to manage, and backed by a team that knows carrier registration.
01
Registration measured in hours
Across Surge's 100 most recent campaigns of each type as of September 2026, the median time to approval was 25.2 hours for 10DLC and 49.2 hours for toll-free. Carrier review times can vary.
02
Clear answers when registration needs changes
If a carrier flags an issue with your registration, we tell you exactly what needs to change. You get actionable guidance instead of an opaque rejection code to decipher on your own.
03
A simpler path from signup to sending
Try SMS with a demo number, then choose a number and complete registration when you're ready for production. Our dashboard and APIs keep each step clear.
04
Components you can embed
Ready-to-use components help teams add a messaging experience to their apps in minutes instead of building one from scratch. They are especially useful for vertical SaaS products serving many customers.
05
Built for platforms with many customers
Each business on a vertical SaaS platform may need its own carrier registration. Surge makes that recurring task easier to manage as the platform grows.
06
Support from people who know SMS
Reach our team through email or in-app chat when you need help with setup or registration. We work to resolve questions quickly, especially when carrier requirements get complicated.
Who uses Surge
From early-stage startups to public companies, our customers want communications that are easy to add and easy to run.
Developers adding SMS or voice
Teams adding one-time passcodes, customer messaging, or calling to their applications through a clear API.
AI coding agents
Agents adding SMS or voice to a codebase using Surge's Markdown docs, official SDKs, and OpenAPI specification.
Vertical SaaS platforms
Software companies that offer messaging to their own customers and need to register each business for 10DLC or toll-free SMS.
Companies navigating carrier registration
Startups and established teams that want help getting approved for production SMS.
For agent-built apps
Building with an AI coding agent?
Give it the Surge integration guide. It points to Markdown docs, official SDKs, and the OpenAPI spec so your agent can add SMS or voice to your codebase.
Open the agent integration guidePrompt to give your agent
Add SMS or voice to this app using Surge. Start at https://surge.app/llms.txt and follow the official docs and SDKs. Keep API keys server-side. For SMS, test with a demo number before setting up production registration.
The team behind Surge
Surge started with a practical problem. In early 2024, Dennis Beatty was building a CRM for small gyms and a communications tool for hearing implant specialists. Both needed messaging, and his earlier work with SMS had shown him how difficult it was to add well.
On a drive from California to Utah, Dennis had the idea for embeddable messaging for vertical SaaS. When another platform offered to pay him to build an SMS inbox, he persuaded them to become Surge’s first customer instead. With a paying customer in place, Brett Beatty left his job building VoIP systems for small businesses to join Dennis as co-founder.
The founders joined Y Combinator’s Fall 2024 batch. There, they saw a broader need: developers everywhere were struggling with SMS setup and carrier registration. They expanded Surge into a developer-focused SMS and voice platform while continuing to serve vertical SaaS companies. Today, the growing team works together in Lehi, Utah.
How Surge works
Test SMS with a demo number before registering for production traffic. Our team is available if you need help along the way.
- 01
Create an account
Sign up for Surge and explore the dashboard and APIs.
- 02
Test SMS and start building
Send a test text and start your integration before buying a number or completing carrier registration.
- 03
Prepare for production
Choose a number and complete 10DLC or toll-free registration for production SMS. Our team can help by email or in-app chat.
- 04
Launch communications
Use the APIs or embeddable components to bring SMS or voice into your app.
Key facts about Surge
The essentials about our company, products, and team in one place.
- Company name
- Surge Communications Inc
- Type
- SMS and voice API platform
- Founders
- Dennis Beatty and Brett Beatty
- Headquarters
- Lehi, Utah
- Y Combinator
- Fall 2024 batch
- Core offering
- Messaging and voice APIs, carrier registration, and embeddable messaging components
- Scale
- Thousands of campaigns handled in 2026; millions of messages overall
- Support
- Email and in-app chat
- Website
- surge.app
- Pricing
- See plans and usage pricing
- Social
- Surge on X
Frequently asked questions
How long does SMS carrier registration take with Surge?
Across our 100 most recent 10DLC campaigns, the median time to approval was 25.2 hours. Across our 100 most recent toll-free campaigns, it was 49.2 hours. These figures are as of September 2026; individual carrier reviews can vary.
Can a vertical SaaS company register its own customers?
Yes. Surge supports platforms that need to register each customer for SMS and give those businesses messaging tools inside their existing product.
Does Surge support voice as well as SMS?
Yes. Surge offers APIs for SMS, MMS, and voice, along with embeddable components for adding communications to an application.
How do I get started?
Create a Surge account and try an SMS with the demo number. When you're ready for production SMS, choose a number and complete 10DLC or toll-free registration; our team can help by email or in-app chat.
Ready to add SMS or voice to your app?
Create an account and get started with Surge. We’re here if you need help getting registered.
Get started with Surge