The simplest SMS API available
Small Biz SMS™ is a simple SMS API connection serving small applications and calendaring alerts. It uses a real mobile number for the USA or Canada and comes with pre-written routines to make auto reply-backs and management easy.
Everything you need to add text-messaging to your business
Dedicated Longcode
Get a dedicated long code number for your business to send and receive messages with a consistent sender identity.
Outbound Messaging
Send SMS messages to any mobile number with reliable delivery and real-time status tracking through our powerful API.
Incoming Message to E-Mail
Automatically forward incoming SMS messages directly to an email address for easy monitoring and record keeping.
SSL Security
All API communications are secured with SSL encryption to protect your data and messages in transit.
Free Text Back
Let your customers reply to messages at no extra cost. Free Text Back keeps two-way conversations affordable and accessible on every plan.
Inbound Messaging
Receive incoming SMS messages and route them to your application in real-time with automatic message parsing.
Message Polling
Poll our servers on your schedule to retrieve new messages and delivery reports at your preferred intervals.
USA & Canada Texting Only
Send and receive SMS messages across the United States and Canada with reliable carrier coverage and local long code numbers.
Inbound Message to Webservice
Route incoming messages directly to your web service endpoint for seamless integration with your application logic.
Support that's built around your business
When you have a question, you'll get a real answer from a real person. Swift's support team are SMS experts — not generalists reading from a script — who understand the platform, know the technical details, and are committed to keeping your business running smoothly.
Frequently asked questions
Small Biz is a straightforward SMS plan designed for small applications and businesses that need reliable text messaging without the complexity of a full API integration. It includes a dedicated long code phone number, pre-built functions for auto-replies and account management, and flexible inbound message routing via email, web, or polling.
No. Small Biz is designed to be simple enough that you don't need deep programming knowledge to get started. The pre-built functions handle common tasks like auto-replies and message routing. However, if you want to integrate messaging into your own application, our straightforward REST API makes it easy with any programming language.
If you approach or exceed your plan's monthly message allocation, you can upgrade to a higher-tier Small Biz plan or contact our team to discuss custom options. We'll work with you to make sure your messaging isn't interrupted as your needs grow.
Yes. Small Biz plans include the option to select your dedicated long code phone number, so you can pick a number that's easy to remember or relevant to your area code. This number is exclusively yours for sending and receiving messages.
When someone texts your Small Biz number, you can route their message to an email address, a web service endpoint, or retrieve it via polling. Auto-replies let you set up automatic responses to incoming messages — for example, confirming an appointment or providing business hours — without any manual intervention.
Yes. Small Biz plans support dedicated long code numbers in both the United States and Canada. You can send and receive SMS messages to recipients in either country from your chosen number.
Yes. If your messaging needs outgrow the Small Biz plan, you can upgrade to our full SMS API with higher volumes, additional number types (toll-free, short codes), and more advanced features. Contact our team to discuss a migration path that works for your business.