The Sakari RESTful SMS API makes it easy to quickly send personalized SMS messages to thousands of contacts in seconds.

rich text message


Getting Started with the Sakari SMS Gateway

Integrate quickly and easily with our bulk messaging RESTful messaging gateway that is built to the latest OpenAPI 3.0 standards.

Getting started with the Sakari SMS API is easy. Using our API quick start guide, you’ll be sending your first text message in just five minutes.

With a single call, you can send customized messages to thousands of contacts. Endpoints exist to manage contacts, templates, campaigns and more. Use the API to integrate your own backend systems with ease. With our web hooks, you will receive real-time notifications when messages have been sent or you receive a response.

SMS API Features

Our API is packed with powerful, yet simple tools to maximize you integration.

Flexible & Free

Your account is free forever, only pay for the messages you send.

Cloud Storage

All of your data is hosted safely and securely in using cloud hosting data centers.


99.99% uptime. Redundant data centers and network connections.


Quick & Easy

Get started quickly. Start sending text messages in less than 5 minutes.


Quick processing of messages to ensure your SMS are sent in an instant.

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Encrypted and protected to the latest security standards.

Frequently asked questions

What will I need to get started using the SMS API gateway?

We recommend you read our API quickstart guide, but the basics are:

  • A Sakari account. You can sign up for free here:
  • A tool to make API calls such as curl or Postman
  • A mobile device that’s capable of receiving SMS messages

What type of API is it?

The Sakari SMS API is a RESTful API using JSON for requests and responses and protected by OAuth V2. OAuth V2 is an industry standard for authenticating when using API’s. Sakari provides you with a client id and secret which can be exchanged for a JWT which can then be used to call our APIs.

What does it cost to send a message?

The price varies based on your subscription plan and the country you’re sending the message to. Messages to the United States, Canada and Mexico start at 5.0 cents per message. Check out our pricing plans or download our pricing table by country.

How quickly can I start sending messages?

Within minutes. With the Sakari SMS API we’ve made it simple to get started. With a single API call you can send messages to an unlimited number of contacts.

Can I send linked Rich Text Messages with the API?

Yes. The API has been configured to send the personalized Rich Text Messages.

Where is the SMS API documentation?

You can find the API documentation here: API Documentation

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