Messaging API

A complete Messaging API, Built for big things

Send Notifications and Messages globally with Releans’ powerful APIs and software solutions

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Pick the integration that’s right for you

SMS Messaging API

Deliver SMS alerts, notifications, and reminders with the Programmable Messaging API.

Conversations API

Deliver messages to your end users, no matter where they are, with global senders and redundant infrastructure.


Code in the language you know to programmatically send messages to millions. Start sending messages within seconds through an intuitive SMS API.

import http.client
import mimetypes
conn = http.client.HTTPSConnection("")
payload = 'sender=SenderName&mobile=+14155550101&content=Hello'
headers = {
  'Authorization': 'Bearer Your_API_Key'
conn.request("POST", "/v2/message", payload, headers)
res = conn.getresponse()
data =

Start in seconds with SMS API

Dig into our API reference documentation. You're covered with everything from SDKs in your favorite languages to sample apps for web, and mobile applications.

sms api

Integration with PHP, Java, NodeJS, Python, and more

Releans makes sending SMS easy. Find the documentation, sample code, and developer tools you need to build exactly what you want, fast. We’ll handle the complexity of mobile carrier and global regulations. Let’s get building.

Find out more
Integration with PHP, Java, NodeJS, Python, and more

200 ms

SMS API Response

Copy & Paste

Developer Docs

+8 Programming

Supported Languages

30 seconds

To start using SMS API

Messaging API International
Releans API
Global scale

The backbone for communications

For ambitious companies around the world, with Releans core services and solutions you can create powerful tools.






API per month

99.99 %


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SMS Pricing
Always know what you pay

Integrated per message pricing with no hidden fees.

Releans API
Start your integration

Get up and running with Releans API in as little as 30 seconds.