What is API?
Application Programming Interface (API) is a set of requirements that govern how one application can talk to another, and allows other programs to interact ...
Fri, 14 Sep, 2018 at 3:43 PM
Where can I find Kaleyra API documentation?
You can find our API documentation on our developers page at
Mon, 3 Sep, 2018 at 1:04 PM
What type of APIs does Kaleyra support?
Our API are built on POST method and REST standard. You can code in your own language with our API.  Visit to view our A...
Wed, 19 Sep, 2018 at 3:20 PM
Which is the latest stable API version Kaleyra supports?
For Messaging APIs: V4 is the latest version For Voice APIs: V1 is the latest version Visit for our API Documentation
Mon, 3 Sep, 2018 at 12:53 PM
What is an API call? Why it is made?
Whenever a developer requests information from an API, they need to call or create a request to an API. Many open APIs have some strict limitations on how m...
Mon, 3 Sep, 2018 at 12:54 PM
What is API and Callback URL?
A callback URL "calls back" a web address rather than a bit of code and it can be invoked by an API method. That URL can be anything. It doesn...
Fri, 14 Sep, 2018 at 3:44 PM
What are HTTP methods? Which method supports XML, JAVA, JSON formats etc?
Two commonly used methods for HTTP request-response between a client and server are: GET and POST. GET - Requests data from a specified resource POST - S...
Mon, 3 Sep, 2018 at 12:57 PM
What is Trigger and Delivery URL?
Delivery URL (DLRURL) is basically the URL where you can get the delivery reports if requested through an API. To request such delivery reports, you need t...
Mon, 3 Sep, 2018 at 12:58 PM
Is there any API rather than SMS and Voice telephony services?
Yes, we also have the API documentation for the following products: Virtual Mobile Number (VMN) Outbound calls (OBD) Two Factor Authentication (2FA)
Mon, 3 Sep, 2018 at 12:56 PM
Where can I learn about SMPP? How can I use it?
You can learn about SMPP from our developers page. Visit to know more.
Mon, 3 Sep, 2018 at 1:03 PM