Send Your First SMS
POST Method
Description
SMS is a simple and cost-effective way to communicate with customers. By now, you would have configured the SMS channel in Kaleyra.io. Now, let us use this API to send your first outbound SMS.
Base URL
To send your first SMS, follow the below steps:
1. Signup or Login to Kaleyra.io and create your API key.
Refer to the Create an API Key page for steps to create your API key.
Note:
After you sign up, your account will be on the trial version. You must complete the KYC to access all the features in Kaleyra.io.
2. API command to Send Your First SMS
Request Format
To send your first SMS, use the /messages endpoints.
curl -X POST "https://api.kaleyra.io/v1/<SID>/messages" \
-H "api-key: <API_KEY>" \
-H "Content-Type: <CONTENT_TYPE>" \
-d "to=<TO_NUMBER>" \
-d "sender=<SENDER_ID>" \
-d "type=MKT" \
-d "body=Hello! This is my first SMS." \
-d "source=API" \
-d "ref=<OPTIONAL_PARAMETER>" \
-d "ref1=<OPTIONAL_PARAMETER1>" \
-d "ref2=<OPTIONAL_PARAMETER2>"
Request Format-Indian Customers
curl -X POST "https://api.kaleyra.io/v1/<SID>/messages" \
-H "api-key: <API_KEY>" \
-d "to=<TO_NUMBER>" \
-d "sender=<SENDER_ID>" \
-d "source=API" \
-d "type=MKT" \
-d "body=Hello! This is my first SMS." \
-d "template_id=<TEMPLATE_ID>"
-d "ref=<OPTIONAL_PARAMETER>" \
-d "ref1=<OPTIONAL_PARAMETER1>" \
-d "ref2=<OPTIONAL_PARAMETER2>"
Note:
Ensure to replace the parameter values with the proper inputs in the above code.
Parameters and Variables
Below is the list of parameters and variables used:
Parameter | Variable | Description | Example | Mandatory |
|---|---|---|---|---|
SID | String | Account SID (Security Identifier) | HXXXXXXX071US | Yes |
TO_NUMBER | Integer | Recipient's MSISDN | +1XXXXXXXXXX | Yes |
SENDER_ID | String | Originator/Alphanumeric ID (default KLRHXA) | KLRHXA | Yes |
API_KEY | String | API Key generated by Kaleyra.io | Ac4XXXXX21f | Yes |
TEMPLATE_ID | Integer | Unique ID of the template (Only for Indian Customers) | 2xxxxxxxxxxxx | No |
TYPE | String | Route type | OTP, TXN, MKT, DEFAULT | Yes |
OPTIONAL_PARAMETER | String/Integer | Include the contextual information in this parameter. | Customer Name | No |
OPTIONAL_PARAMETER1 | String/Integer | Include the contextual information in this parameter. | Company Name | No |
OPTIONAL_PARAMETER2 | String/Integer | Include the contextual information in this parameter. | Designation | No |
Optional Parameters
Add the required contextual information to your SMS using the Optional Parameters. You can include up to three parameters in the above SMS API call, and each can have a maximum of 50 characters.
For Example:
When you deliver a message to multiple customers, you can pass Message ID as optional parameters in the API call for further reference.
You can also include information such as:
- Campaign Name
- Client Name
- Client ID
- Product ID and so on
3. Response Format
This section provides you the success and failure JSON response format for different scenarios.
Success Response
{
"id": "ee8aXXXX-XXXX-XXXX-XXXX-9b717XXXX30d",
"sender": "KLRHXA",
"type": "DEFAULT",
"body": "Hello! This is my first SMS.",
"createdDateTime": "2019-11-04 10:42:23+00:00",
"totalCount": 1,
"data": [
{
"message_id": "ee8aXXXX-XXXX-XXXX-XXXX-9b717XXXX30d:1",
"recipient": "1XXXXXXXXXX"
}
],
"dlrurl": null,
"error": {}
}
Success Response - Indian Customers
{
"id": "ee8aXXXX-XXXX-XXXX-XXXX-9b717XXXX30d",
"sender": "KLRHXA",
"type": "DEFAULT",
"template_id": "2xxxxxxxxxxxx",
"body": "Hello! This is my first SMS.",
"createdDateTime": "2019-11-04 10:42:23+00:00",
"totalCount": 1,
"data": [
{
"message_id": "ee8aXXXX-XXXX-XXXX-XXXX-9b717XXXX30d:1",
"recipient": "1XXXXXXXXXX"
}
],
"dlrurl": null,
"error": {}
}
Failure Response
Exceeds Maximum Characters
The SMS length is exceeding 4000 characters. Keep the characters below the maximum limit and re-execute the command.
{
"code": "E401",
"message": "SMS length is exceeding 4000 characters.",
"error": {
"body": "SMS length is exceeding 4000 characters."
}
}
Note:
In case of an error, ensure that the parameter values are correct in the above code. Refer to the Understand Error Codes page for detailed information.
Sample Request
curl -X POST "https://api.kaleyra.io/v1/HXXXXXXX071US/messages" \
-H "api-key: Ac4XXXXX21f" \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "to=+1XXXXXXXXXX" \
-d "sender=KLRHXA" \
-d "body=Hello! This is my first SMS."
-d "source=API" \
-d "ref=Campaign name" \
-d "ref1=Client Name" \
-d "ref2=Product ID"
Sample Request - Indian Customers
curl -X POST "https://api.kaleyra.io/v1/HXXXXXXX071US/messages" \
-H "api-key: Ac4XXXXX21f" \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "to=+1XXXXXXXXXX" \
-d "sender=KLRHXA" \
-d "body=Hello! This is my first SMS." \
-d "source=API" \
-d "ref=Campaign name" \
-d "ref1=Client Name" \
-d "ref2=Product ID" \
-d "template_id=2xxxxxxxxxxxx"
Two-way SMS for Customer Engagement
Kaleyra's Two-Way SMS API is designed to offer you an easy and efficient way to communicate with your customers. It allows you to instantly send and receive messages through your choice of long or short-codes.
If you have purchased a two-way SMS number, you must pass the same number as a Sender ID in the above API call to initiate a two-way conversation with your customers.
Sample Request
curl --location --request POST '<host>/v1/HXXXXXXX071US/messages/' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--header 'api-key: Ac4XXXXX21f' \
--data-urlencode 'to=919620838056' \
--data-urlencode 'body=Accepting number as sender test 1' \
--data-urlencode 'sender=917406785834' \
--data-urlencode 'type=MKT' \
--data-urlencode 'source=API'
Note:
For Two-way SMS, the sender variable must be String/Numeric. For example 917XXXXXXXX4
Updated 6 months ago