This is the official API documentation for ClickSend.com

Below you will find a current list of the available methods for clicksend.

NOTE: You will need to create a free account to use the API.

You can Register Here.

API URL

The API should always be accessed over SSL.

Base URL: https://rest.clicksend.com/v3/

Authentication

Basic HTTP authentication should be used in the header.

Either:

username: Your API username

password: Your API key

You can get your API credentials by clicking 'API Credentials' on the top right of the dashboard.

OR

username: Your account username

password: Your account password

These are the same credentials that you use to login to the dashboard.

Authorization Header

The Authorization header is constructed as follows:

1. Username and password are combined into a string username:password
2. The resulting string is then encoded using Base64 encoding
3. The authorization method and a space i.e. “Basic " is then put before the encoded string.

For example, if the user uses Aladdin as the username and open sesame as the password then the header is formed as follows:

Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==

PHP Authentication Header Example (using cURL)

curl_setopt($ch, CURLOPT_HTTPHEADER, ['Authorization: Basic ' . base64_encode("$username:$password")]);

Verbs

The API uses restful verbs.

Status Codes

The API will respond with one of the following HTTP status codes.

Application Status Codes

The following status codes can be returned in addition to the HTTP status code. For example, when using the Send SMS endpoint:

Required Headers

You’ll need to send some headers when making API calls.

Pagination

Some methods are paginated. By default, 1 page of 15 items will be returned. You can set the pagination parameters by adding ?page={page}&limit={limit} to the URL.

Request

Response

Searching and Sorting

Most GET endpoints allow searching and sorting. Searches are not case-sensitive.

Search

To perform a search, add q as a query parameter. For example:

/subaccounts?q=field:value,field2:value

Order

To perform a sort, add order_by as a query parameter. For example:

/subaccounts?order_by=field:desc/asc

AND / OR

By default, it will search using the AND operator. This can be set using operator as a query parameter. For example:

/subaccounts?q=field:value&operator=OR

Options:

• AN - returns results matching all query fields specified

• OR - returns results matching any query fields specified

Example

/subaccounts?q=first_name:john,last_name:smith&order_by=subaccount_id:asc&operator=AND

CORS

When creating your API app, specify the JavaScript (CORS) origins you’ll be using. We use these origins to return the headers needed for CORS.

Date and Time

All date/timestamps will be returned in Unix time (also known as POSIX time or erroneously as Epoch time) with no leap seconds.

For example: 1435255816

(ISO 8601: 2015-06-25T18:10:16Z)

More information: Wikipedia: Unix time.

There is ony one Unix time and it is created by using the UTC/GMT time zone. This means you might have convert time zones to calculate timestamps. Most programming language have libraries to help you converting time zones.

The current Unix time can be found here: Epoch Converter

Testing

Test Credentials

These API credentials can be used to test specific scenarios.

Note: you will need to create a free account to test other scenarios. Refer to introduction.

Test SMS/MMS Numbers

The following numbers can be used when testing. No messages will be sent, and your account won’t be charged. A success response will be returned.

• +61411111111

• +61422222222

• +61433333333

• +61444444444

• +14055555555

• +14055555666

• +447777777777

• +8615555555555

Test Voice Numbers

The following numbers can be used when testing. No messages will be sent, and your account won’t be charged. A success response will be returned.

• +61411111111

• +61422222222

• +61433333333

• +61444444444

• +14055555555

• +14055555666

• +447777777777

• +8615555555555

Test Fax Numbers

The following numbers can be used when testing. No messages will be sent, and your account won’t be charged. A success response will be returned.

• +61261111111

• +61262222222

• +61263333333

Test Email Addresses

The following email addresses can be used when testing. No messages will be sent, and your account won’t be charged. A success response will be returned.

• test1@test.com

• test2@test.com

• test3@test.com

Test Post Letter Addresses

The following Postal Codes (address_postal_code) can be used when testing. No messages will be sent when using these post codes, and your account won’t be charged. A success response will be returned.

• 11111

• 22222

• 33333

Use this page to mock ClickSend REST API v3 in your testing and development.

Run our mock API sample using the open source WireMock library, or in the free edition of WireMock Cloud. You'll have a working API server simulating the behavior of ClickSend REST API v3, which will allow you to keep building and testing even if the actual API you isn't currently available.