Recognize.im is providing API for Image Recognition. Those module is sample PHP connector to the API

Just download the content of the lib/ directory and include the classes in your project or use composer:

$ composer.phar require "recognizeim/php-client" "dev-master"

Or add the following to your composer.json in the require section:

"require": {
    ... other requirements ...,
    "recognizeim/php-client": "dev-master"
}

To initialize your RecognizeIm call the init static method:

\RecognizeImAPI::init(array(
    'URL'       => $url,
    'CLIENT_ID' => $client_id,
    'API_KEY'   => $api_key,
    'CLAPI_KEY' => $clapi_key
));

You'll find a full example in the example/ directory.

You don't need to call method auth by yourself. Module object will authorize you when needed, you just need do provide valid credentials. You can get them from your account tab