This library handles responses and request for Adobe's Echosign REST API v3. Please take a look at their documentation for more explanation on what their service provides. https://secure.echosign.com/public/docs/restapi/v3

PHP 5.4, php ext-filter. You will need to have an oAuth token generated by Adobe to interact with their service. You can sign up online at https://www.echosign.adobe.com/en/home.html

In the require key of composer.json file add the following

"nsbucky/echosignv3": "dev-master"

All endpoints are available. Each endpoint needs an oAuth token and transport to function. A default transport provided by GuzzleHttp comes standard.

use Echosign\Transports\GuzzleTransport;
use Echosign\BaseUris;

$transport   = new GuzzleTransport();
$baseUris    = new BaseUris( 'YOUR oAUTH TOKEN', $transport );
$baseUriInfo = $baseUris->getBaseUris();

echo $baseUriInfo->getApiAccessPoint(); // https://api.echosign.com

Some of the more complex request are a pain to build, so try using one of the Creators instead. This one for example will create a transient document from a local file, then create a signing request for the specified email.

use Echosign\Creators\Agreement;

$agreementCreator = new Agreement( 'YOUR oAUTH TOKEN' );
$agreementId = $agreementCreator->createTransientAgreement(  $signerEmail, $message, $filepath, $agreementName  );