Orice plata prin sms se initiaza printr-un POST catre https://secure.mobilpay.ro. Acest POST va contine intotdeauna doi parametri, data si  env_key

– data – un parametru ce contine date criptate pe care va trebui sa le trimiti cand initiezi o plata. Datele vor fi mereu semnate cu un certificat public X509 pe care il primesti de la mobilPay atunci cand creezi un cont de comerciant.

– env_key – este plicul asociat cu cheia publica generat in momentul impachetarii datelor.

Parametrul data este compus dintr-o lista de informatii necesare mobilPay pentru procesarea platii, in format XML. Structura XML este urmatoarea:

<!--?xml version="1.0" encoding="utf-8" ?-->

	<!-- signature element is mandatory -->
	XXXX-XXXX-XXXX-XXXX-XXXX

		http://www.site_propriu.com/confirm
		http://www.site_propriu.com/return

	<!--   	invoice element is mandatory ;  		currency attribute is mandatory (check for available values - at this moment only RON is available) 		ammount attribute is mandatory for order->type="card" if no invoice items are specified
	-->

		<!--  			details element is optional - it describes the payment to be made 		-->

</pre>
<p style="text-align: justify;">
<p style="text-align: justify;"><!--  			address block is optional 			for order->type="card" mobilpay.ro will ask the user for address informations not supplied by the merchant 
		--> &lt;contact_info&gt; <!-- 
				if billing is suplied type attribute is mandatory
				if type="company" deliver company name in <first_name>, fiscal numer in <fiscal_number> and registration number in <identity_number>
				if type="person" deliver personal number in <fiscal_number> and identity card number in <identity_number>
				for order->type="card" mobilpay.ro will ask the user for address informations not supplied by the merchant 
			--> &lt;first_name&gt;Prenume &lt;last_name&gt;Nume &lt;fiscal_number&gt;cnp|cui &lt;identity_number&gt;ci|reg <!-- country - ISO code --> &lt;zip_code&gt;</p>
<address> </address>
<p style="text-align: justify;">&lt;mobile_phone&gt;</p>
<p style="text-align: justify;"><!--  			if shipping data is same as billing data set sameasbilling attribute to 1  			if shipping data differs from billing data do set sameasbilling attribute at all 			values delivery has to be done in the same manner as for billing element 			--> &lt;first_name&gt;Prenume &lt;last_name&gt;Nume &lt;fiscal_number&gt;cnp|cui &lt;identity_number&gt;ci|reg <!-- country - ISO code --> &lt;zip_code&gt;</p>
<address> </address>
<p style="text-align: justify;">&lt;mobile_phone&gt;</p>
<pre>	<!-- 		params group is optional 		deliver as many parameters as you want 		all delivered parameters will be returned to you in payment confirmation process  	-->param1Nameparam1Value
			param2Name
			param2Value

		<!-- ....... -->
			paramnName
			paramnValue