Parameter	Type	Description
accessId*	String	Unique identifier that ensures that the integrator has the authorization to make requests on behalf of the customer. (Specifically, a customer's merchant account)

Parameter	Type	Description
token*	Object/Hash	Object containing authentication parameters - most crucially the requestId which is required with every call. For more information, see the Token Object.
invoices*	Array of Objects	List of invoice objects to be generated as line items on the payment page.
payerOrPaymentMethodId	String	If a payer ID is provided, will surface all payment methods under that payer as options for payment. If a payment method ID is provided, will surface just that payment method on the payment page.
nameOnAccount	String	Prepopulates the cardholder name/name on account field on the page.
billingAddress	Object/Hash	Object containing billing address fields that will be prepopulated on the resulting payment page. See the billing address object for more details.
pageOptions	Object/Hash	Object containing various page customization options. See the page options object for more details.
emailOptions	Object/Hash	Object containing various options for emailing a payment receipt. See the email options object for more details.
responseOptions	Object/Hash	Object containing various options posting of data back to you, the ClientPay Integrator, once a payment has been completed. See the response options object for more details.