Get available payment methods for project

POST /API/XML/InvoiceManagementService.ashx

Returns a list of available payment methods for the project. XML request type: <ProjectCustomerSupportRequest>.

HTTP Headers:

Callisto-Protocol-Version: 2
SignatureVersion: 3

Request parameters

Field	Type	Required	Description
`Callisto-Protocol-Version`	`2`	yes	Protocol version
`SignatureVersion`	integer (int32, default `1`)	—	Signature version number

Request body

Field	Type	Required	Description
`ProjectCustomerSupportRequest`	object	yes
`ProjectCustomerSupportRequest.ProjectID`	integer (int32)	yes	Project ID in the Platform system. Assigned during project setup.
`Header`	object	yes	Request header with authentication. Included in every API request.
`Header.Authentication`	object	yes	Request authentication data. All three fields are mandatory for every request.
`Header.Authentication.Login`	string	yes	Merchant Login assigned by the Platform
`Header.Authentication.NowUtc`	string	yes	Current UTC time in yyyyMMddHHmmss format. Must not differ from platform system time by more than 20 minutes.
`Header.Authentication.Signature`	string	yes	HMAC request signature. Calculated as: LOWERCASE(HMACSHA256(Password, Login + LOWERCASE(HMACSHA256(Password, NowUtc))))
`Header.RequestAttempt`	integer (int32)	—	Ordinal invoice request number (for idempotency). Starting from 0.
`Header.Gateway`	object	—	Platform service block in the request header. The sandbox does not read it: the block is ignored and affects neither the signature nor processing.
`Header.Gateway.Signature`	string	—
`Header.Gateway.ContractInfo`	object	—
`Header.Gateway.ContractInfo.DesiredExpirationTimeUtc`	string (date-time)	—

Request example


<?xml version="1.0" encoding="utf-8"?>
<Request>
  <Header>
    <Authentication>
      <Login>demo_login</Login>
      <NowUtc>20260921120000</NowUtc>
      <Signature>0000000000000000000000000000000000000000000000000000000000000000</Signature>
      <SignatureVersion>3</SignatureVersion>
    </Authentication>
  </Header>
  <ProjectCustomerSupportRequest>
          <ProjectID>1001</ProjectID>
          <ClientIP>127.0.0.1</ClientIP>
          <MobilePhoneCustomer>
            <MSISDN>79600000000</MSISDN>
          </MobilePhoneCustomer>
        </ProjectCustomerSupportRequest>
</Request>

Response example


<?xml version="1.0" encoding="utf-8"?>
<Response>
  <ProjectCustomerSupportResponse>
    <PaymentMethodList>
      <PaymentMethodAvailable>
        <Country>ru</Country>
        <Type>Mobile</Type>
        <Auth>SMS_PIN</Auth>
      </PaymentMethodAvailable>
      <PaymentMethodAvailable>
        <Country>ru</Country>
        <Type>Card</Type>
        <Auth>AUTH_PAGE</Auth>
      </PaymentMethodAvailable>
    </PaymentMethodList>
  </ProjectCustomerSupportResponse>
  <ResultCode>0</ResultCode>
  <ResultDescription>OK</ResultDescription>
</Response>