To override the Content-type in your clients, use the HTTP Accept Header, append  the .xml suffix or  ?format=xml
        
        HTTP + XML
         The following are sample HTTP requests and responses. 
            The placeholders shown need to be replaced with actual values.
POST /api/charges/all HTTP/1.1 
Host: cpo.hostedsuite.com 
Accept: application/xml
Content-Type: application/xml
Content-Length: length
<ListAllChargesRequest xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Evo.HostedSuite.Core.ServiceModel">
  <CustomerName>String</CustomerName>
  <Password>String</Password>
  <UserName>String</UserName>
  <ClientId>String</ClientId>
  <DateSelector>DateOfCharge</DateSelector>
  <EndDate>String</EndDate>
  <IncludeManualCharges>false</IncludeManualCharges>
  <IncludeSchedulingCharges>false</IncludeSchedulingCharges>
  <StartDate>String</StartDate>
</ListAllChargesRequest>
 
HTTP/1.1 200 OK
Content-Type: application/xml
Content-Length: length
<ArrayOfChargeInfo xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Evo.HostedSuite.Core.ServiceModel">
  <ChargeInfo>
    <BillingCode>String</BillingCode>
    <ClientId>String</ClientId>
    <ClientName>String</ClientName>
    <Cost>0</Cost>
    <DateCreated>String</DateCreated>
    <DateLastModified>String</DateLastModified>
    <DateOfCharge>String</DateOfCharge>
    <Description>String</Description>
    <EntityStatus>String</EntityStatus>
    <Id>String</Id>
    <Memorized>false</Memorized>
    <Notes>String</Notes>
    <Quantity>0</Quantity>
    <Service>String</Service>
    <ServiceId>String</ServiceId>
  </ChargeInfo>
</ArrayOfChargeInfo>