HTTPUSRAGENTHDR

The HTTPUSRAGENTHDR system initialization parameter specifies the value (up to 64 characters) that CICS® sets in the user-agent header of HTTP requests.

HTTPUSRAGENTHDR={YES|NO|'value'}
Valid values are as follows:
YES
The user-agent header will be set to IBM_CICS_Transaction_Server/5.4.0(zOS) in outgoing HTTP requests.
NO
CICS will not add a user-agent header to outgoing requests.
value
When you specify a value, the user-agent header will include this value in outgoing HTTP requests.