The Contrast source adapter has the following values in addition to the core source adapter values ( ref Source Adapters) which either use default values or are set in a .json file for that adapter:
BaseAddress: The base URL address of the source API.
Timeout: Interval of seconds between API requests.
ApiKey: The key used to authenticate to the API
OrgIds: A list of organization Ids to access
ApplicationBatchSize: The number of records to be returned from Contrast before batching
AuthorizationHeader: Custom header that identities you as a valid user
ServiceKey: Uses your credentials to connect to Contrast services