# Environments and authentication

Test Live
Authorizations https://merchant.intergiro.com https://merchant.intergiro.com
API credentials Test API key pair (public and private) is issued for your test merchant. Live API key pair (public and private) is issued for your Live merchant.

Public and private key each have their specific use, as indicated here:

For Acquiring integrations For Payment Gateway integrations
Public API-key

(Safe to use in customers browser)
Create new authorizations or get details of authorizations Create new orders, new customers and new card tokens
Private API-key

(Only use on trusted systems)
Capture, cancel or refund authorizations List orders and charge, cancel and refund orders
Customer API-key Not applicable Unique to a each customer (cardholder) of a merchant. Enables customers to update their address, payment methods or view their orders

Responses are by default returned in snake case. Add accept header application/json+camelcase to receive the response in camel case.