LimePay API requires authorisation through API Credentials in order to consume it.
Once you have your credentials you need to use them in the
Basic Authorization header.
$ curl -X GET -i -H "Authorization: Basic YXBpdXNlcjphcGlwd2Q=" https://sandbox-api.limepay.io/v1/ping
YXBpdXNlcjphcGlwd2Q is the base 64 encoded string with your credentials