Authenticate your requests to the Unzer API.
After you sign your Unzer contract, you get four API keys:
- Your sandbox public key (e.g.
- Your sandbox private key (e.g.
- Your production public key (e.g.
- Your production private key (e.g.
Your API keys are configured with permissions valid for your specific account. They are tied to you as a merchant.
|Key||Infix||Sandbox key example||Production key example|
Depending on the resource and method used, you either need your public key or your private key to authenticate your request.
For details on which features require a public key or a private key, go to: Authentication reference.
HTTP basic authentication requires a username and password. In the Unzer API, the username is your API key, and the password is empty:
- Username: your API key
To provide an empty password, add a colon (
:) at the end of your key, like this:
Remember to encode your API key with a Base64 encoder:
curl https://api.unzer.com/v1/payments/charges \ -u s-priv-xxxxxxxxxx:
var heidelpay = new Heidelpay('s-priv-xxxxxxxxxx');
Heidelpay heidelpay = new Heidelpay("s-priv-xxxxxxxxxx")
// In PHP you do not need to hash the secret key because it is done for you. // You can just create the Heidelpay object and pass your private key as parameter one $heidelpay = new Heidelpay('s-priv-xxxxxxxxxx', SupportedLocale::GERMAN_GERMAN);