Authentication and credential management

Authentication in API E-commerce

The API E-commerce uses API key authentication in the request header. The keys are:

• MerchantId, which is the store identifier in Cielo;
• MerchantKey, which is the key for dual authentication in Cielo.

**The MerchantId and MerchantKey keys are used in the header of all requests made to the transactional and query APIs.

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Please refer to Revoke and create credentials on the Cielo website to get your MerchantId and MerchantKey.

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Get test credentials at sandbox registration.

Authentication in other features

3DS protocol

Authentication for implementing the 3DS protocol follows the Basic Authentication standard using ClientId and ClientSecret encoded in Base64.

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Learn more about 3DS credentials at:

• Get 3DS credentials
• Create 3DS access token

Silent Order Post

Authentication for implementing the Silent Order Post protocol follows the Basic Authentication standard using ClientId and ClientSecret encoded in Base64.

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Learn more about Silent Order Post credentials at:

• Get Silent Order Post credentials
• Create Silent Order Post access token