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Use the credentials and test card numbers below to simulate payments in the sandbox environment. These only work in sandbox — use the Sandbox Dashboard and sandbox API keys. See the Sandbox Environment guide for setup details.

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Card

Use these test cards to simulate successful and failed card payments in sandbox checkout.

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Success

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Failure

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Card Installments

Use this test card to simulate a successful Card Installments payment in sandbox.

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Klarna

Use these credentials when prompted during Klarna checkout in sandbox. For more on Klarna integration and requirements, see Klarna FAQs.

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PayPal

Use these credentials to test PayPal payments in sandbox.
These are sandbox-only credentials. Never use them in production or share them outside your testing workflow.