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Stripe 3D Secure Test Cards

Stripe cards for 3DS / SCA flows: challenge, frictionless, required, declined.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Test authentication pop-ups, frictionless flows and post-authentication declines.

How to use it (step by step)

  1. 1Fill in the boxes: “Search (brand, country, scenario)”, “Show numbers”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

Test / sandbox mode
A practice version of a payment system. You can “pay” with test cards to try your checkout, but no real money moves.
3D Secure (3DS)
The extra step where your bank asks you to confirm a payment (an OTP or app approval). It protects against stolen cards.
Decline code
A short reason the bank gives when it refuses a payment, like “insufficient_funds” (not enough money).

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