Braintree Test CVV: How Sandbox CVV Values Work
Learn what a Braintree test CVV is, which digits to enter with sandbox test cards, and how to force a CVV failure for testing.
stripe test card
A Stripe test card is a documented card number that only works in Stripe's test mode, letting you run charges, declines and 3D Secure flows without ever touching a real bank account. Because these numbers are fictional and published for everyone, you can rehearse an entire checkout — success, failure, refund, dispute — in a matter of minutes. This guide covers the numbers you need, how they behave, and where the limits are.
Key Features
- Official test numbers covering Visa, Mastercard, American Express, Discover, JCB, Diners Club and UnionPay
- Dedicated values for common outcomes: successful charge, generic decline, insufficient funds, expired card and incorrect CVC
- 3D Secure and Strong Customer Authentication scenarios, including authentication-required and authentication-failed flows
- Luhn-valid numbers that satisfy client-side validation but never reach a real card network
- Compatible with Checkout, Payment Elements, Payment Intents, Invoicing, Terminal and the Stripe CLI
- Same format rules as live cards, so your validation, error messaging and retry logic get tested honestly
- Reusable indefinitely — no issuing bank, no daily limits and no expiry pressure
- Safe to paste into documentation, CI pipelines and demo recordings
Numbers, Formats and Specs
Every test card uses the standard 16-digit layout, so anything that parses a real card will parse these too. The well-known success number is 4242 4242 4242 4242; 4000 0000 0000 0002 returns a generic decline, 4000 0000 0000 9995 returns insufficient funds, and 4000 0000 0000 3220 triggers a 3D Secure challenge. Supply any future expiry date, any three-digit CVC and a postal code such as 00000. Decline responses arrive with codes like card_declined or insufficient_funds, which is exactly what your error handling should read. Note that these numbers are deliberately issued to nobody, so they cannot process real money — and real card data, including CVV values, must never be stored or passed around outside a compliant processor.
Delivery, Access and Returns
This is a digital reference, so there is nothing to ship and no waiting on a courier — access is immediate and the tables are updated whenever Stripe revises its sandbox. If a number stops behaving as described, report it and the entry is corrected or refunded at no cost.
What is a Stripe test card?
It is a fake card number published by Stripe for use in test mode. It behaves like a real card inside your sandbox but is rejected everywhere else.
Do Stripe test cards work in live mode?
No. They only function with test API keys, and attempts to use them against a live account fail immediately.
Is it legal to use Stripe test card numbers?
Yes — they are public, non-issued values intended for software testing. Buying, selling or storing real card credentials is a separate matter and is illegal.