Stripe Test Card Guide: What to Know Before You Pay

Our Cards

Choose from any of our gift cards to give to your loved ones

giftcardimage

Where to Use?

Redeem your gift cards at any of our Merchants

Where to Buy?

You can purchase a gift card from any of these locations

ABOUT US

about

What is ONYX GiftCards?

Onyx Gift Cards is a Grenadian company designed to introduce, market and manage gift cards systems in Grenada for retailers and corporations. We are enthusiastic about the effect and influence we will have on the local market. We intend to expand our systems regionally with a range of product offerings and services.

What is a Gift Card?

Gift cards are the preferred way of giving and receiving gifts. They carry a monetary value that can be redeemed for gifts at your favorite store.
Onyx GiftCards are “Open Gift Cards” which means that they can be redeemed at multiple merchant locations. They are standard credit card size, can fit into the average wallet and made of PVC plastic. Onyx GiftCards are Barcoded for security and safety for the consumer and bear a disclaimer at the back.
Onyx Giftcards can be bought with a branded Card backer which is black in colour and is designed to fit the card. There is an area to write a brief message to the recipient as well.

How it Works?

  • Buy an Onyx Gift Card at these local stores
  • Give your gift card to friends, family, co-workers, etc.
  • The recipient can shop at our select merchants nationwide
  • Your friends, family, co-workers, etc. will present their gift card at checkout to pay for your item(s)
  • They will walk away happy with the best gift ever...the gift of Choice

Why ONYX GiftCards?

  • Save TIME. No need to run around looking for the perfect gift
  • Redeem from a variety of business island-wide. We will continue adding businesses as fast as ONYX grows.
  • ONYX Gift Cards do not expire
  • Cards are valued at convinient amounts to meet every need and occasion

Start Here: You Probably Do Not Need to Buy a Stripe Test Card

Stripe publishes its test card numbers, expiry values, CVC values and decline codes in public documentation, and any account in test mode accepts them at no cost. That means the buying decision is narrow. If a vendor is selling a list of test card numbers, you are paying for a copy of free data. If a vendor is selling test automation that runs your checkout against hundreds of these numbers and reports failures, that can be worth money once you have a defined test matrix for your own product. Decide the matrix first. Buy tooling second. Skip the list.

One point matters more than the rest: Stripe test cards work only in test mode. They will not authorize in live mode, they are not issued to anyone, and they carry no funds. Any offer that implies a test card number can do something outside a test environment is describing something other than Stripe test cards.

What Test Cards Actually Are

A Stripe test card is a card number in the reserved test ranges that Stripe routes through its sandbox instead of a real card network. Each number triggers a canned response: a successful charge, a specific decline, a 3D Secure challenge, a processing error. Developers use them to check that their integration handles success and failure paths without moving real money.

The commonly used numbers follow the brand prefixes you already know, which is why they look like ordinary consumer cards:

Behavior variants are just as important as the happy path. Stripe maintains numbers that produce a generic decline, an insufficient funds decline, a lost card, a stolen card, an incorrect CVC, an expired card, a processing error, and a 3D Secure 2 authentication prompt. Build your test plan around those outcomes rather than around a single green check.

What to Look For If You Do Evaluate Paid Tooling

  1. Coverage of outcome types, not card counts. A tool that runs 500 cards but only produces two outcomes is less useful than one that runs 40 cards spanning declines, authentication and retries.
  2. Webhook verification. Many integration failures live in asynchronous events, not in the initial charge response. Test tooling should confirm event delivery and idempotency handling.
  3. Separate test keys. Any tool should operate with test-mode API keys only and should refuse to run when a live key is detected.
  4. Data handling policy. Ask where test payloads and logs are stored, how long they persist, and who can read them.
  5. Version currency. Stripe changes API versions. Tooling that has not been updated against recent API versions will produce false passes.

Parameter Bands That Matter in Test Mode

Pitfalls

FAQ

Do Stripe test cards work in live mode?

No. They are rejected outside test mode by design. If a test number appears to work in live mode, something is wrong with your configuration.

Do I have to pay for test card numbers?

No. Stripe publishes them free, along with decline codes and authentication test cases.

Can I use a real card number in test mode?

Do not. Test mode does not need it, and handling real card data in a development system expands your compliance obligations for no benefit.

What expiry and CVC should I use?

Any future expiry date and any three-digit CVC, or four digits for American Express.

How many test cards should a checkout suite cover?

Enough to hit each outcome your code branches on: success, soft decline, hard decline, authentication required, authentication failed, and processing error. Usually a dozen or fewer.

Contact Us

Latest

Read our complete guide: Should You Buy CVV From a Card Shop? The Honest Buyer's Guide