Search translations

$1 P

Show preview on the first edit

<h4>What is CVV?</h4>
<p>Cardholder Verification Value (CVV): These three or four digit numbers help ensure that the physical card is in the cardholder’s possession. This helps to prevent unauthorised or fraudulent use.</p>
<h4>Visa, Mastercard</h4>
<p>The 3-digit code is located on the back of your card, inside the signature area.
Typically the signature panel will have a series of numbers, but only the last three digits make up the CVV code.</p>
<h4>American Express</h4>
<p>The code is <i>always</i> located <i>above</i> the embossed (raised) account number on the face of the card.
In some instances, the code is located on the left side of the card, but is always above the account number.</p><br />

<div class="hlist plainlinks api-main-links">
* [[mw:Special:MyLanguage/API:Main_page|Documentation]]
* [[mw:Special:MyLanguage/API:Etiquette|Etiquette & usage guidelines]]
* [[mw:Special:MyLanguage/API:FAQ|FAQ]]
* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-api Mailing list]
* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce API Announcements]
* [https://phabricator.wikimedia.org/maniphest/query/GebfyV4uCaLd/#R Bugs & requests]
</div>
<strong>Status:</strong> The MediaWiki API is a mature and stable interface that is actively supported and improved. While we try to avoid it, we may occasionally need to make breaking changes; subscribe to [https://lists.wikimedia.org/pipermail/mediawiki-api-announce/ the mediawiki-api-announce mailing list] for notice of updates.

<strong>Erroneous requests:</strong> When erroneous requests are sent to the API, an HTTP header will be sent with the key "MediaWiki-API-Error" and then both the value of the header and the error code sent back will be set to the same value. For more information see [[mw:Special:MyLanguage/API:Errors_and_warnings|API: Errors and warnings]].

<p class="mw-apisandbox-link"><strong>Testing:</strong> For ease of testing API requests, see [[Special:ApiSandbox]].</p>