**Last updated**: 11 September 2025 | [**Change log**](/products/card-verifications/changelog/)

# Verifications API

Verify your customer's account to maximize your authentication rates.

With our verifications API you are able to perform an [intelligent verification](/products/card-verifications/v4/verifications#intelligent-verification), a [dynamic verification](/products/card-verifications/v4/verifications#dynamic-verification) and query [previous verifications](/products/card-verifications/v4/verifications#query-verification).

When you want to verify your customer's account before taking a payment, you must submit a verifications request to our Verifications API. For more information, see [verifying an account](/products/card-verifications/v4/verifications#verifying-an-account).

If we need to charge your customer, our API applies a nominal authorization. The nominal authorization is then cancelled before your customer is charged.

**Next steps**

[Get started](/products/card-verifications/v4/get-started)