Creating and Using Security Keys User Guide {#reference.dita_a3d5a5d5-8523-48e8-80d6-82dd712058cb}
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This section describes how to use this user guide and where to find further information.

Audience and Purpose
:
This guide is written for application developers who want to use `Visa Acceptance Solutions` services that require a security key, including API requests.

Customer Support
:
For support information about any service, visit the Support Center:

[http://developer.visaacceptance.com/support/contact-us.html](https://developer.visaacceptance.com/support/contact-us.md "")