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The ESA API is a REST-like web service that can be used to easily add 2FA to existing applications.

In most web-based applications users are authenticated before being granted access to protected resources. By asking for an additional authentication factor during the logon process, such applications can be made more resilient to attack.

The full API documentation for developers is available on the same URL address as ESA Web Console, but followed by "/apidoc" without quotation marks. For example, if the ESA Web Console is available at, the API documentation is available at

What is new in API for ESET Secure Authentication 2.8 and later

Managing ESET Secure Authentication settings

Managing users

More authentication options: MRK, whitelisting, Push Authentication


Support of user realms: users from another domain, non-domain users