diff --git a/docs/en/UI/AspNetCore/JavaScript-API/Auth.md b/docs/en/UI/AspNetCore/JavaScript-API/Auth.md
new file mode 100644
index 0000000000..45af8c4b3e
--- /dev/null
+++ b/docs/en/UI/AspNetCore/JavaScript-API/Auth.md
@@ -0,0 +1,24 @@
+# ASP.NET Core MVC / Razor Pages UI: JavaScript Auth API
+
+Auth API allows you to check permissions (policies) for the current user in the client side. In this way, you can conditionally show/hide UI parts or perform your client side logic based on the current permissions.
+
+> This document only explains the JavaScript API. See the [authorization document](../../../Authorization.md) to understand the ABP authorization & permission system.
+
+## Basic Usage
+
+`abp.auth.isGranted(...)` function is used to check if a permission/policy has granted or not:
+
+````js
+if (abp.auth.isGranted('DeleteUsers')) {
+  //TODO: Delete the user
+} else {
+  alert("You don't have permission to delete a user!");
+}
+````
+
+## Other Fields & Functions
+
+* ` abp.auth.isAnyGranted(...)`: Gets one or more permission/policy names and returns `true` if at least one of them has granted.
+* `abp.auth.areAllGranted(...)`: Gets one or more permission/policy names and returns `true` if all of them of them have granted.
+* `abp.auth.policies`: This is an object where its keys are the permission/policy names. You can find all permission/policy names here.
+* `abp.auth.grantedPolicies`: This is an object where its keys are the permission/policy names. You can find the granted permission/policy names here.
\ No newline at end of file
diff --git a/docs/en/UI/AspNetCore/JavaScript-API/Index.md b/docs/en/UI/AspNetCore/JavaScript-API/Index.md
index dc87739641..38cde6217e 100644
--- a/docs/en/UI/AspNetCore/JavaScript-API/Index.md
+++ b/docs/en/UI/AspNetCore/JavaScript-API/Index.md
@@ -5,7 +5,7 @@ ABP provides a set of JavaScript APIs for ASP.NET Core MVC / Razor Pages applica
 ## APIs
 
 * [abp.ajax](Ajax.md)
-* abp.auth
+* [abp.auth](Auth.md)
 * abp.currentUser
 * abp.dom
 * [abp.event](Events.md)
diff --git a/docs/en/docs-nav.json b/docs/en/docs-nav.json
index c14349b4ac..1ef289851d 100644
--- a/docs/en/docs-nav.json
+++ b/docs/en/docs-nav.json
@@ -455,6 +455,10 @@
                   "text": "Localization",
                   "path": "UI/AspNetCore/JavaScript-API/Localization.md"
                 },
+                {
+                  "text": "Auth",
+                  "path": "UI/AspNetCore/JavaScript-API/Auth.md"
+                },
                 {
                   "text": "Settings",
                   "path": "UI/AspNetCore/JavaScript-API/Settings.md"