diff --git a/API-Documentation.md b/API-Documentation.md
index f2da659..3f34708 100644
--- a/API-Documentation.md
+++ b/API-Documentation.md
@@ -1,3 +1,5 @@
+# API Docs
+
 These pages document the backend API and useage.
 
 The API functions work via `GET` and `POST` requests, which both return json info about what happened.
@@ -8,4 +10,77 @@ The API will return json with the following values:
 
 `status`: which indicates if the action succeeded or not, and is either `ok` or `fail`.
 
-`reason`: which provides more info about why an action succeeded or failed, which is mostly useful for debugging.
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+`reason`: which provides more info about why an action succeeded or failed, which is mostly useful for debugging.
+
+## Auth API Documentation
+### Register & Login:
+
+`POST /api/register` with JSON body values of: `name`, `pin`, `pronouns`.
+
+Will return JSON with `status` and `reason`.
+
+`POST /api/login` with JSON body values of: `name`, `pin`.
+
+Will return JSON with `status` and `reason`.
+
+Will set a private cookie named `token` which is used for authentication.
+
+### Change User Information
+
+User information such as name, pin, and pronouns, can be changed currently one at a time.
+
+`POST /api/change` with JSON body values of: `name`, `changed_event`, `new_event`.
+
+`name` the user's current username. used for authentication.
+
+`changed_event` which event to change. value can be one of: `Name`, `Pin`, `Pronouns`.
+
+`new_event` the new value for the changed event.
+
+User is authenticated via token.
+
+### Check if User is Still Logged in
+
+Instead of having to save the pin and re-login every time to check wether they're logged in, you can just check via the token.
+
+`GET /api/token/<name>` where `<name>` is the current username.
+
+Will return JSON with `status` and `reason`.
+
+### Logout
+
+This API will remove the cookie from the client, as well as invalidating the token serverside.
+
+`POST /api/logout` with JSON body values of: `name`.
+
+Will use the current token as authentication.
+
+Will return JSON with `status` and `reason`.
+
+### Get Info About A User
+
+This API will return info about a user on success.
+
+`GET /api/users/<name>`
+
+On success returns JSON in format:
+```
+status: ok
+user:
+	name: user's name
+	pronouns: user's pronouns
+	role: the users role, one of either 'Normal', 'Moderator', or 'Admin'
+```
+
+eg:
+
+```
+{
+    status: "ok",
+    user: {
+        name: "example",
+        pronouns: "they/them",
+        role: "Normal",
+    },
+}
+```
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