diff --git a/README.md b/README.md
index ce0133d..81717fd 100644
--- a/README.md
+++ b/README.md
@@ -56,3 +56,39 @@ npm install
 ```bash
 php artisan key:generate
 ```
+## 🔐 API Authentication with Laravel Passport
+Laravel Passport provides a complete OAuth2 authentication system for your Laravel APIs. Below are the steps to install and configure Passport for this Laravel 12 (Dockerized) project.
+
+### 1. Create a Password Grant Client
+```bash
+php artisan passport:client --password
+```
+### 2. Get an Access Token via API
+
+Endpoint:
+```bash
+POST http://<url_local>:<port>/oauth/token
+```
+Headers:
+```bash 
+Accept: application/json
+Content-Type: application/x-www-form-urlencoded
+```
+Body:
+```bash 
+grant_type=password
+client_id=YOUR_CLIENT_ID
+client_secret=YOUR_CLIENT_SECRET
+username=test@example.com
+password=secret123
+scope=
+```
+✅ Successful Response
+
+```json
+{
+  "token_type": "Bearer",
+  "access_token": "eyJ0eXAiOiJKV1QiLCJhbGci...",
+  "expires_in": 3600
+}
+```