diff --git a/openapi/features/auth/components/login-request-body.yaml b/openapi/features/auth/components/login-request-body.yaml
new file mode 100644
index 0000000..f566dbe
--- /dev/null
+++ b/openapi/features/auth/components/login-request-body.yaml
@@ -0,0 +1,17 @@
+required: true
+content:
+  application/json:
+    schema:
+      type: object
+      properties:
+        username:
+          type: string
+          description: The username for login
+          example: 'johndoe123'
+        password:
+          type: string
+          description: The password for login
+          example: '001@Mypassword'
+      required:
+        - username
+        - password
diff --git a/openapi/features/auth/components/login-response-body.yaml b/openapi/features/auth/components/login-response-body.yaml
new file mode 100644
index 0000000..7f7eea5
--- /dev/null
+++ b/openapi/features/auth/components/login-response-body.yaml
@@ -0,0 +1,18 @@
+description: User successfully authenticated
+content:
+  application/json:
+    schema:
+      type: object
+      properties:
+        token:
+          type: string
+          description: User Access Token
+          example: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c'
+        issuedAt:
+          type: string
+          description: Timestamp that indicates the time at which the token was issued
+          example: '1714233677'
+        expireAt:
+          type: string
+          description: Token expiration time
+          example: '1714237277'
diff --git a/openapi/features/auth/errors/unauthorized-error.yaml b/openapi/features/auth/errors/unauthorized-error.yaml
new file mode 100644
index 0000000..947fc54
--- /dev/null
+++ b/openapi/features/auth/errors/unauthorized-error.yaml
@@ -0,0 +1,12 @@
+description: Unable to authenticate user
+content:
+  application/json:
+    schema:
+      type: object
+      properties:
+        code:
+          type: number
+          example: 401
+        message:
+          type: string
+          example: Not authenticated
diff --git a/openapi/features/auth/login-path.yaml b/openapi/features/auth/login-path.yaml
new file mode 100644
index 0000000..56df4ff
--- /dev/null
+++ b/openapi/features/auth/login-path.yaml
@@ -0,0 +1,18 @@
+post:
+  summary: User login for system authentication
+  description: This endpoint allows the user to authenticate into the application.
+  tags:
+    - user
+
+  requestBody:
+    $ref: './components/user-login-body.yaml'
+
+  responses:
+    '200':
+      $ref: './components/login-response-body.yaml'
+    '400':
+      $ref: '../../shared/errors/validation-error.yaml'
+    '401':
+      $ref: './errors/unauthorized-error.yaml'
+    '500':
+      $ref: '../../shared/errors/server-error.yaml'
diff --git a/openapi/main.yaml b/openapi/main.yaml
index 7f34648..72de1ca 100644
--- a/openapi/main.yaml
+++ b/openapi/main.yaml
@@ -13,3 +13,5 @@ tags:
 paths:
   /api/users:
     $ref: './features/user/user-create-path.yaml'
+  /auth/login:
+    $ref: './features/auth/login-path.yaml'