diff --git a/api/auth/api.yaml b/api/auth/api.yaml
new file mode 100644
index 0000000..33f5654
--- /dev/null
+++ b/api/auth/api.yaml
@@ -0,0 +1,113 @@
+openapi: 3.0.0
+info:
+  title: Authentication API
+  version: 1.0.0
+servers:
+  - url: https://id.logidex.ru/api/auth
+paths:
+  /otp/request:
+    post:
+      summary: Request OTP
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RequestOTPRequest'
+
+      responses:
+        '200':
+          description: OTP requested successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RequestOTPResponse'
+        '400':
+          description: Bad request
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RequestOTPResponse'
+  /otp/verify:
+    post:
+      summary: Verify OTP
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/VerifyOTPRequest'
+      responses:
+        '200':
+          description: OTP verified successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VerifyOTPResponse'
+        '400':
+          description: Bad request
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VerifyOTPResponse'
+components:
+  schemas:
+    RequestOTPRequest:
+      type: object
+      properties:
+        phone_number:
+          type: string
+          description: Phone number to send OTP to
+          example: "+79999999999"
+          maxLength: 15
+      required:
+        - phone_number
+    RequestOTPResponse:
+      type: object
+      properties:
+        message:
+          type: string
+          description: Confirmation message
+          example: "OTP sent successfully"
+        ok:
+          type: boolean
+          description: Status of the request
+          example: true
+      required:
+        - message
+        - ok
+    VerifyOTPRequest:
+      type: object
+      properties:
+        phone_number:
+          type: string
+          description: Phone number to verify OTP for
+          example: "+79999999999"
+          maxLength: 15
+        otp:
+          type: string
+          description: One-time password to verify
+          example: "123456"
+          maxLength: 6
+        login_challenge:
+          type: string
+          description: Login challenge for verification
+          example: "challenge123"
+      required:
+        - phone_number
+        - otp
+        - login_challenge
+    VerifyOTPResponse:
+      type: object
+      properties:
+        redirect_url:
+          type: string
+          description: URL to redirect to after successful verification
+          example: "https://example.com/redirect"
+        ok:
+          type: boolean
+          description: Status of the verification
+          example: true
+      required:
+        - redirect_url
+        - ok
\ No newline at end of file
diff --git a/api/auth/cfg.yaml b/api/auth/cfg.yaml
new file mode 100644
index 0000000..c73a53e
--- /dev/null
+++ b/api/auth/cfg.yaml
@@ -0,0 +1,6 @@
+package: handler
+generate:
+  fiber-server: true
+  strict-server: true
+  models: true
+output: gen.go
\ No newline at end of file
diff --git a/api/todo/todo.yaml b/api/todo/api.yaml
similarity index 100%
rename from api/todo/todo.yaml
rename to api/todo/api.yaml
diff --git a/api/user/user.yaml b/api/user/api.yaml
similarity index 100%
rename from api/user/user.yaml
rename to api/user/api.yaml
diff --git a/config.yaml b/config.yaml
new file mode 100644
index 0000000..7b8a4f2
--- /dev/null
+++ b/config.yaml
@@ -0,0 +1,10 @@
+app:
+  port: 8080
+
+redis:
+  host: localhost
+  port: 6379
+  db: 0
+
+hydra:
+  host: https://oauth2.logidex.ru/admin
\ No newline at end of file
diff --git a/openapi.yaml b/openapi.yaml
new file mode 100644
index 0000000..217a381
--- /dev/null
+++ b/openapi.yaml
@@ -0,0 +1,9 @@
+openapi: 3.0.0
+info:
+  title: Logidex ID API
+  version: 1.0.0
+
+paths:
+  /auth:
+    $ref: './api/auth/api.yaml#/paths'
+