diff --git a/openapi.yaml b/openapi.yaml
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+openapi: 3.1.0
+info:
+  version: 1.0.0
+  title: Swagger Petstore
+  license:
+    name: MIT
+    url: https://opensource.org/licenses/MIT
+servers:
+- url: http://petstore.swagger.io/v1
+paths:
+  "/pets":
+    get:
+      summary: List all pets
+      operationId: listPets
+      tags:
+      - pets
+      parameters:
+      - name: limit
+        in: query
+        description: How many items to return at one time (max 100)
+        required: false
+        schema:
+          type: integer
+          format: int32
+      responses:
+        '200':
+          description: A paged array of pets
+          headers:
+            x-next:
+              description: A link to the next page of responses
+              schema:
+                type: string
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Pets"
+        default:
+          description: unexpected error
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+    post:
+      summary: Create a pet
+      operationId: createPets
+      tags:
+      - pets
+      responses:
+        '201':
+          description: Null response
+        default:
+          description: unexpected error
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+  "/pets/{petId}":
+    get:
+      summary: Info for a specific pet
+      operationId: showPetById
+      tags:
+      - pets
+      parameters:
+      - name: petId
+        in: path
+        required: true
+        description: The id of the pet to retrieve
+        schema:
+          type: string
+      responses:
+        '200':
+          description: Expected response to a valid request
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Pet"
+        default:
+          description: unexpected error
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+components:
+  schemas:
+    Pet:
+      type: object
+      required:
+      - id
+      - name
+      properties:
+        id:
+          type: integer
+          format: int64
+        name:
+          type: string
+        tag:
+          type: string
+    Pets:
+      type: array
+      items:
+        "$ref": "#/components/schemas/Pet"
+    Error:
+      type: object
+      required:
+      - code
+      - message
+      properties:
+        code:
+          type: integer
+          format: int32
+        message:
+          type: string
+