diff --git a/api.yaml b/api.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..2cb826fd6ef39b6702a2f3df2e4843f1c2902c84
--- /dev/null
+++ b/api.yaml
@@ -0,0 +1,26 @@
+openapi: 3.0.3
+info:
+  title: Aina
+  description: Aina
+  version: 1.0.0
+servers:
+  - url: 'http://localhost:8080'
+
+paths:
+  /classifier:
+    get:
+      operationId: getClassifier
+      responses:
+        '200':
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/OkayResponse"
+          description: OK
+
+components:
+  schemas:
+    OkayResponse:
+      properties:
+        response:
+          type: string
\ No newline at end of file