diff --git a/public/forgejo/api.v1.yml b/public/forgejo/api.v1.yml
new file mode 100644
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+++ b/public/forgejo/api.v1.yml
@@ -0,0 +1,40 @@
+openapi: 3.0.0
+info:
+  title: Forgejo API
+  description: |-
+    Forgejo REST API
+
+  contact:
+    email: contact@forgejo.org
+  license:
+    name: MIT
+    url: https://codeberg.org/forgejo/forgejo/src/branch/forgejo/LICENSE
+  version: 1.0.0
+externalDocs:
+  description: Find out more about Forgejo
+  url: http://forgejo.org
+servers:
+  - url: /api/forgejo/v1
+paths:
+  /version:
+    get:
+      summary: API version
+      description: Semantic version of the Forgejo API
+      operationId: getVersion
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Version'
+components:
+  schemas:
+    Version:
+      type: object
+      properties:
+        version:
+          type: string
+