diff --git a/config/description.exs b/config/description.exs
index 9d8e3b93c..72bb4d436 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -3194,5 +3194,19 @@ config :pleroma, :config_description, [
         ]
       }
     ]
+  },
+  %{
+    group: :pleroma,
+    key: Pleroma.Web.ApiSpec.CastAndValidate,
+    type: :group,
+    children: [
+      %{
+        key: :strict,
+        type: :boolean,
+        description:
+          "Enables strict input validation (useful in development, not recommended in production)",
+        suggestions: [false]
+      }
+    ]
   }
 ]
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 681ab6b93..705c4c15e 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -924,4 +924,8 @@ Restrict access for unauthenticated users to timelines (public and federate), us
   * `remote`
 * `activities` - statuses
   * `local`
-  * `remote`
\ No newline at end of file
+  * `remote`
+
+## Pleroma.Web.ApiSpec.CastAndValidate
+
+* `:strict` a boolean, enables strict input validation (useful in development, not recommended in production). Defaults to `false`.