diff --git a/src/Downloader.php b/src/Downloader.php
index 0062c99..d107def 100644
--- a/src/Downloader.php
+++ b/src/Downloader.php
@@ -80,7 +80,6 @@ private function validate(string $schemaFile, array $arguments): void
             } else {
                 $errors = '';
                 foreach ($validator->getErrors() as $error) {
-                    var_dump($error);
                     $errors .= join(', ', $error);
                 }
                 throw new DownloaderException($errors);
diff --git a/src/fksdb/auth/request.json b/src/fksdb/auth/request.json
new file mode 100644
index 0000000..ebc8f55
--- /dev/null
+++ b/src/fksdb/auth/request.json
@@ -0,0 +1,20 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "object",
+  "required": [
+    "contestId",
+    "app"
+  ],
+  "properties": {
+    "contestId": {
+      "type": "integer"
+    },
+    "app": {
+      "type": "string",
+      "enum": [
+        "wiki",
+        "pm"
+      ]
+    }
+  }
+}
diff --git a/src/fksdb/auth/response.json b/src/fksdb/auth/response.json
new file mode 100644
index 0000000..2d29fe6
--- /dev/null
+++ b/src/fksdb/auth/response.json
@@ -0,0 +1,54 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "array",
+  "items": {
+    "type": "object",
+    "properties": {
+      "name": {
+        "type": "string"
+      },
+      "loginId": {
+        "type": [
+          "integer",
+          "null"
+        ]
+      },
+      "login": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "hash": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "email": {
+        "type": "string"
+      },
+      "roles": {
+        "type": "array",
+        "items": {
+          "type": "string",
+          "enum": [
+            "taskManager",
+            "dataManager",
+            "eventManager",
+            "inboxManager",
+            "boss",
+            "org",
+            "contestant",
+            "aesop",
+            "schoolManager",
+            "web",
+            "wiki",
+            "superuser",
+            "cartesian"
+          ]
+        }
+      }
+    }
+  }
+}
diff --git a/src/fksdb/events/request.json b/src/fksdb/events/request.json
new file mode 100644
index 0000000..daaa03c
--- /dev/null
+++ b/src/fksdb/events/request.json
@@ -0,0 +1,15 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "object",
+  "required": [
+    "eventTypes"
+  ],
+  "properties": {
+    "eventTypes": {
+      "type": "array",
+      "items": {
+        "type": "integer"
+      }
+    }
+  }
+}
diff --git a/src/fksdb/events/response.json b/src/fksdb/events/response.json
new file mode 100644
index 0000000..10ac21f
--- /dev/null
+++ b/src/fksdb/events/response.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "array",
+  "items": {
+    "type": "object"
+  }
+}
diff --git a/tools/downloader.php b/tools/downloader.php
index aa4c9d9..c66e1fe 100644
--- a/tools/downloader.php
+++ b/tools/downloader.php
@@ -16,20 +16,5 @@
         'password' => FKSDB_PASS,
     ],
 ]);
-var_dump($newDownloader->download('fksdb', 'GetOrganizers', ['contest_id' => 1, 'year' => 37]));
+
 return $newDownloader;
-/*
-return function (Request $request, bool $soap = true) use ($new): ?string {
-    try {
-        if ($soap) {
-            header('Content-Type: text/xml');
-            return $downloader->download($request);
-        } else {
-            header('Content-Type: text/json');
-            return $downloader->downloadJSON($request);
-        }
-    } catch (Throwable $exception) {
-        var_dump($exception);
-    }
-    return null;
-};*/