diff --git a/validation/applications.json b/validation/applications.json
new file mode 100644
index 0000000..026bd47
--- /dev/null
+++ b/validation/applications.json
@@ -0,0 +1,6 @@
+{
+    "$jsonSchema": {
+        "required": [],
+        "properties": {}
+    }
+}
\ No newline at end of file
diff --git a/validation/context.json b/validation/context.json
new file mode 100644
index 0000000..026bd47
--- /dev/null
+++ b/validation/context.json
@@ -0,0 +1,6 @@
+{
+    "$jsonSchema": {
+        "required": [],
+        "properties": {}
+    }
+}
\ No newline at end of file
diff --git a/validation/messages.json b/validation/messages.json
new file mode 100644
index 0000000..6148354
--- /dev/null
+++ b/validation/messages.json
@@ -0,0 +1,36 @@
+{
+    "$jsonSchema": {
+        "required": [
+            "origin",
+            "origin.chat",
+            "origin.id",
+            "destination",
+            "destination.chat",
+            "destination.id"
+        ],
+        "properties": {
+            "origin": {
+                "bsonType": "object"
+            },
+            "origin.chat": {
+                "bsonType": ["int", "long"],
+                "description": "Telegram ID of message's origin chat"
+            },
+            "origin.id": {
+                "bsonType": ["int", "long"],
+                "description": "ID of message in origin chat"
+            },
+            "destination": {
+                "bsonType": "object"
+            },
+            "destination.chat": {
+                "bsonType": ["int", "long"],
+                "description": "Telegram ID of message's destination chat"
+            },
+            "destination.id": {
+                "bsonType": ["int", "long"],
+                "description": "ID of message in destination chat"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/validation/sponsorships.json b/validation/sponsorships.json
new file mode 100644
index 0000000..026bd47
--- /dev/null
+++ b/validation/sponsorships.json
@@ -0,0 +1,6 @@
+{
+    "$jsonSchema": {
+        "required": [],
+        "properties": {}
+    }
+}
\ No newline at end of file
diff --git a/validation/users.json b/validation/users.json
new file mode 100644
index 0000000..9a7a19d
--- /dev/null
+++ b/validation/users.json
@@ -0,0 +1,38 @@
+{
+    "$jsonSchema": {
+        "required": [
+            "user",
+            "link",
+            "tg_name",
+            "tg_phone",
+            "tg_locale",
+            "tg_username"
+        ],
+        "properties": {
+            "user": {
+                "bsonType": ["int", "long"],
+                "description": "Telegram ID of user"
+            },
+            "link": {
+                "bsonType": "string",
+                "description": "Invite link to destination group"
+            },
+            "tg_name": {
+                "bsonType": "string",
+                "description": "Telegram first name"
+            },
+            "tg_phone": {
+                "bsonType": "string",
+                "description": "Telegram phone number"
+            },
+            "tg_locale": {
+                "bsonType": "string",
+                "description": "Telegram locale"
+            },
+            "tg_username": {
+                "bsonType": "string",
+                "description": "Telegram username"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/validation/warnings.json b/validation/warnings.json
new file mode 100644
index 0000000..026bd47
--- /dev/null
+++ b/validation/warnings.json
@@ -0,0 +1,6 @@
+{
+    "$jsonSchema": {
+        "required": [],
+        "properties": {}
+    }
+}
\ No newline at end of file