diff --git a/app/routers/mail.py b/app/routers/mail.py
index 1641840..e140385 100644
--- a/app/routers/mail.py
+++ b/app/routers/mail.py
@@ -38,4 +38,23 @@ async def create_user(userSingle: users.UserCreate | None = None):
     current_user = users.User(username=userSingle.username, password=users_token.get_password_hash(userSingle.password), email=userSingle.email)
     user_repository.save(current_user)
     database.connect_redis.set(userSingle.username, key_hashed)
-    return JSONResponse(status_code=status.HTTP_200_OK, content={"message": "email has been sent"})
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+    return JSONResponse(status_code=status.HTTP_200_OK, content={"message": "email has been sent"})
+
+@router.get("/mail",tags=["mail"])
+async def confirm_user(key: str | None = None, username: str | None = None):
+    if key is None or username is None:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Parameter key or/and username is empty"
+        )
+    user_repository = users.UserRepository(database=database.database)
+    user = user_repository.find_one_by({"username": {'$eq': username}})
+    key_hashed = database.connect_redis.get(username)
+    if key_hashed != key:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Key is invalid"
+        )
+    user.confirmed = True
+    user_repository.save(user)
+    return JSONResponse(status_code=status.HTTP_200_OK, content={"message": "user account confirmed"})
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