diff --git a/app/Http/Controllers/Api/Auth/Users.php b/app/Http/Controllers/Api/Auth/Users.php
index 54c8e40dd..ab75d6d42 100644
--- a/app/Http/Controllers/Api/Auth/Users.php
+++ b/app/Http/Controllers/Api/Auth/Users.php
@@ -27,11 +27,18 @@ class Users extends ApiController
     /**
      * Display the specified resource.
      *
-     * @param  User  $user
+     * @param  int|string  $id
      * @return \Dingo\Api\Http\Response
      */
-    public function show(User $user)
+    public function show($id)
     {
+        // Check if we're querying by id or email
+        if (is_numeric($id)) {
+            $user = User::with(['roles', 'permissions'])->findOrFail($id);
+        } else {
+            $user = User::with(['roles', 'permissions'])->where('email', $id)->first();
+        }
+
         return $this->response->item($user, new Transformer());
     }
 
diff --git a/app/Http/Controllers/Api/Expenses/Vendors.php b/app/Http/Controllers/Api/Expenses/Vendors.php
index beb3bec92..b7321eb87 100644
--- a/app/Http/Controllers/Api/Expenses/Vendors.php
+++ b/app/Http/Controllers/Api/Expenses/Vendors.php
@@ -27,11 +27,18 @@ class Vendors extends ApiController
     /**
      * Display the specified resource.
      *
-     * @param  Vendor  $vendor
+     * @param  int|string  $id
      * @return \Dingo\Api\Http\Response
      */
-    public function show(Vendor $vendor)
+    public function show($id)
     {
+        // Check if we're querying by id or email
+        if (is_numeric($id)) {
+            $vendor = Vendor::findOrFail($id);
+        } else {
+            $vendor = Vendor::where('email', $id)->first();
+        }
+
         return $this->response->item($vendor, new Transformer());
     }
 
diff --git a/app/Http/Controllers/Api/Incomes/Customers.php b/app/Http/Controllers/Api/Incomes/Customers.php
index 736b410dc..8638cfc3d 100644
--- a/app/Http/Controllers/Api/Incomes/Customers.php
+++ b/app/Http/Controllers/Api/Incomes/Customers.php
@@ -27,11 +27,18 @@ class Customers extends ApiController
     /**
      * Display the specified resource.
      *
-     * @param  Customer  $customer
+     * @param  int|string  $id
      * @return \Dingo\Api\Http\Response
      */
-    public function show(Customer $customer)
+    public function show($id)
     {
+        // Check if we're querying by id or email
+        if (is_numeric($id)) {
+            $customer = Customer::findOrFail($id);
+        } else {
+            $customer = Customer::where('email', $id)->first();
+        }
+
         return $this->response->item($customer, new Transformer());
     }