diff --git a/app/Http/Controllers/SchedulerController.php b/app/Http/Controllers/SchedulerController.php
index 91f64068d427..6ec669972dde 100644
--- a/app/Http/Controllers/SchedulerController.php
+++ b/app/Http/Controllers/SchedulerController.php
@@ -15,7 +15,10 @@ class SchedulerController extends Controller
 {
     public function index()
     {
-        if (auth()->user()->company()->account->latest_version == '0.0.0') {
+        /** @var \App\Models\User $user */
+        $user = auth()->user();
+
+        if ($user->company()->account->latest_version == '0.0.0') {
             return response()->json(['message' => ctrans('texts.scheduler_has_never_run')], 400);
         } else {
             return response()->json(['message' => ctrans('texts.scheduler_has_run')], 200);
diff --git a/app/Http/Controllers/SearchController.php b/app/Http/Controllers/SearchController.php
new file mode 100644
index 000000000000..d3510e006306
--- /dev/null
+++ b/app/Http/Controllers/SearchController.php
@@ -0,0 +1,91 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Http\Controllers;
+
+use App\Models\User;
+use App\Models\Client;
+use App\Models\ClientContact;
+use App\Http\Requests\Search\GenericSearchRequest;
+use App\Models\Invoice;
+
+class SearchController extends Controller
+{
+    public function __invoke(GenericSearchRequest $request)
+    {
+        /** @var \App\Models\User $user */
+        $user = auth()->user();
+
+        // $search = collect([Client::class, Invoice::class])->each(function )
+        return response()->json([
+            'clients' => $this->clientMap($user),
+            'client_contacts' => $this->clientContactMap($user),
+            'invoices' => $this->invoiceMap($user),
+        ], 200);
+
+    }
+
+    private function clientMap(User $user) {
+
+        return Client::query()
+                     ->company()
+                     ->when($user->cannot('view_all') || $user->cannot('view_client'), function ($query) use($user) {
+                         $query->where('user_id', $user->id);
+                     })
+                     ->cursor()
+                     ->map(function ($client){
+                        return [
+                            'name' => $client->present()->name(), 
+                            'type' => 'client', 
+                            'id' => $client->hashed_id,
+                            'path' => "clients/{$client->hashed_id}/edit"
+                        ];
+                     });
+    }
+
+    private function clientContactMap(User $user) {
+
+        return ClientContact::query()
+                     ->company()
+                     ->with('client')
+                     ->when($user->cannot('view_all') || $user->cannot('view_client'), function ($query) use($user) {
+                         $query->where('user_id', $user->id);
+                     })
+                     ->cursor()
+                     ->map(function ($contact){
+                        return [
+                            'name' => $contact->present()->search_display(), 
+                            'type' => 'client_contact', 
+                            'id' => $contact->client->hashed_id,
+                            'path' => "clients/{$contact->client->hashed_id}"
+                        ];
+                     });
+    }
+
+    private function invoiceMap(User $user) {
+
+        return Invoice::query()
+                     ->company()
+                     ->with('client')
+                     ->when($user->cannot('view_all') || $user->cannot('view_invoice'), function ($query) use($user) {
+                         $query->where('user_id', $user->id);
+                     })
+                     ->cursor()
+                     ->map(function ($invoice){
+                        return [
+                            'name' => $invoice->client->present()->name() . ' - ' . $invoice->number, 
+                            'type' => 'invoice', 
+                            'id' => $invoice->hashed_id,
+                            'path' => "clients/{$invoice->hashed_id}/edit"
+                        ];
+                     });
+    }
+}
diff --git a/app/Http/Requests/Search/GenericSearchRequest.php b/app/Http/Requests/Search/GenericSearchRequest.php
new file mode 100644
index 000000000000..8bd4f4b46970
--- /dev/null
+++ b/app/Http/Requests/Search/GenericSearchRequest.php
@@ -0,0 +1,43 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Http\Requests\Search;
+
+use App\Http\Requests\Request;
+
+class GenericSearchRequest extends Request
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize() : bool
+    {
+        return true;
+    }
+
+    public function rules()
+    {
+        $rules = [
+            'search' => 'bail|sometimes|string'
+        ];
+
+        return $rules;
+    }
+
+    public function prepareForValidation()
+    {
+        $input = $this->all();
+
+        $this->replace($input);
+    }
+}
diff --git a/app/Models/Presenters/ClientContactPresenter.php b/app/Models/Presenters/ClientContactPresenter.php
index dc2229d8e2c9..177421a6edfa 100644
--- a/app/Models/Presenters/ClientContactPresenter.php
+++ b/app/Models/Presenters/ClientContactPresenter.php
@@ -32,11 +32,16 @@ class ClientContactPresenter extends EntityPresenter
 
     public function first_name()
     {
-        return $this->entity->first_name ?: '';
+        return $this->entity->first_name ?? '';
     }
 
     public function last_name()
     {
-        return $this->entity->last_name ?: '';
+        return $this->entity->last_name ?? '';
+    }
+
+    public function search_display()
+    {
+        return $this->name().' <'.$this->entity->email.'>' ?? '';
     }
 }
diff --git a/app/Services/Client/ClientService.php b/app/Services/Client/ClientService.php
index 25b5a827aaef..96878cd2480e 100644
--- a/app/Services/Client/ClientService.php
+++ b/app/Services/Client/ClientService.php
@@ -82,7 +82,6 @@ class ClientService
                         ->where('is_deleted', 0)
                         ->whereIn('status_id', [Payment::STATUS_COMPLETED, Payment::STATUS_PENDING, Payment::STATUS_PARTIALLY_REFUNDED, Payment::STATUS_REFUNDED])
                         ->selectRaw('SUM(payments.amount - payments.applied) as amount')->first()->amount ?? 0;
-                        // ->sum(DB::Raw('amount - applied')->getValue(DB::connection()->getQueryGrammar()));
 
         DB::connection(config('database.default'))->transaction(function () use ($amount) {
             $this->client = Client::withTrashed()->where('id', $this->client->id)->lockForUpdate()->first();
diff --git a/routes/api.php b/routes/api.php
index aa4e108a5273..3ce1fdc1737e 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -111,6 +111,7 @@ use App\Http\Controllers\Reports\ClientContactReportController;
 use App\Http\Controllers\Reports\PurchaseOrderReportController;
 use App\Http\Controllers\Reports\RecurringInvoiceReportController;
 use App\Http\Controllers\Reports\PurchaseOrderItemReportController;
+use App\Http\Controllers\SearchController;
 
 Route::group(['middleware' => ['throttle:api', 'api_secret_check']], function () {
     Route::post('api/v1/signup', [AccountController::class, 'store'])->name('signup.submit');
@@ -317,7 +318,7 @@ Route::group(['middleware' => ['throttle:api', 'api_db', 'token_auth', 'locale']
     Route::post('reports/tax_summary_report', TaxSummaryReportController::class);
     Route::post('reports/user_sales_report', UserSalesReportController::class);
     Route::post('reports/preview/{hash}', ReportPreviewController::class);
-
+    Route::post('search', SearchController::class);
 
     Route::resource('task_schedulers', TaskSchedulerController::class);
     Route::post('task_schedulers/bulk', [TaskSchedulerController::class, 'bulk'])->name('task_schedulers.bulk');
diff --git a/tests/Feature/Search/SearchApiTest.php b/tests/Feature/Search/SearchApiTest.php
new file mode 100644
index 000000000000..e04804e721b7
--- /dev/null
+++ b/tests/Feature/Search/SearchApiTest.php
@@ -0,0 +1,61 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace Tests\Feature\Search;
+
+use Tests\TestCase;
+use Tests\MockAccountData;
+use Illuminate\Validation\ValidationException;
+use Illuminate\Routing\Middleware\ThrottleRequests;
+use Illuminate\Foundation\Testing\DatabaseTransactions;
+
+/**
+ * @test
+ * @covers App\Http\Controllers\ActivityController
+ */
+class SearchApiTest extends TestCase
+{
+    use DatabaseTransactions;
+    use MockAccountData;
+
+    protected function setUp() :void
+    {
+        parent::setUp();
+
+        $this->makeTestData();
+
+        $this->withoutMiddleware(
+            ThrottleRequests::class
+        );
+        
+        $this->withoutExceptionHandling();
+
+    }
+
+    public function testActivityEntity()
+    {
+
+        $response = false;
+        
+        $data = [];
+
+        $response = $this->withHeaders([
+            'X-API-SECRET' => config('ninja.api_secret'),
+            'X-API-TOKEN' => $this->token,
+        ])->postJson('/api/v1/search', $data);
+
+        $response->assertStatus(200);
+
+        nlog($response->json());
+        
+    }
+
+}
\ No newline at end of file
diff --git a/tests/Unit/CheckDataTest.php b/tests/Unit/CheckDataTest.php
new file mode 100644
index 000000000000..2de8f3d26416
--- /dev/null
+++ b/tests/Unit/CheckDataTest.php
@@ -0,0 +1,285 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+use App\Models\User;
+use App\Utils\Ninja;
+use App\Models\Client;
+use App\Models\Account;
+use App\Models\Company;
+use App\Models\Invoice;
+use App\Models\Payment;
+use App\Models\Paymentable;
+use Illuminate\Support\Str;
+use App\Models\CompanyToken;
+use App\Models\ClientContact;
+use App\DataMapper\CompanySettings;
+use App\Factory\CompanyUserFactory;
+use Illuminate\Routing\Middleware\ThrottleRequests;
+
+/**
+ * @test
+ */
+class CheckDataTest extends TestCase
+{
+    protected $account;
+    protected $user;
+    protected $company;
+    protected $cu;
+    protected $token;
+    protected $client;
+    protected $faker;
+    /**
+     * Important consideration with Base64
+     * encoding checks.
+     *
+     * No method can guarantee against false positives.
+     */
+    protected function setUp() :void
+    {
+        parent::setUp();
+        
+        $this->faker = \Faker\Factory::create();
+
+        $this->withoutMiddleware(
+            ThrottleRequests::class
+        );
+
+    }
+
+    private function buildData()
+    {
+        $this->account = Account::factory()->create([
+            'hosted_client_count' => 1000,
+            'hosted_company_count' => 1000,
+        ]);
+
+        $this->account->num_users = 3;
+        $this->account->save();
+
+        $this->user = User::factory()->create([
+            'account_id' => $this->account->id,
+            'confirmation_code' => 'xyz123',
+            'email' => $this->faker->unique()->safeEmail(),
+        ]);
+
+        $settings = CompanySettings::defaults();
+        $settings->client_online_payment_notification = false;
+        $settings->client_manual_payment_notification = false;
+
+        $this->company = Company::factory()->create([
+            'account_id' => $this->account->id,
+            'settings' => $settings,
+        ]);
+
+        $this->company->settings = $settings;
+        $this->company->save();
+
+        $this->cu = CompanyUserFactory::create($this->user->id, $this->company->id, $this->account->id);
+        $this->cu->is_owner = true;
+        $this->cu->is_admin = true;
+        $this->cu->is_locked = false;
+        $this->cu->save();
+
+        $this->token = \Illuminate\Support\Str::random(64);
+
+        $company_token = new CompanyToken;
+        $company_token->user_id = $this->user->id;
+        $company_token->company_id = $this->company->id;
+        $company_token->account_id = $this->account->id;
+        $company_token->name = 'test token';
+        $company_token->token = $this->token;
+        $company_token->is_system = true;
+
+        $company_token->save();
+
+        $this->client = Client::factory()->create([
+            'user_id' => $this->user->id,
+            'company_id' => $this->company->id,
+            'is_deleted' => 0,
+            'name' => 'bob',
+            'address1' => '1234',
+            'balance' => 100,
+            'paid_to_date' => 50,
+        ]);
+
+        ClientContact::factory()->create([
+                'user_id' => $this->user->id,
+                'client_id' => $this->client->id,
+                'company_id' => $this->company->id,
+                'is_primary' => 1,
+                'first_name' => 'john',
+                'last_name' => 'doe',
+                'email' => 'john@doe.com'
+            ]);
+
+    }
+
+    public function testDbQueriesRaw5()
+    {
+        $this->buildData();
+
+        $i = Invoice::factory()->count(5)->create([
+            'user_id' => $this->user->id,
+            'client_id' => $this->client->id,
+            'company_id' => $this->company->id,
+        ]);
+
+        Invoice::where('status_id', 2)->cursor()->each(function ($i) {
+
+            $i->service()->markPaid()->save();
+
+        });
+
+        Payment::with('paymentables')->cursor()->each(function($payment){
+            $this->assertNotNull($payment->paymentables()->where('paymentable_type', \App\Models\Credit::class)->get()
+            ->sum(\DB::raw('amount')->getValue(\DB::connection()->getQueryGrammar())));
+        });
+     
+        Payment::with('paymentables')->cursor()->each(function ($payment) {
+            $this->assertNotNull($payment->paymentables()->where('paymentable_type', \App\Models\Credit::class)->get()
+            ->sum('amount'));
+        });
+
+        $amount = Paymentable::first()->payment->paymentables()->where('paymentable_type', 'invnoices')->get()->sum('amount');
+
+        $this->assertNotNull($amount);
+
+    }
+
+    public function testDbQueriesRaw4()
+    {
+        $this->buildData();
+
+        ClientContact::factory()->count(10)->create([
+            'user_id' => $this->user->id,
+            'client_id' => $this->client->id,
+            'company_id' => $this->company->id,
+        ]);
+
+        $clients_refactor = \DB::table('clients')
+                    ->leftJoin('client_contacts', function ($join){
+                         $join->on('client_contacts.client_id', '=', 'clients.id');
+                    })
+                    ->get(['clients.id', \DB::raw('count(client_contacts.id) as contact_count')]);
+
+        // $this->assertNotNull($clients);
+        $this->assertNotNull($clients_refactor);
+
+    }
+
+    public function testDbQueriesRaw3()
+    {
+        $this->buildData();
+
+        User::factory()->create([
+            'account_id' => $this->account->id,
+            'email' => $this->faker->unique()->safeEmail(),
+        ]);
+        
+        User::factory()->create([
+            'account_id' => $this->account->id,
+            'email' => $this->faker->unique()->safeEmail(),
+        ]);
+
+        $user_hash = 'a';
+
+        $user_count = User::where('account_id', $this->company->account->id)
+            ->where(
+                \DB::raw('CONCAT_WS(" ", first_name, last_name)'),
+                'like',
+                '%'.$user_hash.'%'
+            )
+            ->get();
+
+        $user_count_refactor = User::whereRaw("account_id = ? AND CONCAT_WS(' ', first_name, last_name) like ?", [$this->company->account_id, '%'.$user_hash.'%'])
+            ->get();
+
+
+        $this->assertEquals($user_count_refactor->count(), $user_count->count());
+    }
+
+    public function testDbRawQueries1()
+    {
+        $this->buildData();
+
+        $results = \DB::select(\DB::raw("
+            SELECT count(clients.id) as count
+            FROM clients
+        ")->getValue(\DB::connection()->getQueryGrammar()));
+    
+
+        $refactored = \DB::select("
+            SELECT count(clients.id) as count
+            FROM clients
+        ");
+
+        $this->assertEquals($refactored[0]->count, $results[0]->count);
+
+    }
+
+    public function testDbRawQueries2()
+    {
+        $this->buildData();
+
+        Payment::factory()->count(5)->create([
+            'client_id' => $this->client->id,
+            'company_id' => $this->company->id,
+            'user_id' => $this->user->id,
+        ]);
+
+        Invoice::factory()->count(5)->create([
+            'client_id' => $this->client->id,
+            'company_id' => $this->company->id,
+            'user_id' => $this->user->id,
+        ]);
+
+        Invoice::where('status_id', 2)->cursor()->each(function ($i) {
+
+            $i->service()->markPaid()->save();
+
+        });
+
+        $results = \DB::select(\DB::raw("
+                SELECT 
+                SUM(payments.amount) as amount
+                FROM payments
+                LEFT JOIN paymentables
+                ON
+                payments.id = paymentables.payment_id
+                WHERE paymentable_type = ?
+                AND paymentables.deleted_at is NULL
+                AND paymentables.amount > 0
+                AND payments.is_deleted = 0
+                AND payments.client_id = ?;
+                ")->getValue(\DB::connection()->getQueryGrammar()), ['invoices', $this->client->id]);
+            
+        $refactored = \DB::select("
+                SELECT 
+                SUM(payments.amount) as amount
+                FROM payments
+                LEFT JOIN paymentables
+                ON
+                payments.id = paymentables.payment_id
+                WHERE paymentable_type = ?
+                AND paymentables.deleted_at is NULL
+                AND paymentables.amount > 0
+                AND payments.is_deleted = 0
+                AND payments.client_id = ?;
+                ", ['invoices', $this->client->id]);
+
+        $this->assertEquals($refactored[0]->amount, $results[0]->amount);
+
+    }
+
+}