Before diving into the code, let's understand the problem. Without a license system, your application is freeware. A license system allows you to:

This prevents "one key, thousand installs" issues.

Your endpoint will be attacked. Implement these immediately:

You'll need a UI to manage this. Essential features:

Store in database:

return implode('-', $segments);

( api.php ):

public function storeLicense(Request $request)

// routes/api.php Route::post('/license/validate', [LicenseVerificationController::class, 'validate'])->name('license.validate');

function generateLicenseKey($prefix = '', $segments = 4, $charsPerSegment = 4)

$jwt = JWT::encode($payload, env('JWT_SECRET'), 'HS256');