diff --git a/module/CLI/test/Command/Api/InitialApiKeyCommandTest.php b/module/CLI/test/Command/Api/InitialApiKeyCommandTest.php
new file mode 100644
index 00000000..e0732aab
--- /dev/null
+++ b/module/CLI/test/Command/Api/InitialApiKeyCommandTest.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\CLI\Command\Api;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use Shlinkio\Shlink\CLI\Command\Api\InitialApiKeyCommand;
+use Shlinkio\Shlink\Rest\Entity\ApiKey;
+use Shlinkio\Shlink\Rest\Service\ApiKeyServiceInterface;
+use ShlinkioTest\Shlink\CLI\CliTestUtilsTrait;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Tester\CommandTester;
+
+class InitialApiKeyCommandTest extends TestCase
+{
+    use CliTestUtilsTrait;
+
+    private CommandTester $commandTester;
+    private MockObject & ApiKeyServiceInterface $apiKeyService;
+
+    public function setUp(): void
+    {
+        $this->apiKeyService = $this->createMock(ApiKeyServiceInterface::class);
+        $this->commandTester = $this->testerForCommand(new InitialApiKeyCommand($this->apiKeyService));
+    }
+
+    #[Test, DataProvider('provideParams')]
+    public function initialKeyIsCreatedWithProvidedValue(?ApiKey $result, bool $verbose, string $expectedOutput): void
+    {
+        $this->apiKeyService->expects($this->once())->method('createInitial')->with('the_key')->willReturn($result);
+
+        $this->commandTester->execute(
+            ['apiKey' => 'the_key'],
+            ['verbosity' => $verbose ? OutputInterface::VERBOSITY_VERBOSE : OutputInterface::VERBOSITY_NORMAL],
+        );
+        $output = $this->commandTester->getDisplay();
+
+        self::assertEquals($expectedOutput, $output);
+    }
+
+    public static function provideParams(): iterable
+    {
+        yield 'api key created, no verbose' => [ApiKey::create(), false, ''];
+        yield 'api key created, verbose' => [ApiKey::create(), true, ''];
+        yield 'no api key created, no verbose' => [null, false, ''];
+        yield 'no api key created, verbose' => [null, true, <<<OUT
+            Other API keys already exist. Initial API key creation skipped.
+
+            OUT,
+        ];
+    }
+}
diff --git a/module/Rest/test/Service/ApiKeyServiceTest.php b/module/Rest/test/Service/ApiKeyServiceTest.php
index 5c9d28db..c96d4f5f 100644
--- a/module/Rest/test/Service/ApiKeyServiceTest.php
+++ b/module/Rest/test/Service/ApiKeyServiceTest.php
@@ -6,7 +6,6 @@ namespace ShlinkioTest\Shlink\Rest\Service;
 
 use Cake\Chronos\Chronos;
 use Doctrine\ORM\EntityManager;
-use Doctrine\ORM\EntityRepository;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\MockObject\MockObject;