diff --git a/src/Controller/RequestController.php b/src/Controller/RequestController.php
index 45ccb62..789cf98 100644
--- a/src/Controller/RequestController.php
+++ b/src/Controller/RequestController.php
@@ -8,12 +8,17 @@ use App\Repository\ApikeyRepository;
 use App\Repository\DomainRepository;
 use DI\Container;
 use DI\ContainerBuilder;
+use OpenApi\Annotations\ServerVariable;
+use OpenApi\Annotations\Tag;
+use OpenApi\Generator;
 use UnhandledMatchError;
 use function DI\autowire;
+use OpenApi\Attributes as OAT;
 
 /**
  *
  */
+#[OAT\Info(version: '0.0.1', title: 'bindAPI' )]
 class RequestController
 {
 	//private DatabaseConnection $databaseConnection;
@@ -46,54 +51,164 @@ class RequestController
 		$this->apikeyRepository = $this->container->get(name: ApikeyRepository::class);
 		
 	}
-	
+
 	
 	/**
+	 * @OA\Server(
+	 *   url = "https://ns2.24unix.net/api"
+	 * )
+	 * @OA\Tag(name = "Server")
+	 * @OA\Get(
+	 *     path = "/ping",
+	 *     summary = "Returning pong.",
+	 *     description = "Can be used to check API or server availability.",
+	 *     tags={"Server"},
+	 *     @OA\Response(response = "200", description = "OK"),
+	 *     @OA\Response(response = "401", description = "API key is missing or invalid."),
+	 *     security={
+	 *         {"Authorization":{"read"}}
+	 *     }
+	 * )
+	 *
+	 * @OA\SecurityScheme (name="bindAPISecurity",
+	 *     type="apiKey",
+	 *     description="description",
+	 *     name="X-API-Key",
+	 *     in="header",
+	 *     securityScheme="Authorization"
+	 *
+	 * )
+	 * @SwaggerDefinition(
+	 *     securityDefinition = @SecurityDefinition(
+	 *         apiKeyAuthDefinitions = {
+	 *             @ApiKeyAuthDefinition(
+	 *                 key = "X-API-Key", in = ApiKeyAuthDefinition.ApiKeyLocation.HEADER, name = "X-API-KEY"
+	 *             )
+	 *         }
+	 *     )
+	 * )
+	 * @OA\Tag(name = "Domains")
+	 * @OA\Get(
+	 *     path="/domains",
+	 *     summary="Listing all domains.",
+	 *     description="desc",
+	 *     tags={"Domains"},
+	 *     @OA\Response(response="200", description="OK"),
+	 *     @OA\Response(response = "401", description = "API key is missing or invalid."),
+	 *     @OA\Response(response="404", description="Domain not found."),
+	 *     security={
+	 *         {"Authorization":{"read":"write"}}
+	 *     }
+	 * )
+	 * @OA\Post(
+	 *     path="/domains",
+	 *     summary="Create a domain.",
+	 *     description="Creates a new domain.",
+	 *     tags={"Domains"},
+	 *     @OA\Response(response="201", description="Created"),
+	 *     @OA\Response(response = "400", description = "Invalid request body."),
+	 *     @OA\Response(response = "401", description = "API key is missing or invalid."),
+	 *     @OA\Response(response="404", description="Domain not found."),
+	 *     security={
+	 *         {"Authorization":{"read":"write"}}
+	 *     }
+	 * )
+	 * @OA\Get(
+	 *     path="/domains/{name}",
+	 *     summary="Returns a single domain.",
+	 *     description="Returns information of a single domain specified by its domain name.",
+	 *     tags={"Domains"},
+	 *     @OA\Response(response="200", description="OK"),
+	 *     @OA\Response(response = "401", description = "API key is missing or invalid."),
+	 *     @OA\Response(response="404", description="Domain not found."),
+	 *     security={
+	 *         {"Authorization":{"read":"write"}}
+	 *     }
+	 * )
+	 * @OA\Put(
+	 *     path="/domains/{name}",
+	 *     summary="Updates a domain.",
+	 *     description="Updates a domain. Only supplied fields will be updated, existing won't be affected.",
+	 *     tags={"Domains"},
+	 *     @OA\Response(response="200", description="OK"),
+	 *     @OA\Response(response = "401", description = "API key is missing or invalid."),
+	 *     @OA\Response(response="404", description="Domain not found."),
+	 *     security={
+	 *         {"Authorization":{"read":"write"}}
+	 *     }
+	 * )
+	 * @OA\Delete (
+	 *     path="/domains/{name}",
+	 *     summary="Deletes a domain.",
+	 *     description="Deletes a domain.",
+	 *     tags={"Domains"},
+	 *     @OA\Response(response="200", description="OK"),
+	 *     @OA\Response(response = "401", description = "API key is missing or invalid."),
+	 *     @OA\Response(response="404", description="Domain not found."),
+	 *     security={
+	 *         {"Authorization":{"read":"write"}}
+	 *     }
+	 * )
+	 *
 	 * @return void
 	 */
 	public function processRequest()
 	{
-		if (empty($this->uri[2]) || !(($this->uri[2] == 'domains') || $this->uri[2] == 'ping')) {
+		$command = $this->uri[2];
+		
+		if (empty($command) || !(($command == 'domains') || ($command == 'ping') || ($command == 'apidoc'))) {
 			$this->header = '404 Not Found';
 			$this->status = "404 Not Found";
 			$this->message = "Endpoint not found.";
 		} else {
-			if ($this->checkPassword()) {
-				if ($this->uri[2] == "ping") {
-					$this->header = '200 OK';
-					$this->status = 'pong';
-				} else {
-					try {
-						match ($this->requestMethod) {
-							'GET' => $this->handleDomainGetRequest(),
-							'POST' => $this->handleDomainPostRequest(),
-							'PUT' => $this->handleDomainPutRequest(),
-							'DELETE' => $this->handleDomainDeleteRequest()
-						};
-					} catch (UnhandledMatchError) {
-						$this->header = '400 Bad Request';
-						$this->status = '400 Bad Request';
-						$this->message = "unknown request method: $this->requestMethod";
+			if ($command == 'apidoc') {
+				$openapi = Generator::scan(sources: [__DIR__ . 'RequestController.php']);
+				$this->status = 'openapi';
+				$this->result[] = $openapi->toJson();
+			} else {
+				if ($this->checkPassword()) {
+					
+					if ($this->uri[2] == "ping") {
+						$this->header = '200 OK';
+						$this->status = 'pong';
+					} else {
+						try {
+							match ($this->requestMethod) {
+								'GET' => $this->handleDomainGetRequest(),
+								'POST' => $this->handleDomainPostRequest(),
+								'PUT' => $this->handleDomainPutRequest(),
+								'DELETE' => $this->handleDomainDeleteRequest()
+							};
+						} catch (UnhandledMatchError) {
+							$this->header = '400 Bad Request';
+							$this->status = '400 Bad Request';
+							$this->message = "unknown request method: $this->requestMethod";
+						}
 					}
 				}
 			}
-		}
-		
-		if (!empty($this->header)) {
-			header(header: $_SERVER['SERVER_PROTOCOL'] . ' ' . $this->header);
-		}
-		if (!empty($this->result)) {
-			echo json_encode(value: $this->result);
-		} else {
-			if (!empty($this->status) && $this->status == 'pong') {
-				echo json_encode(value: [
-					'response' => $this->status
-				]);
+			
+			if (!empty($this->header)) {
+				header(header: $_SERVER['SERVER_PROTOCOL'] . ' ' . $this->header);
+			}
+			if (!empty($this->result)) {
+				if (!empty($this->status) && $this->status == 'openapi') {
+					header(header: 'Content-Type: application/json');
+					echo $this->result[0];
+				} else {
+					echo json_encode(value: $this->result);
+				}
 			} else {
-				echo json_encode(value: [
-					'status'  => $this->status ?? "Error: No status",
-					'message' => $this->message ?? "Error: No message."
-				]);
+				if (!empty($this->status) && $this->status == 'pong') {
+					echo json_encode(value: [
+						'response' => $this->status
+					]);
+				} else {
+					echo json_encode(value: [
+						'status'  => $this->status ?? "Error: No status",
+						'message' => $this->message ?? "Error: No message."
+					]);
+				}
 			}
 		}
 	}
@@ -173,7 +288,8 @@ class RequestController
 	/**
 	 * @return void
 	 */
-	public function handleDomainPostRequest(): void
+	public
+	function handleDomainPostRequest(): void
 	{
 		$name = $_POST['name'] ?? '';
 		$panelID = intval(value: $_POST['panel_id'] ?? 0);
@@ -206,7 +322,8 @@ class RequestController
 	/**
 	 * @return void
 	 */
-	public function handleDomainPutRequest(): void
+	public
+	function handleDomainPutRequest(): void
 	{
 		$putData = fopen(filename: 'php://input', mode: 'r');
 		$data = fread(stream: $putData, length: 512);
@@ -249,10 +366,12 @@ class RequestController
 		}
 	}
 	
+	
 	/**
 	 * @return void
 	 */
-	public function handleDomainDeleteRequest(): void
+	public
+	function handleDomainDeleteRequest(): void
 	{
 		$deleteData = fopen(filename: 'php://input', mode: 'r');
 		$data = fread(stream: $deleteData, length: 512);