diff --git a/captainhook.json b/captainhook.json
index c32c88e..861398d 100644
--- a/captainhook.json
+++ b/captainhook.json
@@ -19,7 +19,7 @@
                 }
             },
             {
-                "action": "vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.php --diff",
+                "action": "vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.dist.php --diff",
                 "options": {}
             }
         ],
diff --git a/composer.json b/composer.json
index f5a613c..4117c75 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     }
   ],
   "require": {
-    "php": "^7.4",
+    "php": ">=7.4",
     "payplug/payplug-php": "^4.0"
   },
   "require-dev": {
diff --git a/composer.lock b/composer.lock
index 2f79b53..aa1de2d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0a4398cc6e87cedea47d0efd7031f4aa",
+    "content-hash": "31a08bc92d7c7c5d4662a29094eccd62",
     "packages": [
         {
             "name": "payplug/payplug-php",
@@ -1153,11 +1153,11 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.2.2",
+            "version": "2.2.3",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e5cc34d491a90e79c216d824f60fe21fd4d93bd6",
-                "reference": "e5cc34d491a90e79c216d824f60fe21fd4d93bd6",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/4048833dd47b377287818841877fb3087289509c",
+                "reference": "4048833dd47b377287818841877fb3087289509c",
                 "shasum": ""
             },
             "require": {
@@ -1213,7 +1213,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-06-05T09:00:01+00:00"
+            "time": "2026-06-30T21:15:26+00:00"
         },
         {
             "name": "phpstan/phpstan-mockery",
@@ -1266,21 +1266,22 @@
         },
         {
             "name": "phpstan/phpstan-phpunit",
-            "version": "2.0.16",
+            "version": "2.0.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan-phpunit.git",
-                "reference": "6ab598e1bc106e6827fd346ae4a12b4a5d634c32"
+                "reference": "c2f977551f0736d60467b3d754b2e0cf4e337b3f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/6ab598e1bc106e6827fd346ae4a12b4a5d634c32",
-                "reference": "6ab598e1bc106e6827fd346ae4a12b4a5d634c32",
+                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/c2f977551f0736d60467b3d754b2e0cf4e337b3f",
+                "reference": "c2f977551f0736d60467b3d754b2e0cf4e337b3f",
                 "shasum": ""
             },
             "require": {
+                "phar-io/version": "^3.2",
                 "php": "^7.4 || ^8.0",
-                "phpstan/phpstan": "^2.1.32"
+                "phpstan/phpstan": "^2.2.3"
             },
             "conflict": {
                 "phpunit/phpunit": "<7.0"
@@ -1290,7 +1291,8 @@
                 "php-parallel-lint/php-parallel-lint": "^1.2",
                 "phpstan/phpstan-deprecation-rules": "^2.0",
                 "phpstan/phpstan-strict-rules": "^2.0",
-                "phpunit/phpunit": "^9.6"
+                "phpunit/phpunit": "^9.6",
+                "shipmonk/name-collision-detector": "^2.1"
             },
             "type": "phpstan-extension",
             "extra": {
@@ -1316,9 +1318,9 @@
             ],
             "support": {
                 "issues": "https://github.com/phpstan/phpstan-phpunit/issues",
-                "source": "https://github.com/phpstan/phpstan-phpunit/tree/2.0.16"
+                "source": "https://github.com/phpstan/phpstan-phpunit/tree/2.0.17"
             },
-            "time": "2026-02-14T09:05:21+00:00"
+            "time": "2026-06-29T05:32:23+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -5148,12 +5150,12 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {},
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^7.4"
+        "php": ">=7.4"
     },
-    "platform-dev": {},
-    "plugin-api-version": "2.9.0"
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }
diff --git a/phpstan.neon b/phpstan.neon
index 656a6d0..04ca573 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -7,5 +7,6 @@ parameters:
     paths:
         - src
         - tests
-    ignoreErrors:
-        - '#Access to an undefined property Payplug\\Resource\\Payment::\$#'
+    stubFiles:
+        - stubs/PayplugPayment.stub
+    treatPhpDocTypesAsCertain: false
diff --git a/src/Actions/PaymentAction.php b/src/Actions/PaymentAction.php
index d5e7908..11fe3cc 100644
--- a/src/Actions/PaymentAction.php
+++ b/src/Actions/PaymentAction.php
@@ -81,7 +81,7 @@ public function refundAction(RefundInputDTO $refund_inputDTO): ?RefundOutputDTO
         $validator = new PaymentResourceValidator();
         $validator->validate($resource);
         $validator->validateIsPaid($resource);
-        $resource_id = $resource->id;
+        $resource_id = (string) $resource->id;
 
         // Format the attributes for the refund request
         $refund_gateway = $this->get_refund_gateway();
@@ -94,6 +94,20 @@ public function refundAction(RefundInputDTO $refund_inputDTO): ?RefundOutputDTO
         return RefundOutputDTO::create($refund);
     }
 
+    /**
+     * @param string $resource_id
+     * @param string $api_bearer
+     *
+     * @return ?PaymentOutputDTO
+     * @throws \Exception
+     */
+    public function retrieveAction(string $resource_id, string $api_bearer): ?PaymentOutputDTO
+    {
+        $resource = $this->get_api()->load($api_bearer)->retrievePaymentResource($resource_id);
+
+        return PaymentOutputDTO::create($resource);
+    }
+
     public function get_payment_gateway(): PaymentGatewayManager
     {
         return new PaymentGatewayManager();
diff --git a/src/Utilities/Services/Api.php b/src/Utilities/Services/Api.php
index bcaa6f3..17f0ab5 100644
--- a/src/Utilities/Services/Api.php
+++ b/src/Utilities/Services/Api.php
@@ -73,6 +73,34 @@ public function refundPaymentResource(string $resource_id, array $datas): array
         return $response;
     }
 
+    /**
+     * @param string $resource_id
+     * @return array<string, mixed>
+     */
+    public function retrievePaymentResource(string $resource_id): array
+    {
+        try {
+            if (null === $this->payplug_api) {
+                throw new \RuntimeException('API Payplug must be initialized.');
+            }
+            $response = [
+                'code'     => 200,
+                'message'  => 'OK',
+                'resource' => Payment::retrieve($resource_id, $this->payplug_api),
+                'result'   => true,
+            ];
+        } catch (\Exception $e) {
+            $response = [
+                'code'     => $e->getCode(),
+                'message'  => $e->getMessage(),
+                'resource' => null,
+                'result'   => false,
+            ];
+        }
+
+        return $response;
+    }
+
     public function getBearerToken(): string
     {
         return $this->bearer_token;
diff --git a/stubs/PayplugPayment.stub b/stubs/PayplugPayment.stub
new file mode 100644
index 0000000..0178171
--- /dev/null
+++ b/stubs/PayplugPayment.stub
@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Payplug\Resource;
+
+/**
+ * @property string|null $id
+ * @property bool|null $is_live
+ * @property bool|null $is_paid
+ * @property bool|null $is_refunded
+ * @property int $amount
+ * @property int $amount_refunded
+ * @property string|null $currency
+ * @property int|null $paid_at
+ * @property int|null $refundable_after
+ * @property int|null $refundable_until
+ * @property object|null $failure
+ * @property object|null $card
+ * @property object|null $billing
+ * @property object|null $metadata
+ */
+class Payment
+{
+    /** @var string|null */
+    public $id;
+
+    /** @var bool|null */
+    public $is_live;
+
+    /** @var bool|null */
+    public $is_paid;
+
+    /** @var bool|null */
+    public $is_refunded;
+
+    /** @var int */
+    public $amount;
+
+    /** @var int */
+    public $amount_refunded;
+
+    /** @var string|null */
+    public $currency;
+
+    /** @var int|null */
+    public $paid_at;
+
+    /** @var int|null */
+    public $refundable_after;
+
+    /** @var int|null */
+    public $refundable_until;
+
+    /** @var object|null */
+    public $failure;
+
+    /** @var object|null */
+    public $card;
+
+    /** @var object|null */
+    public $billing;
+
+    /** @var object|null */
+    public $metadata;
+}
diff --git a/tests/Integration/PaymentAction/retrieveActionTest.php b/tests/Integration/PaymentAction/retrieveActionTest.php
new file mode 100644
index 0000000..616069b
--- /dev/null
+++ b/tests/Integration/PaymentAction/retrieveActionTest.php
@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PayPlugPluginMcp\Tests\Integration\PaymentAction;
+
+use Mockery;
+use Mockery\MockInterface;
+use PayPlugPluginMcp\Actions\PaymentAction;
+use PayPlugPluginMcp\Tests\Mock\PaymentMock;
+use PayPlugPluginMcp\Tests\Mock\PaymentOutputDTOMock;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @group integration
+ */
+class retrieveActionTest extends TestCase
+{
+    /** @var PaymentAction&MockInterface */
+    private $action;
+
+    /** @var MockInterface */
+    private $payment_api;
+
+    public function setUp(): void
+    {
+        $this->action = Mockery::mock(PaymentAction::class, [])->makePartial();
+        $this->payment_api = \Mockery::mock('alias:Payplug\Payment');
+    }
+
+    public function tearDown(): void
+    {
+        Mockery::close();
+    }
+
+    public function testWhenResourceCantBeRetrieved(): void
+    {
+        $error_msg  = 'An error occurred during the process';
+        $error_code = 500;
+        $this->payment_api
+            ->shouldReceive('retrieve')
+            ->once()
+            ->andThrow(new \Exception($error_msg, $error_code));
+
+        $error_output_props = [
+            'code'     => $error_code,
+            'message'  => $error_msg,
+            'result'   => false,
+            'resource' => null,
+        ];
+        $this->assertEquals(
+            PaymentOutputDTOMock::get($error_output_props),
+            $this->action->retrieveAction('pay_5iHMDxy4ABR4YBVW4UscIn', 'sk_test_bearer_token')
+        );
+    }
+
+    public function testWhenResourceIsRetrieved(): void
+    {
+        $resource = PaymentMock::getStandard(['is_paid' => true]);
+        $this->payment_api
+            ->shouldReceive('retrieve')
+            ->once()
+            ->andReturn($resource);
+
+        $this->assertEquals(
+            PaymentOutputDTOMock::get(['resource' => $resource]),
+            $this->action->retrieveAction('pay_5iHMDxy4ABR4YBVW4UscIn', 'sk_test_bearer_token')
+        );
+    }
+}
diff --git a/tests/Units/Actions/PaymentAction/retrieveActionTest.php b/tests/Units/Actions/PaymentAction/retrieveActionTest.php
new file mode 100644
index 0000000..f615f42
--- /dev/null
+++ b/tests/Units/Actions/PaymentAction/retrieveActionTest.php
@@ -0,0 +1,105 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PayPlugPluginMcp\Tests\Units\Actions\PaymentAction;
+
+use Mockery\MockInterface;
+use PayPlugPluginMcp\Tests\Mock\PaymentMock;
+use PayPlugPluginMcp\Tests\Mock\PaymentOutputDTOMock;
+use PayPlugPluginMcp\Utilities\Services\Api;
+
+/**
+ * @group units
+ * @group action
+ * @group retrieve_action
+ */
+class retrieveActionTest extends paymentActionBase
+{
+    private const RESOURCE_ID = 'pay_5iHMDxy4ABR4YBVW4UscIn';
+    private const API_BEARER  = 'sk_test_bearer_token';
+
+    /** @var MockInterface */
+    private $api;
+
+    /** @var MockInterface */
+    private $api_service;
+
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->api = \Mockery::mock(Api::class);
+        $this->action->shouldReceive('get_api')
+            ->andReturn($this->api);
+
+        $this->api_service = \Mockery::mock(Api::class);
+    }
+
+    public function testWhenApiServiceLoadingThrowsException(): void
+    {
+        $exception_msg = 'Payplug API can\'t be initialized.';
+        $this->api
+            ->shouldReceive('load')
+            ->once()
+            ->with(self::API_BEARER)
+            ->andThrow(new \Exception($exception_msg));
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage($exception_msg);
+        $this->action->retrieveAction(self::RESOURCE_ID, self::API_BEARER);
+    }
+
+    public function testWhenPaymentResourceCantBeRetrieved(): void
+    {
+        $this->api
+            ->shouldReceive('load')
+            ->once()
+            ->with(self::API_BEARER)
+            ->andReturn($this->api_service);
+
+        $api_return = [
+            'code'     => 404,
+            'message'  => 'Payment not found.',
+            'resource' => null,
+            'result'   => false,
+        ];
+        $this->api_service
+            ->shouldReceive('retrievePaymentResource')
+            ->once()
+            ->with(self::RESOURCE_ID)
+            ->andReturn($api_return);
+
+        $this->assertEquals(
+            PaymentOutputDTOMock::get($api_return),
+            $this->action->retrieveAction(self::RESOURCE_ID, self::API_BEARER)
+        );
+    }
+
+    public function testWhenPaymentOutputDTOIsReturnedWithSuccess(): void
+    {
+        $this->api
+            ->shouldReceive('load')
+            ->once()
+            ->with(self::API_BEARER)
+            ->andReturn($this->api_service);
+
+        $payment = PaymentMock::getStandard(['is_paid' => true]);
+        $api_return = [
+            'code'     => 200,
+            'message'  => 'OK',
+            'resource' => $payment,
+            'result'   => true,
+        ];
+        $this->api_service
+            ->shouldReceive('retrievePaymentResource')
+            ->once()
+            ->with(self::RESOURCE_ID)
+            ->andReturn($api_return);
+
+        $this->assertEquals(
+            PaymentOutputDTOMock::get(['resource' => $payment]),
+            $this->action->retrieveAction(self::RESOURCE_ID, self::API_BEARER)
+        );
+    }
+}