diff --git a/README.md b/README.md
index 3241d16..ac2ddd1 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ A simple validation.
 Through [Composer](http://getcomposer.org) as [chubbyphp/chubbyphp-validation][1].
 
 ```sh
-composer require chubbyphp/chubbyphp-validation "^3.6"
+composer require chubbyphp/chubbyphp-validation "^3.7"
 ```
 
 ## Usage
@@ -69,19 +69,20 @@ composer require chubbyphp/chubbyphp-validation "^3.6"
 
 ### Error
 
- * [Error][4]
- * [ErrorMessages][5]
- * [NestedErrorMessages][6]
+ * [ApiProblemErrorMessages][4]
+ * [Error][5]
+ * [ErrorMessages][6]
+ * [NestedErrorMessages][7]
 
 ### Mapping
 
- * [CallableValidationMappingProvider][7]
- * [LazyValidationMappingProvider][8]
- * [ValidationClassMapping][9]
- * [ValidationClassMappingBuilder][10]
- * [ValidationMappingProviderRegistry][11]
- * [ValidationPropertyMapping][12]
- * [ValidationPropertyMappingBuilder][13]
+ * [CallableValidationMappingProvider][8]
+ * [LazyValidationMappingProvider][9]
+ * [ValidationClassMapping][10]
+ * [ValidationClassMappingBuilder][11]
+ * [ValidationMappingProviderRegistry][12]
+ * [ValidationPropertyMapping][13]
+ * [ValidationPropertyMappingBuilder][14]
 
 #### ValidationMappingProvider
 
@@ -158,16 +159,16 @@ final class ModelValidationMappingProvider implements ValidationMappingProviderI
 
 ### ServiceFactory
 
- * [ValidationServiceFactory][14]
+ * [ValidationServiceFactory][15]
 
 ### ServiceProvider
 
- * [ValidationServiceProvider][15]
+ * [ValidationServiceProvider][16]
 
 ### Validator
 
- * [ValidatorContext][16]
- * [ValidatorContextBuilder][17]
+ * [ValidatorContext][17]
+ * [ValidatorContextBuilder][18]
 
 ```php
 <?php
@@ -234,20 +235,21 @@ Dominik Zogg 2018
 
 [121]: doc/Constraint/Symfony/ConstraintAdapter.md
 
-[4]: doc/Error/Error.md
-[5]: doc/Error/ErrorMessages.md
-[6]: doc/Error/NestedErrorMessages.md
+[4]: doc/Error/ApiProblemErrorMessages.md
+[5]: doc/Error/Error.md
+[6]: doc/Error/ErrorMessages.md
+[7]: doc/Error/NestedErrorMessages.md
 
-[7]: doc/Mapping/CallableValidationMappingProvider.md
-[8]: doc/Mapping/LazyValidationMappingProvider.md
-[9]: doc/Mapping/ValidationClassMapping.md
-[10]: doc/Mapping/ValidationClassMappingBuilder.md
-[11]: doc/Mapping/ValidationMappingProviderRegistry.md
-[12]: doc/Mapping/ValidationPropertyMapping.md
-[13]: doc/Mapping/ValidationPropertyMappingBuilder.md
+[8]: doc/Mapping/CallableValidationMappingProvider.md
+[9]: doc/Mapping/LazyValidationMappingProvider.md
+[10]: doc/Mapping/ValidationClassMapping.md
+[11]: doc/Mapping/ValidationClassMappingBuilder.md
+[12]: doc/Mapping/ValidationMappingProviderRegistry.md
+[13]: doc/Mapping/ValidationPropertyMapping.md
+[14]: doc/Mapping/ValidationPropertyMappingBuilder.md
 
-[14]: doc/ServiceFactory/ValidationServiceFactory.md
-[15]: doc/ServiceProvider/ValidationServiceProvider.md
+[15]: doc/ServiceFactory/ValidationServiceFactory.md
+[16]: doc/ServiceProvider/ValidationServiceProvider.md
 
-[16]: doc/ValidatorContext.md
-[17]: doc/ValidatorContextBuilder.md
+[17]: doc/ValidatorContext.md
+[18]: doc/ValidatorContextBuilder.md
diff --git a/composer.json b/composer.json
index 9451a0a..26e4d69 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.6-dev"
+            "dev-master": "3.7-dev"
         }
     },
     "scripts": {
diff --git a/doc/Error/ApiProblemErrorMessages.md b/doc/Error/ApiProblemErrorMessages.md
new file mode 100644
index 0000000..422e11f
--- /dev/null
+++ b/doc/Error/ApiProblemErrorMessages.md
@@ -0,0 +1,25 @@
+# ApiProblemErrorMessages
+
+```php
+<?php
+
+use Chubbyphp\Validation\Error\Error;
+use Chubbyphp\Validation\Error\ApiProblemErrorMessages;
+
+$error = new Error(
+    'path.to.property',
+    'constraint.constraint.invalidtype',
+    ['type' => 'array']
+);
+
+$errorMessages = new ApiProblemErrorMessages([$error]);
+
+$errorMessages->getMessages();
+// [
+//     [
+//         'name' => 'path.to.property',
+//         'reason' => 'constraint.constraint.invalidtype',
+//         'details' => ['type' => 'array'],
+//     ],
+// ]
+```
diff --git a/src/Error/ApiProblemErrorMessages.php b/src/Error/ApiProblemErrorMessages.php
new file mode 100644
index 0000000..93fc51b
--- /dev/null
+++ b/src/Error/ApiProblemErrorMessages.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Chubbyphp\Validation\Error;
+
+final class ApiProblemErrorMessages implements ErrorMessagesInterface
+{
+    /**
+     * @var array<ErrorInterface>
+     */
+    private $errors;
+
+    /**
+     * @var array<int, array<string, string|array>>
+     */
+    private $errorMessages;
+
+    /**
+     * @param array<ErrorInterface> $errors
+     */
+    public function __construct(array $errors)
+    {
+        $this->errors = [];
+        foreach ($errors as $error) {
+            $this->addError($error);
+        }
+    }
+
+    /**
+     * @return array<int, array<string, string|array>>
+     */
+    public function getMessages(): array
+    {
+        if (null === $this->errorMessages) {
+            $this->errorMessages = [];
+            foreach ($this->errors as $error) {
+                $this->errorMessages[] = [
+                    'name' => $error->getPath(),
+                    'reason' => $error->getKey(),
+                    'details' => $error->getArguments(),
+                ];
+            }
+        }
+
+        return $this->errorMessages;
+    }
+
+    private function addError(ErrorInterface $error): void
+    {
+        $this->errors[] = $error;
+    }
+}
diff --git a/tests/Unit/Error/ApiProblemErrorMessagesTest.php b/tests/Unit/Error/ApiProblemErrorMessagesTest.php
new file mode 100644
index 0000000..f6a71ab
--- /dev/null
+++ b/tests/Unit/Error/ApiProblemErrorMessagesTest.php
@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Chubbyphp\Tests\Validation\Unit\Error;
+
+use Chubbyphp\Mock\Call;
+use Chubbyphp\Mock\MockByCallsTrait;
+use Chubbyphp\Validation\Error\ApiProblemErrorMessages;
+use Chubbyphp\Validation\Error\ErrorInterface;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \Chubbyphp\Validation\Error\ApiProblemErrorMessages
+ *
+ * @internal
+ */
+final class ApiProblemErrorMessagesTest extends TestCase
+{
+    use MockByCallsTrait;
+
+    public function testWithoutMessages(): void
+    {
+        $errorMessages = new ApiProblemErrorMessages([]);
+
+        self::assertEquals([], $errorMessages->getMessages());
+    }
+
+    public function testWithMessages(): void
+    {
+        $errors = [
+            $this->getError('collection[_all]', 'constraint.collection.all'),
+            $this->getError('collection[0].field1', 'constraint.collection0.constraint1', ['key' => 'value']),
+            $this->getError('collection[0].field1', 'constraint.collection0.constraint2'),
+            $this->getError('collection[1].field1', 'constraint.collection1.constraint1'),
+            $this->getError('collection[1].field1', 'constraint.collection1.constraint2'),
+        ];
+
+        $errorMessages = new ApiProblemErrorMessages($errors);
+
+        self::assertEquals([
+            [
+                'name' => 'collection[_all]',
+                'reason' => 'constraint.collection.all',
+                'details' => [],
+            ],
+            [
+                'name' => 'collection[0].field1',
+                'reason' => 'constraint.collection0.constraint1',
+                'details' => ['key' => 'value'],
+            ],
+            [
+                'name' => 'collection[0].field1',
+                'reason' => 'constraint.collection0.constraint2',
+                'details' => [],
+            ],
+            [
+                'name' => 'collection[1].field1',
+                'reason' => 'constraint.collection1.constraint1',
+                'details' => [],
+            ],
+            [
+                'name' => 'collection[1].field1',
+                'reason' => 'constraint.collection1.constraint2',
+                'details' => [],
+            ],
+        ], $errorMessages->getMessages());
+    }
+
+    private function getError(string $path, string $key, array $arguments = []): ErrorInterface
+    {
+        /* @var ErrorInterface|MockObject $error */
+        return $this->getMockByCalls(ErrorInterface::class, [
+            Call::create('getPath')->with()->willReturn($path),
+            Call::create('getKey')->with()->willReturn($key),
+            Call::create('getArguments')->with()->willReturn($arguments),
+        ]);
+    }
+}