diff --git a/changes.md b/changes.md
index 53dc55e046b..117d08944c9 100644
--- a/changes.md
+++ b/changes.md
@@ -1,8 +1,18 @@
-**Import changes**
+**Api changes**
 
 <details>
-<summary>Removed Type(s)</summary>
+<summary>Added Resource(s)</summary>
 
-- :warning: removed type `ReferencedResourceNotFound`
+- added resource `/{projectKey}/channels/key={key}`
+</details>
+
+
+<details>
+<summary>Added Method(s)</summary>
+
+- added method `$apiRoot->withProjectKey()->channels()->withKey()->get()`
+- added method `$apiRoot->withProjectKey()->channels()->withKey()->head()`
+- added method `$apiRoot->withProjectKey()->channels()->withKey()->post()`
+- added method `$apiRoot->withProjectKey()->channels()->withKey()->delete()`
 </details>
 
diff --git a/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsKeyByKeyTest.php b/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsKeyByKeyTest.php
new file mode 100644
index 00000000000..66f92a88520
--- /dev/null
+++ b/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsKeyByKeyTest.php
@@ -0,0 +1,624 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file has been auto generated
+ * Do not change it.
+ */
+
+namespace Commercetools\Api\Test\Client\Resource;
+
+use Commercetools\Api\Client\ApiRequestBuilder;
+use Commercetools\Base\JsonObject;
+use Commercetools\Client\ApiRequest;
+use Commercetools\Exception\ApiClientException;
+use Commercetools\Exception\ApiServerException;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\ClientException;
+use GuzzleHttp\Exception\ServerException;
+use GuzzleHttp\Psr7\Response;
+use PHPUnit\Framework\TestCase;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * @covers \Commercetools\Api\Client\Resource\ByProjectKeyChannelsKeyByKeyGet
+ * @covers \Commercetools\Api\Client\Resource\ByProjectKeyChannelsKeyByKeyHead
+ * @covers \Commercetools\Api\Client\Resource\ByProjectKeyChannelsKeyByKeyPost
+ * @covers \Commercetools\Api\Client\Resource\ByProjectKeyChannelsKeyByKeyDelete
+ * @covers \Commercetools\Api\Client\Resource\ResourceByProjectKeyChannelsKeyByKey
+ */
+class ResourceByProjectKeyChannelsKeyByKeyTest extends TestCase
+{
+    /**
+     * @dataProvider getRequests()
+     */
+    public function testBuilder(callable $builderFunction, string $method, string $relativeUri, string $body = null)
+    {
+        $builder = new ApiRequestBuilder();
+        $request = $builderFunction($builder);
+        $this->assertSame(strtolower($method), strtolower($request->getMethod()));
+        $this->assertSame($relativeUri, (string) $request->getUri());
+        if (!is_null($body)) {
+            $this->assertJsonStringEqualsJsonString($body, (string) $request->getBody());
+        } else {
+            $this->assertSame("", (string) $request->getBody());
+        }
+    }
+
+
+
+    /**
+     * @dataProvider getRequestBuilderResponses()
+     */
+    public function testMapFromResponse(callable $builderFunction, $statusCode)
+    {
+        $builder = new ApiRequestBuilder();
+        $request = $builderFunction($builder);
+        $this->assertInstanceOf(ApiRequest::class, $request);
+
+        $response = new Response($statusCode, [], "{}");
+        $this->assertInstanceOf(JsonObject::class, $request->mapFromResponse($response));
+    }
+
+    /**
+     * @dataProvider getRequestBuilders()
+     */
+    public function testExecuteClientException(callable $builderFunction)
+    {
+        $client = $this->createMock(ClientInterface::class);
+
+        $builder = new ApiRequestBuilder($client);
+        $request = $builderFunction($builder);
+        $client->method("send")->willThrowException(new ClientException("Oops!", $request, new Response(400)));
+
+        $this->expectException(ApiClientException::class);
+        $request->execute();
+    }
+
+    /**
+     * @dataProvider getRequestBuilders()
+     */
+    public function testExecuteServerException(callable $builderFunction)
+    {
+        $client = $this->createMock(ClientInterface::class);
+
+        $builder = new ApiRequestBuilder($client);
+        $request = $builderFunction($builder);
+        $client->method("send")->willThrowException(new ServerException("Oops!", $request, new Response(500)));
+
+        $this->expectException(ApiServerException::class);
+        $request->execute();
+    }
+
+    public function getRequests()
+    {
+        return [
+            'ByProjectKeyChannelsKeyByKeyGet_withExpand' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey('test_projectKey')
+                        ->channels()
+                        ->withKey('test_key')
+                        ->get()
+                        ->withExpand('expand');
+                },
+                'get',
+                'test_projectKey/channels/key=test_key?expand=expand',
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("test_projectKey")
+                        ->channels()
+                        ->withKey("test_key")
+                        ->get();
+                },
+                'get',
+                'test_projectKey/channels/key=test_key',
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("test_projectKey")
+                        ->channels()
+                        ->withKey("test_key")
+                        ->head();
+                },
+                'head',
+                'test_projectKey/channels/key=test_key',
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_withExpand' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey('test_projectKey')
+                        ->channels()
+                        ->withKey('test_key')
+                        ->post(null)
+                        ->withExpand('expand');
+                },
+                'post',
+                'test_projectKey/channels/key=test_key?expand=expand',
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("test_projectKey")
+                        ->channels()
+                        ->withKey("test_key")
+                        ->post(null);
+                },
+                'post',
+                'test_projectKey/channels/key=test_key',
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_withVersion' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey('test_projectKey')
+                        ->channels()
+                        ->withKey('test_key')
+                        ->delete()
+                        ->withVersion('version');
+                },
+                'delete',
+                'test_projectKey/channels/key=test_key?version=version',
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_withExpand' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey('test_projectKey')
+                        ->channels()
+                        ->withKey('test_key')
+                        ->delete()
+                        ->withExpand('expand');
+                },
+                'delete',
+                'test_projectKey/channels/key=test_key?expand=expand',
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("test_projectKey")
+                        ->channels()
+                        ->withKey("test_key")
+                        ->delete();
+                },
+                'delete',
+                'test_projectKey/channels/key=test_key',
+            ]
+        ];
+    }
+
+    public function getResources()
+    {
+        return [
+        ];
+    }
+
+    public function getRequestBuilders()
+    {
+        return [
+            'ByProjectKeyChannelsKeyByKeyGet' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                }
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                }
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                }
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                }
+            ]
+        ];
+    }
+
+    public function getRequestBuilderResponses()
+    {
+        return [
+            'ByProjectKeyChannelsKeyByKeyGet_200' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                200
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_400' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                400
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_401' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                401
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_403' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                403
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_404' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                404
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_500' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                500
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_502' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                502
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_503' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                503
+            ],
+            'ByProjectKeyChannelsKeyByKeyGet_599' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->get();
+                },
+                599
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_200' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                200
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_404' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                404
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_400' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                400
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_401' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                401
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_403' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                403
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_500' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                500
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_502' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                502
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_503' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                503
+            ],
+            'ByProjectKeyChannelsKeyByKeyHead_599' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->head();
+                },
+                599
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_200' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                200
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_409' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                409
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_400' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                400
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_401' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                401
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_403' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                403
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_404' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                404
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_500' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                500
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_502' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                502
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_503' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                503
+            ],
+            'ByProjectKeyChannelsKeyByKeyPost_599' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->post(null);
+                },
+                599
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_200' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                200
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_409' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                409
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_400' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                400
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_401' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                401
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_403' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                403
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_404' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                404
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_500' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                500
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_502' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                502
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_503' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                503
+            ],
+            'ByProjectKeyChannelsKeyByKeyDelete_599' => [
+                function (ApiRequestBuilder $builder): RequestInterface {
+                    return $builder
+                        ->withProjectKey("projectKey")
+                        ->channels()
+                        ->withKey("key")
+                        ->delete();
+                },
+                599
+            ]
+        ];
+    }
+}
diff --git a/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsTest.php b/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsTest.php
index d0ed4f22223..d2299e19e4a 100644
--- a/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsTest.php
+++ b/lib/commercetools-api-tests/test/unit/Client/Resource/ResourceByProjectKeyChannelsTest.php
@@ -10,6 +10,7 @@
 
 use Commercetools\Api\Client\ApiRequestBuilder;
 use Commercetools\Api\Client\Resource\ResourceByProjectKeyChannelsByID;
+use Commercetools\Api\Client\Resource\ResourceByProjectKeyChannelsKeyByKey;
 use Commercetools\Base\JsonObject;
 use Commercetools\Client\ApiRequest;
 use Commercetools\Exception\ApiClientException;
@@ -247,6 +248,17 @@ function (ApiRequestBuilder $builder): ResourceByProjectKeyChannelsByID {
                 ResourceByProjectKeyChannelsByID::class,
                 ['projectKey' => 'test_projectKey', 'ID' => 'test_ID'],
                 '/{projectKey}/channels/{ID}'
+            ],
+            'ResourceByProjectKeyChannelsKeyByKey' => [
+                function (ApiRequestBuilder $builder): ResourceByProjectKeyChannelsKeyByKey {
+                    return $builder
+                        ->withProjectKey("test_projectKey")
+                        ->channels()
+                        ->withKey("test_key");
+                },
+                ResourceByProjectKeyChannelsKeyByKey::class,
+                ['projectKey' => 'test_projectKey', 'key' => 'test_key'],
+                '/{projectKey}/channels/key={key}'
             ]
         ];
     }
diff --git a/lib/commercetools-api/docs/RequestBuilder.md b/lib/commercetools-api/docs/RequestBuilder.md
index a66c4a878b7..4367e1577f9 100644
--- a/lib/commercetools-api/docs/RequestBuilder.md
+++ b/lib/commercetools-api/docs/RequestBuilder.md
@@ -2346,6 +2346,67 @@ $request = $builder
                 ->withId("ID")
                 ->delete();
 ```
+## `withProjectKey("projectKey")->channels()->withKey("key")->get()`
+
+null
+
+### Example
+```php
+use Commercetools\Api\Client\ApiRequestBuilder;
+
+$builder =  new ApiRequestBuilder();
+$request = $builder
+                ->withProjectKey("projectKey")
+                ->channels()
+                ->withKey("key")
+                ->get();
+```
+## `withProjectKey("projectKey")->channels()->withKey("key")->head()`
+
+Checks if a Channel exists for a given `key`. Returns a `200 OK` status if the Channel exists or a `404 Not Found` otherwise.
+
+### Example
+```php
+use Commercetools\Api\Client\ApiRequestBuilder;
+
+$builder =  new ApiRequestBuilder();
+$request = $builder
+                ->withProjectKey("projectKey")
+                ->channels()
+                ->withKey("key")
+                ->head();
+```
+## `withProjectKey("projectKey")->channels()->withKey("key")->post(null)`
+
+null
+
+### Example
+```php
+use Commercetools\Api\Client\ApiRequestBuilder;
+
+$builder =  new ApiRequestBuilder();
+$request = $builder
+                ->withProjectKey("projectKey")
+                ->channels()
+                ->withKey("key")
+                ->post(null);
+```
+## `withProjectKey("projectKey")->channels()->withKey("key")->delete()`
+
+Returns a [ReferenceExists](ctp:api:type:ReferenceExistsError) error if other resources reference the Channel to be deleted.
+
+
+### Example
+```php
+use Commercetools\Api\Client\ApiRequestBuilder;
+
+$builder =  new ApiRequestBuilder();
+$request = $builder
+                ->withProjectKey("projectKey")
+                ->channels()
+                ->withKey("key")
+                ->delete();
+```
 ## `withProjectKey("projectKey")->customObjects()->get()`
 
 For performance reasons, it is highly advisable to query for Custom Objects in a container by using the `container` field in the `where` predicate.
diff --git a/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyDelete.php b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyDelete.php
new file mode 100644
index 00000000000..87b1c1b4a9d
--- /dev/null
+++ b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyDelete.php
@@ -0,0 +1,170 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file has been auto generated
+ * Do not change it.
+ */
+
+namespace Commercetools\Api\Client\Resource;
+
+use Commercetools\Api\Models\Channel\Channel;
+use Commercetools\Api\Models\Channel\ChannelModel;
+use Commercetools\Api\Models\Error\ErrorResponse;
+use Commercetools\Api\Models\Error\ErrorResponseModel;
+use Commercetools\Base\JsonObject;
+use Commercetools\Base\JsonObjectModel;
+use Commercetools\Client\ApiRequest;
+use Commercetools\Exception\ApiClientException;
+use Commercetools\Exception\ApiServerException;
+use Commercetools\Exception\ExceptionFactory;
+use Commercetools\Exception\InvalidArgumentException;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\ClientException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ServerException;
+use GuzzleHttp\Promise\PromiseInterface;
+
+use Psr\Http\Message\ResponseInterface;
+
+/**
+
+ * @psalm-suppress PropertyNotSetInConstructor
+ * @template-implements Versioned<ByProjectKeyChannelsKeyByKeyDelete>
+ * @template-implements Conflicting<ByProjectKeyChannelsKeyByKeyDelete>
+ * @template-implements Expandable<ByProjectKeyChannelsKeyByKeyDelete>
+ * @template-implements Errorable<ByProjectKeyChannelsKeyByKeyDelete>
+ * @template-implements Deprecatable200<ByProjectKeyChannelsKeyByKeyDelete>
+ */
+class ByProjectKeyChannelsKeyByKeyDelete extends ApiRequest implements Versioned, Conflicting, Expandable, Errorable, Deprecatable200
+{
+    /**
+     * @param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function __construct(string $projectKey, string $key, $body = null, array $headers = [], ClientInterface $client = null)
+    {
+        $uri = str_replace(['{projectKey}', '{key}'], [$projectKey, $key], '{projectKey}/channels/key={key}');
+        parent::__construct($client, 'DELETE', $uri, $headers, is_object($body) || is_array($body) ? json_encode($body) : $body);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     * @return Channel|ErrorResponse|JsonObject|T|null
+     */
+    public function mapFromResponse(?ResponseInterface $response, string $resultType = null)
+    {
+        if (is_null($response)) {
+            return null;
+        }
+        if (is_null($resultType)) {
+            switch ($response->getStatusCode()) {
+                case '200':
+                    $resultType = ChannelModel::class;
+
+                    break;
+                case '409':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '400':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '401':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '403':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '500':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '502':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '503':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                default:
+                    $resultType = JsonObjectModel::class;
+
+                    break;
+            }
+        }
+
+        return $resultType::of($this->responseData($response));
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return null|T|Channel|ErrorResponse|JsonObject
+     */
+    public function execute(array $options = [], string $resultType = null)
+    {
+        try {
+            $response = $this->send($options);
+        } catch (ServerException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        } catch (ClientException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        }
+
+        return $this->mapFromResponse($response, $resultType);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return PromiseInterface
+     */
+    public function executeAsync(array $options = [], string $resultType = null)
+    {
+        return $this->sendAsync($options)->then(
+            function (ResponseInterface $response) use ($resultType) {
+                return $this->mapFromResponse($response, $resultType);
+            },
+            function (RequestException $e) use ($resultType) {
+                $response = $e->getResponse();
+                if ($e instanceof ServerException) {
+                    $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                if ($e instanceof ClientException) {
+                    $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                throw $e;
+            }
+        );
+    }
+
+    /**
+     *
+     * @psalm-param scalar|scalar[] $version
+     */
+    public function withVersion($version): ByProjectKeyChannelsKeyByKeyDelete
+    {
+        return $this->withQueryParam('version', $version);
+    }
+
+    /**
+     *
+     * @psalm-param scalar|scalar[] $expand
+     */
+    public function withExpand($expand): ByProjectKeyChannelsKeyByKeyDelete
+    {
+        return $this->withQueryParam('expand', $expand);
+    }
+}
diff --git a/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyGet.php b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyGet.php
new file mode 100644
index 00000000000..c3a4f8b81f1
--- /dev/null
+++ b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyGet.php
@@ -0,0 +1,155 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file has been auto generated
+ * Do not change it.
+ */
+
+namespace Commercetools\Api\Client\Resource;
+
+use Commercetools\Api\Models\Channel\Channel;
+use Commercetools\Api\Models\Channel\ChannelModel;
+use Commercetools\Api\Models\Error\ErrorResponse;
+use Commercetools\Api\Models\Error\ErrorResponseModel;
+use Commercetools\Base\JsonObject;
+use Commercetools\Base\JsonObjectModel;
+use Commercetools\Client\ApiRequest;
+use Commercetools\Exception\ApiClientException;
+use Commercetools\Exception\ApiServerException;
+use Commercetools\Exception\ExceptionFactory;
+use Commercetools\Exception\InvalidArgumentException;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\ClientException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ServerException;
+use GuzzleHttp\Promise\PromiseInterface;
+
+use Psr\Http\Message\ResponseInterface;
+
+/**
+
+ * @psalm-suppress PropertyNotSetInConstructor
+ * @template-implements Expandable<ByProjectKeyChannelsKeyByKeyGet>
+ * @template-implements Errorable<ByProjectKeyChannelsKeyByKeyGet>
+ * @template-implements Deprecatable200<ByProjectKeyChannelsKeyByKeyGet>
+ */
+class ByProjectKeyChannelsKeyByKeyGet extends ApiRequest implements Expandable, Errorable, Deprecatable200
+{
+    /**
+     * @param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function __construct(string $projectKey, string $key, $body = null, array $headers = [], ClientInterface $client = null)
+    {
+        $uri = str_replace(['{projectKey}', '{key}'], [$projectKey, $key], '{projectKey}/channels/key={key}');
+        parent::__construct($client, 'GET', $uri, $headers, is_object($body) || is_array($body) ? json_encode($body) : $body);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     * @return Channel|ErrorResponse|JsonObject|T|null
+     */
+    public function mapFromResponse(?ResponseInterface $response, string $resultType = null)
+    {
+        if (is_null($response)) {
+            return null;
+        }
+        if (is_null($resultType)) {
+            switch ($response->getStatusCode()) {
+                case '200':
+                    $resultType = ChannelModel::class;
+
+                    break;
+                case '400':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '401':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '403':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '500':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '502':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '503':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                default:
+                    $resultType = JsonObjectModel::class;
+
+                    break;
+            }
+        }
+
+        return $resultType::of($this->responseData($response));
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return null|T|Channel|ErrorResponse|JsonObject
+     */
+    public function execute(array $options = [], string $resultType = null)
+    {
+        try {
+            $response = $this->send($options);
+        } catch (ServerException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        } catch (ClientException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        }
+
+        return $this->mapFromResponse($response, $resultType);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return PromiseInterface
+     */
+    public function executeAsync(array $options = [], string $resultType = null)
+    {
+        return $this->sendAsync($options)->then(
+            function (ResponseInterface $response) use ($resultType) {
+                return $this->mapFromResponse($response, $resultType);
+            },
+            function (RequestException $e) use ($resultType) {
+                $response = $e->getResponse();
+                if ($e instanceof ServerException) {
+                    $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                if ($e instanceof ClientException) {
+                    $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                throw $e;
+            }
+        );
+    }
+
+    /**
+     *
+     * @psalm-param scalar|scalar[] $expand
+     */
+    public function withExpand($expand): ByProjectKeyChannelsKeyByKeyGet
+    {
+        return $this->withQueryParam('expand', $expand);
+    }
+}
diff --git a/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyHead.php b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyHead.php
new file mode 100644
index 00000000000..82640f180aa
--- /dev/null
+++ b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyHead.php
@@ -0,0 +1,139 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file has been auto generated
+ * Do not change it.
+ */
+
+namespace Commercetools\Api\Client\Resource;
+
+use Commercetools\Api\Models\Error\ErrorResponse;
+use Commercetools\Api\Models\Error\ErrorResponseModel;
+use Commercetools\Base\JsonObject;
+use Commercetools\Base\JsonObjectModel;
+use Commercetools\Client\ApiRequest;
+use Commercetools\Exception\ApiClientException;
+use Commercetools\Exception\ApiServerException;
+use Commercetools\Exception\ExceptionFactory;
+use Commercetools\Exception\InvalidArgumentException;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\ClientException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ServerException;
+use GuzzleHttp\Promise\PromiseInterface;
+
+use Psr\Http\Message\ResponseInterface;
+
+/**
+
+ * @psalm-suppress PropertyNotSetInConstructor
+ * @template-implements Errorable<ByProjectKeyChannelsKeyByKeyHead>
+ * @template-implements Deprecatable200<ByProjectKeyChannelsKeyByKeyHead>
+ */
+class ByProjectKeyChannelsKeyByKeyHead extends ApiRequest implements Errorable, Deprecatable200
+{
+    /**
+     * @param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function __construct(string $projectKey, string $key, $body = null, array $headers = [], ClientInterface $client = null)
+    {
+        $uri = str_replace(['{projectKey}', '{key}'], [$projectKey, $key], '{projectKey}/channels/key={key}');
+        parent::__construct($client, 'HEAD', $uri, $headers, is_object($body) || is_array($body) ? json_encode($body) : $body);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     * @return ErrorResponse|JsonObject|T|null
+     */
+    public function mapFromResponse(?ResponseInterface $response, string $resultType = null)
+    {
+        if (is_null($response)) {
+            return null;
+        }
+        if (is_null($resultType)) {
+            switch ($response->getStatusCode()) {
+                case '400':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '401':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '403':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '500':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '502':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '503':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                default:
+                    $resultType = JsonObjectModel::class;
+
+                    break;
+            }
+        }
+
+        return $resultType::of($this->responseData($response));
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return null|T|ErrorResponse|JsonObject
+     */
+    public function execute(array $options = [], string $resultType = null)
+    {
+        try {
+            $response = $this->send($options);
+        } catch (ServerException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        } catch (ClientException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        }
+
+        return $this->mapFromResponse($response, $resultType);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return PromiseInterface
+     */
+    public function executeAsync(array $options = [], string $resultType = null)
+    {
+        return $this->sendAsync($options)->then(
+            function (ResponseInterface $response) use ($resultType) {
+                return $this->mapFromResponse($response, $resultType);
+            },
+            function (RequestException $e) use ($resultType) {
+                $response = $e->getResponse();
+                if ($e instanceof ServerException) {
+                    $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                if ($e instanceof ClientException) {
+                    $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                throw $e;
+            }
+        );
+    }
+}
diff --git a/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyPost.php b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyPost.php
new file mode 100644
index 00000000000..3922a047ff7
--- /dev/null
+++ b/lib/commercetools-api/src/Client/Resource/ByProjectKeyChannelsKeyByKeyPost.php
@@ -0,0 +1,160 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file has been auto generated
+ * Do not change it.
+ */
+
+namespace Commercetools\Api\Client\Resource;
+
+use Commercetools\Api\Models\Channel\Channel;
+use Commercetools\Api\Models\Channel\ChannelModel;
+use Commercetools\Api\Models\Error\ErrorResponse;
+use Commercetools\Api\Models\Error\ErrorResponseModel;
+use Commercetools\Base\JsonObject;
+use Commercetools\Base\JsonObjectModel;
+use Commercetools\Client\ApiRequest;
+use Commercetools\Exception\ApiClientException;
+use Commercetools\Exception\ApiServerException;
+use Commercetools\Exception\ExceptionFactory;
+use Commercetools\Exception\InvalidArgumentException;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\ClientException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ServerException;
+use GuzzleHttp\Promise\PromiseInterface;
+
+use Psr\Http\Message\ResponseInterface;
+
+/**
+
+ * @psalm-suppress PropertyNotSetInConstructor
+ * @template-implements Conflicting<ByProjectKeyChannelsKeyByKeyPost>
+ * @template-implements Expandable<ByProjectKeyChannelsKeyByKeyPost>
+ * @template-implements Deprecatable200<ByProjectKeyChannelsKeyByKeyPost>
+ * @template-implements Errorable<ByProjectKeyChannelsKeyByKeyPost>
+ */
+class ByProjectKeyChannelsKeyByKeyPost extends ApiRequest implements Conflicting, Expandable, Deprecatable200, Errorable
+{
+    /**
+     * @param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function __construct(string $projectKey, string $key, $body = null, array $headers = [], ClientInterface $client = null)
+    {
+        $uri = str_replace(['{projectKey}', '{key}'], [$projectKey, $key], '{projectKey}/channels/key={key}');
+        parent::__construct($client, 'POST', $uri, $headers, is_object($body) || is_array($body) ? json_encode($body) : $body);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     * @return Channel|ErrorResponse|JsonObject|T|null
+     */
+    public function mapFromResponse(?ResponseInterface $response, string $resultType = null)
+    {
+        if (is_null($response)) {
+            return null;
+        }
+        if (is_null($resultType)) {
+            switch ($response->getStatusCode()) {
+                case '200':
+                    $resultType = ChannelModel::class;
+
+                    break;
+                case '409':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '400':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '401':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '403':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '500':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '502':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                case '503':
+                    $resultType = ErrorResponseModel::class;
+
+                    break;
+                default:
+                    $resultType = JsonObjectModel::class;
+
+                    break;
+            }
+        }
+
+        return $resultType::of($this->responseData($response));
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return null|T|Channel|ErrorResponse|JsonObject
+     */
+    public function execute(array $options = [], string $resultType = null)
+    {
+        try {
+            $response = $this->send($options);
+        } catch (ServerException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        } catch (ClientException $e) {
+            $response = $e->getResponse();
+            $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+            throw $e;
+        }
+
+        return $this->mapFromResponse($response, $resultType);
+    }
+
+    /**
+     * @template T of JsonObject
+     * @psalm-param ?class-string<T> $resultType
+     *
+     * @return PromiseInterface
+     */
+    public function executeAsync(array $options = [], string $resultType = null)
+    {
+        return $this->sendAsync($options)->then(
+            function (ResponseInterface $response) use ($resultType) {
+                return $this->mapFromResponse($response, $resultType);
+            },
+            function (RequestException $e) use ($resultType) {
+                $response = $e->getResponse();
+                if ($e instanceof ServerException) {
+                    $e = ExceptionFactory::createServerException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                if ($e instanceof ClientException) {
+                    $e = ExceptionFactory::createClientException($e, $this, $response, $this->mapFromResponse($response, $resultType));
+                }
+                throw $e;
+            }
+        );
+    }
+
+    /**
+     *
+     * @psalm-param scalar|scalar[] $expand
+     */
+    public function withExpand($expand): ByProjectKeyChannelsKeyByKeyPost
+    {
+        return $this->withQueryParam('expand', $expand);
+    }
+}
diff --git a/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannels.php b/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannels.php
index 87a7b085e70..f3753482407 100644
--- a/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannels.php
+++ b/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannels.php
@@ -37,6 +37,17 @@ public function withId(string $ID = null): ResourceByProjectKeyChannelsByID
 
         return new ResourceByProjectKeyChannelsByID($args, $this->getClient());
     }
+    /**
+     */
+    public function withKey(string $key = null): ResourceByProjectKeyChannelsKeyByKey
+    {
+        $args = $this->getArgs();
+        if (!is_null($key)) {
+            $args['key'] = $key;
+        }
+
+        return new ResourceByProjectKeyChannelsKeyByKey($args, $this->getClient());
+    }
 
     /**
      * @psalm-param ?object|array|string $body
diff --git a/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannelsKeyByKey.php b/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannelsKeyByKey.php
new file mode 100644
index 00000000000..adcfe5654fe
--- /dev/null
+++ b/lib/commercetools-api/src/Client/Resource/ResourceByProjectKeyChannelsKeyByKey.php
@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file has been auto generated
+ * Do not change it.
+ */
+
+namespace Commercetools\Api\Client\Resource;
+
+use Commercetools\Api\Models\Channel\ChannelUpdate;
+use Commercetools\Client\ApiResource;
+use GuzzleHttp\ClientInterface;
+use Psr\Http\Message\UploadedFileInterface;
+
+/**
+ * @psalm-suppress PropertyNotSetInConstructor
+ */
+class ResourceByProjectKeyChannelsKeyByKey extends ApiResource
+{
+    /**
+     * @psalm-param array<string, string> $args
+     */
+    public function __construct(array $args = [], ClientInterface $client = null)
+    {
+        parent::__construct('/{projectKey}/channels/key={key}', $args, $client);
+    }
+
+    /**
+     * @psalm-param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function get($body = null, array $headers = []): ByProjectKeyChannelsKeyByKeyGet
+    {
+        $args = $this->getArgs();
+
+        return new ByProjectKeyChannelsKeyByKeyGet($args['projectKey'], $args['key'], $body, $headers, $this->getClient());
+    }
+    /**
+     * @psalm-param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function head($body = null, array $headers = []): ByProjectKeyChannelsKeyByKeyHead
+    {
+        $args = $this->getArgs();
+
+        return new ByProjectKeyChannelsKeyByKeyHead($args['projectKey'], $args['key'], $body, $headers, $this->getClient());
+    }
+    /**
+     * @psalm-param ?ChannelUpdate $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function post(?ChannelUpdate $body = null, array $headers = []): ByProjectKeyChannelsKeyByKeyPost
+    {
+        $args = $this->getArgs();
+
+        return new ByProjectKeyChannelsKeyByKeyPost($args['projectKey'], $args['key'], $body, $headers, $this->getClient());
+    }
+    /**
+     * @psalm-param ?object|array|string $body
+     * @psalm-param array<string, scalar|scalar[]> $headers
+     */
+    public function delete($body = null, array $headers = []): ByProjectKeyChannelsKeyByKeyDelete
+    {
+        $args = $this->getArgs();
+
+        return new ByProjectKeyChannelsKeyByKeyDelete($args['projectKey'], $args['key'], $body, $headers, $this->getClient());
+    }
+}
diff --git a/references.txt b/references.txt
index 24b8c86b760..6e159582a90 100644
--- a/references.txt
+++ b/references.txt
@@ -333,3 +333,4 @@ df53588d26d7953dfdf44166866ca03045f0a70b
 6b69c5425fe16564147deb9b1d6a9a1078dc5330
 99e7aa1c7e3ba67a59b6df3efbaf4e320611c549
 269027575a6fd5a2a29387930064a06f22f09bbf
+9c2f053d7f45e95984760f59a344e9630d90d843