diff --git a/README.md b/README.md
index 88b8c40..2ab0617 100644
--- a/README.md
+++ b/README.md
@@ -41,4 +41,65 @@ try {
 } catch (Exception $e) {
     echo "Error: " . $e->getMessage();
 }
+```
+
+### Managing Channels
+
+All channel methods return an array with the decoded JSON response from the API. On failure, a `RuntimeException` is thrown.
+
+#### List channels
+
+```php
+$channels = $client->listChannels();
+// $channels['data'] — array of channel objects
+```
+
+#### Create a channel
+
+```php
+$channel = $client->createChannel(
+    name: 'My Channel',
+    description: 'Optional description',  // optional
+);
+// $channel['data'] — created channel object
+```
+
+#### Get a channel
+
+```php
+$channel = $client->getChannel('PUSHINATOR_CHANNEL_ID');
+// $channel['data'] — channel object
+```
+
+#### Update a channel
+
+```php
+$channel = $client->updateChannel(
+    channelId: 'PUSHINATOR_CHANNEL_ID',
+    name: 'Updated Name',
+    description: 'Updated description',   // optional
+);
+// $channel['data'] — updated channel object
+```
+
+#### Delete a channel
+
+```php
+$channel = $client->deleteChannel('PUSHINATOR_CHANNEL_ID');
+// $channel['data'] — deleted channel object
+```
+
+#### Channel object structure
+
+```json
+{
+  "data": {
+    "id": "channel-id",
+    "name": "My Channel",
+    "description": "Optional description",
+    "acknowledgment_enabled": false,
+    "created_at": "2024-01-01T00:00:00.000000Z",
+    "updated_at": "2024-01-01T00:00:00.000000Z"
+  }
+}
 ```
\ No newline at end of file
diff --git a/src/PushinatorClient.php b/src/PushinatorClient.php
index f228970..6adc5cc 100644
--- a/src/PushinatorClient.php
+++ b/src/PushinatorClient.php
@@ -64,4 +64,114 @@ public function sendNotification(string $channelId, string $notification): void
             );
         }
     }
+
+    /**
+     * List all channels.
+     *
+     * @return array
+     */
+    public function listChannels(): array
+    {
+        return $this->request('GET', '/api/v2/channels');
+    }
+
+    /**
+     * Create a new channel.
+     *
+     * @param string $name
+     * @param string|null $description
+     * @param bool|null $acknowledgmentEnabled
+     * @return array
+     */
+    public function createChannel(string $name, ?string $description = null, ?bool $acknowledgmentEnabled = null): array
+    {
+        $body = ['name' => $name];
+
+        if ($description !== null) {
+            $body['description'] = $description;
+        }
+
+        return $this->request('POST', '/api/v2/channels', $body);
+    }
+
+    /**
+     * Get a channel by ID.
+     *
+     * @param string $channelId
+     * @return array
+     */
+    public function getChannel(string $channelId): array
+    {
+        return $this->request('GET', "/api/v2/channels/{$channelId}");
+    }
+
+    /**
+     * Update a channel by ID.
+     *
+     * @param string $channelId
+     * @param string $name
+     * @param string|null $description
+     * @param bool|null $acknowledgmentEnabled
+     * @return array
+     */
+    public function updateChannel(string $channelId, string $name, ?string $description = null, ?bool $acknowledgmentEnabled = null): array
+    {
+        $body = ['name' => $name];
+
+        if ($description !== null) {
+            $body['description'] = $description;
+        }
+
+        return $this->request('PUT', "/api/v2/channels/{$channelId}", $body);
+    }
+
+    /**
+     * Delete a channel by ID.
+     *
+     * @param string $channelId
+     * @return array
+     */
+    public function deleteChannel(string $channelId): array
+    {
+        return $this->request('DELETE', "/api/v2/channels/{$channelId}");
+    }
+
+    /**
+     * @param string $method
+     * @param string $path
+     * @param array $body
+     * @return array
+     */
+    private function request(string $method, string $path, array $body = []): array
+    {
+        try {
+            $options = [
+                'headers' => [
+                    'Authorization' => "Bearer {$this->apiToken}",
+                    'Content-Type' => 'application/json',
+                    'User-Agent' => self::$userAgent,
+                ],
+            ];
+
+            if (!empty($body)) {
+                $options['json'] = $body;
+            }
+
+            $response = $this->client->request($method, self::$baseUrl . $path, $options);
+
+            if ($response->getStatusCode() !== 200) {
+                throw new \RuntimeException(
+                    "Request failed. Status: {$response->getStatusCode()}, Body: {$response->getBody()}"
+                );
+            }
+
+            return json_decode($response->getBody()->getContents(), true);
+        } catch (GuzzleException $e) {
+            throw new \RuntimeException(
+                "Request failed: {$e->getMessage()}",
+                $e->getCode(),
+                $e
+            );
+        }
+    }
 }
diff --git a/tests/ChannelsTest.php b/tests/ChannelsTest.php
new file mode 100644
index 0000000..9841abb
--- /dev/null
+++ b/tests/ChannelsTest.php
@@ -0,0 +1,251 @@
+<?php
+
+namespace Tests\Pushinator;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Middleware;
+use GuzzleHttp\Psr7\Response;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+use Pushinator\PushinatorClient;
+
+#[CoversClass(\Pushinator\PushinatorClient::class)]
+class ChannelsTest extends TestCase
+{
+    private function makeClient(array $responses, array &$container = []): PushinatorClient
+    {
+        $history = Middleware::history($container);
+        $mock = new MockHandler($responses);
+        $handlerStack = HandlerStack::create($mock);
+        $handlerStack->push($history);
+
+        return new PushinatorClient('test-token', new Client(['handler' => $handlerStack]));
+    }
+
+    private function channelResponse(array $overrides = []): array
+    {
+        return array_merge([
+            'id' => 'channel-123',
+            'name' => 'Test Channel',
+            'description' => 'A test channel',
+            'acknowledgment_enabled' => false,
+            'created_at' => '2024-01-01T00:00:00.000000Z',
+            'updated_at' => '2024-01-01T00:00:00.000000Z',
+        ], $overrides);
+    }
+
+    // -------------------------------------------------------------------------
+    // listChannels
+    // -------------------------------------------------------------------------
+
+    #[Test]
+    public function testListChannelsRequest()
+    {
+        $container = [];
+        $responseData = ['data' => [$this->channelResponse()]];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode($responseData))],
+            $container
+        );
+
+        $result = $pushinator->listChannels();
+
+        $request = $container[0]['request'];
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('https://api.pushinator.com/api/v2/channels', $request->getUri());
+        $this->assertEquals('Bearer test-token', $request->getHeaderLine('Authorization'));
+        $this->assertEquals('application/json', $request->getHeaderLine('Content-Type'));
+        $this->assertEquals('pushinator-php/1.0', $request->getHeaderLine('User-Agent'));
+        $this->assertEquals($responseData, $result);
+    }
+
+    #[Test]
+    public function testListChannelsFailure()
+    {
+        $pushinator = $this->makeClient([new Response(500)]);
+
+        $this->expectException(\RuntimeException::class);
+        $pushinator->listChannels();
+    }
+
+    // -------------------------------------------------------------------------
+    // createChannel
+    // -------------------------------------------------------------------------
+
+    #[Test]
+    public function testCreateChannelRequest()
+    {
+        $container = [];
+        $responseData = ['data' => $this->channelResponse()];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode($responseData))],
+            $container
+        );
+
+        $result = $pushinator->createChannel('Test Channel', 'A test channel', true);
+
+        $request = $container[0]['request'];
+        $this->assertEquals('POST', $request->getMethod());
+        $this->assertEquals('https://api.pushinator.com/api/v2/channels', $request->getUri());
+        $this->assertEquals('Bearer test-token', $request->getHeaderLine('Authorization'));
+        $this->assertEquals('application/json', $request->getHeaderLine('Content-Type'));
+        $this->assertEquals('pushinator-php/1.0', $request->getHeaderLine('User-Agent'));
+        $this->assertEquals(
+            '{"name":"Test Channel","description":"A test channel"}',
+            $request->getBody()->getContents()
+        );
+        $this->assertEquals($responseData, $result);
+    }
+
+    #[Test]
+    public function testCreateChannelWithNameOnly()
+    {
+        $container = [];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode(['data' => $this->channelResponse()]))],
+            $container
+        );
+
+        $pushinator->createChannel('Test Channel');
+
+        $this->assertEquals(
+            '{"name":"Test Channel"}',
+            $container[0]['request']->getBody()->getContents()
+        );
+    }
+
+    #[Test]
+    public function testCreateChannelFailure()
+    {
+        $pushinator = $this->makeClient([new Response(500)]);
+
+        $this->expectException(\RuntimeException::class);
+        $pushinator->createChannel('Test Channel');
+    }
+
+    // -------------------------------------------------------------------------
+    // getChannel
+    // -------------------------------------------------------------------------
+
+    #[Test]
+    public function testGetChannelRequest()
+    {
+        $container = [];
+        $responseData = ['data' => $this->channelResponse()];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode($responseData))],
+            $container
+        );
+
+        $result = $pushinator->getChannel('channel-123');
+
+        $request = $container[0]['request'];
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('https://api.pushinator.com/api/v2/channels/channel-123', $request->getUri());
+        $this->assertEquals('Bearer test-token', $request->getHeaderLine('Authorization'));
+        $this->assertEquals('application/json', $request->getHeaderLine('Content-Type'));
+        $this->assertEquals('pushinator-php/1.0', $request->getHeaderLine('User-Agent'));
+        $this->assertEquals($responseData, $result);
+    }
+
+    #[Test]
+    public function testGetChannelNotFound()
+    {
+        $pushinator = $this->makeClient([new Response(404)]);
+
+        $this->expectException(\RuntimeException::class);
+        $pushinator->getChannel('channel-123');
+    }
+
+    // -------------------------------------------------------------------------
+    // updateChannel
+    // -------------------------------------------------------------------------
+
+    #[Test]
+    public function testUpdateChannelRequest()
+    {
+        $container = [];
+        $responseData = ['data' => $this->channelResponse(['name' => 'Updated Channel'])];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode($responseData))],
+            $container
+        );
+
+        $result = $pushinator->updateChannel('channel-123', 'Updated Channel', 'New description', false);
+
+        $request = $container[0]['request'];
+        $this->assertEquals('PUT', $request->getMethod());
+        $this->assertEquals('https://api.pushinator.com/api/v2/channels/channel-123', $request->getUri());
+        $this->assertEquals('Bearer test-token', $request->getHeaderLine('Authorization'));
+        $this->assertEquals('application/json', $request->getHeaderLine('Content-Type'));
+        $this->assertEquals('pushinator-php/1.0', $request->getHeaderLine('User-Agent'));
+        $this->assertEquals(
+            '{"name":"Updated Channel","description":"New description"}',
+            $request->getBody()->getContents()
+        );
+        $this->assertEquals($responseData, $result);
+    }
+
+    #[Test]
+    public function testUpdateChannelWithNameOnly()
+    {
+        $container = [];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode(['data' => $this->channelResponse()]))],
+            $container
+        );
+
+        $pushinator->updateChannel('channel-123', 'Updated Channel');
+
+        $this->assertEquals(
+            '{"name":"Updated Channel"}',
+            $container[0]['request']->getBody()->getContents()
+        );
+    }
+
+    #[Test]
+    public function testUpdateChannelNotFound()
+    {
+        $pushinator = $this->makeClient([new Response(404)]);
+
+        $this->expectException(\RuntimeException::class);
+        $pushinator->updateChannel('channel-123', 'Updated Channel');
+    }
+
+    // -------------------------------------------------------------------------
+    // deleteChannel
+    // -------------------------------------------------------------------------
+
+    #[Test]
+    public function testDeleteChannelRequest()
+    {
+        $container = [];
+        $responseData = ['data' => $this->channelResponse()];
+        $pushinator = $this->makeClient(
+            [new Response(200, [], json_encode($responseData))],
+            $container
+        );
+
+        $result = $pushinator->deleteChannel('channel-123');
+
+        $request = $container[0]['request'];
+        $this->assertEquals('DELETE', $request->getMethod());
+        $this->assertEquals('https://api.pushinator.com/api/v2/channels/channel-123', $request->getUri());
+        $this->assertEquals('Bearer test-token', $request->getHeaderLine('Authorization'));
+        $this->assertEquals('application/json', $request->getHeaderLine('Content-Type'));
+        $this->assertEquals('pushinator-php/1.0', $request->getHeaderLine('User-Agent'));
+        $this->assertEquals($responseData, $result);
+    }
+
+    #[Test]
+    public function testDeleteChannelNotFound()
+    {
+        $pushinator = $this->makeClient([new Response(404)]);
+
+        $this->expectException(\RuntimeException::class);
+        $pushinator->deleteChannel('channel-123');
+    }
+}