diff --git a/src/Provider/AdapterFactoryQueueProvider.php b/src/Provider/AdapterFactoryQueueProvider.php
index 3346c667..feaed434 100644
--- a/src/Provider/AdapterFactoryQueueProvider.php
+++ b/src/Provider/AdapterFactoryQueueProvider.php
@@ -13,6 +13,12 @@
 use function array_key_exists;
 use function sprintf;
 
+/**
+ * Queue provider based on adapter definitions.
+ *
+ * @see https://github.com/yiisoft/definitions/
+ * @see https://github.com/yiisoft/factory/
+ */
 final class AdapterFactoryQueueProvider implements QueueProviderInterface
 {
     /**
@@ -23,6 +29,11 @@ final class AdapterFactoryQueueProvider implements QueueProviderInterface
     private readonly StrictFactory $factory;
 
     /**
+     * @param QueueInterface $baseQueue Base queue to use for creating queues.
+     * @param array $definitions Definitions to create adapters with indexed by channel names.
+     * @param ContainerInterface|null $container Container to use for resolving dependencies.
+     * @param bool $validate If definitions should be validated when set.
+     *
      * @psalm-param array<string, mixed> $definitions
      * @throws InvalidQueueConfigException
      */
diff --git a/src/Provider/ChannelNotFoundException.php b/src/Provider/ChannelNotFoundException.php
index fa2a6695..2538cda7 100644
--- a/src/Provider/ChannelNotFoundException.php
+++ b/src/Provider/ChannelNotFoundException.php
@@ -9,6 +9,9 @@
 
 use function sprintf;
 
+/**
+ * Thrown when channel is not found.
+ */
 final class ChannelNotFoundException extends LogicException implements QueueProviderException
 {
     public function __construct(string $channel, int $code = 0, ?Throwable $previous = null)
diff --git a/src/Provider/CompositeQueueProvider.php b/src/Provider/CompositeQueueProvider.php
index 57152b94..cd7f36ca 100644
--- a/src/Provider/CompositeQueueProvider.php
+++ b/src/Provider/CompositeQueueProvider.php
@@ -6,6 +6,9 @@
 
 use Yiisoft\Queue\QueueInterface;
 
+/**
+ * Composite queue provider.
+ */
 final class CompositeQueueProvider implements QueueProviderInterface
 {
     /**
@@ -13,6 +16,9 @@ final class CompositeQueueProvider implements QueueProviderInterface
      */
     private readonly array $providers;
 
+    /**
+     * @param QueueProviderInterface ...$providers Queue providers to use.
+     */
     public function __construct(
         QueueProviderInterface ...$providers
     ) {
diff --git a/src/Provider/InvalidQueueConfigException.php b/src/Provider/InvalidQueueConfigException.php
index e1c24a0c..136fe746 100644
--- a/src/Provider/InvalidQueueConfigException.php
+++ b/src/Provider/InvalidQueueConfigException.php
@@ -6,6 +6,9 @@
 
 use LogicException;
 
+/**
+ * Thrown when queue configuration is invalid.
+ */
 final class InvalidQueueConfigException extends LogicException implements QueueProviderException
 {
 }
diff --git a/src/Provider/PrototypeQueueProvider.php b/src/Provider/PrototypeQueueProvider.php
index bcb443d8..53b0d6e2 100644
--- a/src/Provider/PrototypeQueueProvider.php
+++ b/src/Provider/PrototypeQueueProvider.php
@@ -6,8 +6,15 @@
 
 use Yiisoft\Queue\QueueInterface;
 
+/**
+ * Queue provider that only changes the channel name of the base queue.
+ * It can be useful when your queues used the same adapter.
+ */
 final class PrototypeQueueProvider implements QueueProviderInterface
 {
+    /**
+     * @param QueueInterface $baseQueue Base queue to use for creating queues.
+     */
     public function __construct(
         private readonly QueueInterface $baseQueue,
     ) {
diff --git a/src/Provider/QueueFactoryQueueProvider.php b/src/Provider/QueueFactoryQueueProvider.php
index bbb5ff11..3b57375b 100644
--- a/src/Provider/QueueFactoryQueueProvider.php
+++ b/src/Provider/QueueFactoryQueueProvider.php
@@ -12,6 +12,12 @@
 use function array_key_exists;
 use function sprintf;
 
+/**
+ * Queue provider based on queue definitions.
+ *
+ * @see https://github.com/yiisoft/definitions/
+ * @see https://github.com/yiisoft/factory/
+ */
 final class QueueFactoryQueueProvider implements QueueProviderInterface
 {
     /**
@@ -22,6 +28,10 @@ final class QueueFactoryQueueProvider implements QueueProviderInterface
     private readonly StrictFactory $factory;
 
     /**
+     * @param array $definitions Definitions to create queues with indexed by channel names.
+     * @param ContainerInterface|null $container Container to use for resolving dependencies.
+     * @param bool $validate If definitions should be validated when set.
+     *
      * @psalm-param array<string, mixed> $definitions
      * @throws InvalidQueueConfigException
      */
diff --git a/src/Provider/QueueProviderException.php b/src/Provider/QueueProviderException.php
index 62a1a11c..17fa3bc4 100644
--- a/src/Provider/QueueProviderException.php
+++ b/src/Provider/QueueProviderException.php
@@ -6,6 +6,9 @@
 
 use Throwable;
 
+/**
+ * Base interface representing a generic exception in a queue provider.
+ */
 interface QueueProviderException extends Throwable
 {
 }
diff --git a/src/Provider/QueueProviderInterface.php b/src/Provider/QueueProviderInterface.php
index 7c67c27e..a02cd42b 100644
--- a/src/Provider/QueueProviderInterface.php
+++ b/src/Provider/QueueProviderInterface.php
@@ -6,14 +6,30 @@
 
 use Yiisoft\Queue\QueueInterface;
 
+/**
+ * `QueueProviderInterface` provides a way to get a queue instance by channel name.
+ */
 interface QueueProviderInterface
 {
     /**
-     * @throws InvalidQueueConfigException
-     * @throws ChannelNotFoundException
-     * @throws QueueProviderException
+     * Find a queue by channel name and returns it.
+     *
+     * @param string $channel Channel name.
+     *
+     * @return QueueInterface Queue instance.
+     *
+     * @throws InvalidQueueConfigException If the queue configuration is invalid.
+     * @throws ChannelNotFoundException If the channel is not found.
+     * @throws QueueProviderException If the queue provider fails to provide a queue.
      */
     public function get(string $channel): QueueInterface;
 
+    /**
+     * Check if a queue with the specified channel name exists.
+     *
+     * @param string $channel Channel name.
+     *
+     * @return bool Whether the queue exists.
+     */
     public function has(string $channel): bool;
 }