diff --git a/composer.json b/composer.json
index 9651b02..98892f9 100644
--- a/composer.json
+++ b/composer.json
@@ -54,7 +54,7 @@
         "test:lint": "@php vendor/bin/pint --config https://raw.githubusercontent.com/DIJ-digital/pint-config/main/pint.json",
         "test:unit": "pest",
         "test:types": "phpstan",
-        "test:refactor": "rector --dry-run",
+        "test:refactor": "rector",
         "test": [
             "@test:lint",
             "@test:type-coverage",
diff --git a/src/Contracts/TransporterInterface.php b/src/Contracts/TransporterInterface.php
index 8234ade..558497a 100644
--- a/src/Contracts/TransporterInterface.php
+++ b/src/Contracts/TransporterInterface.php
@@ -9,34 +9,34 @@
 interface TransporterInterface
 {
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      */
     public function request(string $method, string $uri, array $options = []): ResponseInterface;
 
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      */
     public function get(string $uri, array $options = []): ResponseInterface;
 
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      */
     public function post(string $uri, array $options = []): ResponseInterface;
 
     /**
-     * @param array<string, mixed> $data
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $data
+     * @param  array<string, mixed>  $options
      */
     public function postJson(string $uri, array $data = [], array $options = []): ResponseInterface;
 
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      */
     public function delete(string $uri, array $options = []): ResponseInterface;
 
     /**
-     * @param array<string, mixed> $data
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $data
+     * @param  array<string, mixed>  $options
      */
     public function patchJson(string $uri, array $data = [], array $options = []): ResponseInterface;
 }
diff --git a/src/Dataset.php b/src/Dataset.php
new file mode 100644
index 0000000..dec74f2
--- /dev/null
+++ b/src/Dataset.php
@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP;
+
+use DIJ\Langfuse\PHP\Contracts\TransporterInterface;
+use DIJ\Langfuse\PHP\Responses\DatasetListResponse;
+use DIJ\Langfuse\PHP\Responses\DatasetResponse;
+use DIJ\Langfuse\PHP\Responses\DatasetRunListResponse;
+use JsonException;
+
+class Dataset
+{
+    public function __construct(private readonly TransporterInterface $transporter) {}
+
+    /**
+     * @param  array<string, mixed>|null  $metadata
+     * @param  array<string, mixed>|null  $inputSchema
+     * @param  array<string, mixed>|null  $expectedOutputSchema
+     *
+     * @throws JsonException
+     */
+    public function create(
+        string $name,
+        ?string $description = null,
+        ?array $metadata = null,
+        ?array $inputSchema = null,
+        ?array $expectedOutputSchema = null,
+    ): DatasetResponse {
+        $response = $this->transporter->postJson(
+            '/api/public/v2/datasets',
+            array_filter([
+                'name' => $name,
+                'description' => $description,
+                'metadata' => $metadata,
+                'inputSchema' => $inputSchema,
+                'expectedOutputSchema' => $expectedOutputSchema,
+            ], fn ($value) => $value !== null)
+        );
+
+        /** @var array{id: string, name: string, projectId: string, createdAt: string, updatedAt: string, description?: string|null, metadata?: array<string, mixed>|null, inputSchema?: array<string, mixed>|null, expectedOutputSchema?: array<string, mixed>|null} $data */
+        $data = json_decode($response->getBody()->getContents(), true, flags: JSON_THROW_ON_ERROR);
+
+        return DatasetResponse::fromArray($data);
+    }
+
+    /**
+     * @throws JsonException
+     */
+    public function get(string $datasetName): DatasetResponse
+    {
+        $response = $this->transporter->get(
+            sprintf('/api/public/v2/datasets/%s', urlencode($datasetName))
+        );
+
+        /** @var array{id: string, name: string, projectId: string, createdAt: string, updatedAt: string, description?: string|null, metadata?: array<string, mixed>|null, inputSchema?: array<string, mixed>|null, expectedOutputSchema?: array<string, mixed>|null} $data */
+        $data = json_decode($response->getBody()->getContents(), true, flags: JSON_THROW_ON_ERROR);
+
+        return DatasetResponse::fromArray($data);
+    }
+
+    /**
+     * @throws JsonException
+     */
+    public function list(?int $page = null, ?int $limit = null): DatasetListResponse
+    {
+        $response = $this->transporter->get(
+            '/api/public/v2/datasets',
+            ['query' => array_filter([
+                'page' => $page,
+                'limit' => $limit,
+            ], fn ($value) => $value !== null)]
+        );
+
+        /** @var array{data: array<int, array{id: string, name: string, projectId: string, createdAt: string, updatedAt: string, description?: string|null, metadata?: array<string, mixed>|null, inputSchema?: array<string, mixed>|null, expectedOutputSchema?: array<string, mixed>|null}>, meta: array{page: int, limit: int, totalPages: int, totalItems: int}} $data */
+        $data = json_decode($response->getBody()->getContents(), true, flags: JSON_THROW_ON_ERROR);
+
+        return DatasetListResponse::fromArray($data);
+    }
+
+    /**
+     * @throws JsonException
+     */
+    public function getRuns(string $datasetName, ?int $page = null, ?int $limit = null): DatasetRunListResponse
+    {
+        $response = $this->transporter->get(
+            sprintf('/api/public/datasets/%s/runs', urlencode($datasetName)),
+            ['query' => array_filter([
+                'page' => $page,
+                'limit' => $limit,
+            ], fn ($value) => $value !== null)]
+        );
+
+        /** @var array{data: array<int, array{id: string, name: string, datasetId: string, datasetName: string, createdAt: string, updatedAt: string, description?: string|null, metadata?: array<string, mixed>|null}>, meta: array{page: int, limit: int, totalPages: int, totalItems: int}} $data */
+        $data = json_decode($response->getBody()->getContents(), true, flags: JSON_THROW_ON_ERROR);
+
+        return DatasetRunListResponse::fromArray($data);
+    }
+}
diff --git a/src/Enums/DatasetStatus.php b/src/Enums/DatasetStatus.php
new file mode 100644
index 0000000..2552c0b
--- /dev/null
+++ b/src/Enums/DatasetStatus.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Enums;
+
+enum DatasetStatus: string
+{
+    case ACTIVE = 'ACTIVE';
+    case ARCHIVED = 'ARCHIVED';
+}
diff --git a/src/Langfuse.php b/src/Langfuse.php
index ebe96f9..177476c 100644
--- a/src/Langfuse.php
+++ b/src/Langfuse.php
@@ -12,8 +12,7 @@ public function __construct(
         private readonly TransporterInterface $transporter,
         private readonly string $environment = 'default',
         private readonly string $label = 'latest',
-    ) {
-    }
+    ) {}
 
     public function prompt(): Prompt
     {
@@ -37,4 +36,11 @@ public function score(): Score
             transporter: $this->transporter,
         );
     }
+
+    public function dataset(): Dataset
+    {
+        return new Dataset(
+            transporter: $this->transporter,
+        );
+    }
 }
diff --git a/src/Responses/DatasetListResponse.php b/src/Responses/DatasetListResponse.php
new file mode 100644
index 0000000..716f7f9
--- /dev/null
+++ b/src/Responses/DatasetListResponse.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Responses;
+
+use DIJ\Langfuse\PHP\ValueObjects\MetaData;
+
+readonly class DatasetListResponse
+{
+    /**
+     * @param  array<int, DatasetResponse>  $data
+     */
+    public function __construct(
+        public array $data,
+        public MetaData $meta,
+    ) {}
+
+    /**
+     * @param array{
+     *     data: array<int, array{id: string, name: string, projectId: string, createdAt: string, updatedAt: string, description?: string|null, metadata?: array<string, mixed>|null, inputSchema?: array<string, mixed>|null, expectedOutputSchema?: array<string, mixed>|null}>,
+     *     meta: array{page: int, limit: int, totalPages: int, totalItems: int}
+     * } $data
+     */
+    public static function fromArray(array $data): self
+    {
+        return new self(
+            data: array_map(
+                fn (array $item): DatasetResponse => DatasetResponse::fromArray($item),
+                $data['data']
+            ),
+            meta: MetaData::fromArray($data['meta']),
+        );
+    }
+}
diff --git a/src/Responses/DatasetResponse.php b/src/Responses/DatasetResponse.php
new file mode 100644
index 0000000..199af37
--- /dev/null
+++ b/src/Responses/DatasetResponse.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Responses;
+
+readonly class DatasetResponse
+{
+    /**
+     * @param  array<string, mixed>|null  $metadata
+     * @param  array<string, mixed>|null  $inputSchema
+     * @param  array<string, mixed>|null  $expectedOutputSchema
+     */
+    public function __construct(
+        public string $id,
+        public string $name,
+        public string $projectId,
+        public string $createdAt,
+        public string $updatedAt,
+        public ?string $description = null,
+        public ?array $metadata = null,
+        public ?array $inputSchema = null,
+        public ?array $expectedOutputSchema = null,
+    ) {}
+
+    /**
+     * @param array{
+     *     id: string,
+     *     name: string,
+     *     projectId: string,
+     *     createdAt: string,
+     *     updatedAt: string,
+     *     description?: string|null,
+     *     metadata?: array<string, mixed>|null,
+     *     inputSchema?: array<string, mixed>|null,
+     *     expectedOutputSchema?: array<string, mixed>|null
+     * } $data
+     */
+    public static function fromArray(array $data): self
+    {
+        return new self(
+            id: $data['id'],
+            name: $data['name'],
+            projectId: $data['projectId'],
+            createdAt: $data['createdAt'],
+            updatedAt: $data['updatedAt'],
+            description: $data['description'] ?? null,
+            metadata: $data['metadata'] ?? null,
+            inputSchema: $data['inputSchema'] ?? null,
+            expectedOutputSchema: $data['expectedOutputSchema'] ?? null,
+        );
+    }
+}
diff --git a/src/Responses/DatasetRunListResponse.php b/src/Responses/DatasetRunListResponse.php
new file mode 100644
index 0000000..4e1df57
--- /dev/null
+++ b/src/Responses/DatasetRunListResponse.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Responses;
+
+use DIJ\Langfuse\PHP\ValueObjects\MetaData;
+
+readonly class DatasetRunListResponse
+{
+    /**
+     * @param  array<int, DatasetRunResponse>  $data
+     */
+    public function __construct(
+        public array $data,
+        public MetaData $meta,
+    ) {}
+
+    /**
+     * @param array{
+     *     data: array<int, array{id: string, name: string, datasetId: string, datasetName: string, createdAt: string, updatedAt: string, description?: string|null, metadata?: array<string, mixed>|null}>,
+     *     meta: array{page: int, limit: int, totalPages: int, totalItems: int}
+     * } $data
+     */
+    public static function fromArray(array $data): self
+    {
+        return new self(
+            data: array_map(
+                fn (array $item): DatasetRunResponse => DatasetRunResponse::fromArray($item),
+                $data['data']
+            ),
+            meta: MetaData::fromArray($data['meta']),
+        );
+    }
+}
diff --git a/src/Responses/DatasetRunResponse.php b/src/Responses/DatasetRunResponse.php
new file mode 100644
index 0000000..895f842
--- /dev/null
+++ b/src/Responses/DatasetRunResponse.php
@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Responses;
+
+readonly class DatasetRunResponse
+{
+    /**
+     * @param  array<string, mixed>|null  $metadata
+     */
+    public function __construct(
+        public string $id,
+        public string $name,
+        public string $datasetId,
+        public string $datasetName,
+        public string $createdAt,
+        public string $updatedAt,
+        public ?string $description = null,
+        public ?array $metadata = null,
+    ) {}
+
+    /**
+     * @param array{
+     *     id: string,
+     *     name: string,
+     *     datasetId: string,
+     *     datasetName: string,
+     *     createdAt: string,
+     *     updatedAt: string,
+     *     description?: string|null,
+     *     metadata?: array<string, mixed>|null
+     * } $data
+     */
+    public static function fromArray(array $data): self
+    {
+        return new self(
+            id: $data['id'],
+            name: $data['name'],
+            datasetId: $data['datasetId'],
+            datasetName: $data['datasetName'],
+            createdAt: $data['createdAt'],
+            updatedAt: $data['updatedAt'],
+            description: $data['description'] ?? null,
+            metadata: $data['metadata'] ?? null,
+        );
+    }
+}
diff --git a/src/Testing/Responses/GetDatasetListResponse.php b/src/Testing/Responses/GetDatasetListResponse.php
new file mode 100644
index 0000000..b105682
--- /dev/null
+++ b/src/Testing/Responses/GetDatasetListResponse.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Testing\Responses;
+
+use GuzzleHttp\Psr7\Response;
+
+class GetDatasetListResponse extends Response
+{
+    /**
+     * @param  array<array<string>|string>  $headers
+     * @param  array<string, mixed>  $data
+     */
+    public function __construct(int $status = 200, array $headers = [], string $version = '1.1', ?string $reason = null, array $data = [])
+    {
+        parent::__construct($status, $headers, (string) json_encode($this->payload($data)), $version, $reason);
+    }
+
+    /**
+     * @param  array<string, mixed>  $data
+     * @return array<string, mixed>
+     */
+    public function payload(array $data = []): array
+    {
+        return array_merge([
+            'data' => [
+                [
+                    'id' => 'dataset-123',
+                    'name' => 'test-dataset',
+                    'description' => 'A test dataset',
+                    'projectId' => 'project-456',
+                    'createdAt' => '2025-01-15T10:00:00.000Z',
+                    'updatedAt' => '2025-01-15T10:00:00.000Z',
+                    'metadata' => ['key' => 'value'],
+                    'inputSchema' => null,
+                    'expectedOutputSchema' => null,
+                ],
+                [
+                    'id' => 'dataset-456',
+                    'name' => 'another-dataset',
+                    'description' => 'Another test dataset',
+                    'projectId' => 'project-456',
+                    'createdAt' => '2025-01-16T10:00:00.000Z',
+                    'updatedAt' => '2025-01-16T10:00:00.000Z',
+                    'metadata' => null,
+                    'inputSchema' => null,
+                    'expectedOutputSchema' => null,
+                ],
+            ],
+            'meta' => [
+                'page' => 1,
+                'limit' => 50,
+                'totalPages' => 1,
+                'totalItems' => 2,
+            ],
+        ], $data);
+    }
+}
diff --git a/src/Testing/Responses/GetDatasetResponse.php b/src/Testing/Responses/GetDatasetResponse.php
new file mode 100644
index 0000000..e259337
--- /dev/null
+++ b/src/Testing/Responses/GetDatasetResponse.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Testing\Responses;
+
+use GuzzleHttp\Psr7\Response;
+
+class GetDatasetResponse extends Response
+{
+    /**
+     * @param  array<array<string>|string>  $headers
+     * @param  array<string, mixed>  $data
+     */
+    public function __construct(int $status = 200, array $headers = [], string $version = '1.1', ?string $reason = null, array $data = [])
+    {
+        parent::__construct($status, $headers, (string) json_encode($this->payload($data)), $version, $reason);
+    }
+
+    /**
+     * @param  array<string, mixed>  $data
+     * @return array<string, mixed>
+     */
+    public function payload(array $data = []): array
+    {
+        return array_merge([
+            'id' => 'dataset-123',
+            'name' => 'test-dataset',
+            'description' => 'A test dataset',
+            'projectId' => 'project-456',
+            'createdAt' => '2025-01-15T10:00:00.000Z',
+            'updatedAt' => '2025-01-15T10:00:00.000Z',
+            'metadata' => ['key' => 'value'],
+            'inputSchema' => null,
+            'expectedOutputSchema' => null,
+        ], $data);
+    }
+}
diff --git a/src/Testing/Responses/GetDatasetRunListResponse.php b/src/Testing/Responses/GetDatasetRunListResponse.php
new file mode 100644
index 0000000..9ff46d1
--- /dev/null
+++ b/src/Testing/Responses/GetDatasetRunListResponse.php
@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DIJ\Langfuse\PHP\Testing\Responses;
+
+use GuzzleHttp\Psr7\Response;
+
+class GetDatasetRunListResponse extends Response
+{
+    /**
+     * @param  array<array<string>|string>  $headers
+     * @param  array<string, mixed>  $data
+     */
+    public function __construct(int $status = 200, array $headers = [], string $version = '1.1', ?string $reason = null, array $data = [])
+    {
+        parent::__construct($status, $headers, (string) json_encode($this->payload($data)), $version, $reason);
+    }
+
+    /**
+     * @param  array<string, mixed>  $data
+     * @return array<string, mixed>
+     */
+    public function payload(array $data = []): array
+    {
+        return array_merge([
+            'data' => [
+                [
+                    'id' => 'run-123',
+                    'name' => 'test-run',
+                    'description' => 'A test run',
+                    'datasetId' => 'dataset-123',
+                    'datasetName' => 'test-dataset',
+                    'createdAt' => '2025-01-15T10:00:00.000Z',
+                    'updatedAt' => '2025-01-15T10:00:00.000Z',
+                    'metadata' => ['key' => 'value'],
+                ],
+                [
+                    'id' => 'run-456',
+                    'name' => 'another-run',
+                    'description' => null,
+                    'datasetId' => 'dataset-123',
+                    'datasetName' => 'test-dataset',
+                    'createdAt' => '2025-01-16T10:00:00.000Z',
+                    'updatedAt' => '2025-01-16T10:00:00.000Z',
+                    'metadata' => null,
+                ],
+            ],
+            'meta' => [
+                'page' => 1,
+                'limit' => 50,
+                'totalPages' => 1,
+                'totalItems' => 2,
+            ],
+        ], $data);
+    }
+}
diff --git a/src/Transporters/HttpTransporter.php b/src/Transporters/HttpTransporter.php
index 319cf49..a2b734b 100644
--- a/src/Transporters/HttpTransporter.php
+++ b/src/Transporters/HttpTransporter.php
@@ -21,8 +21,7 @@ class HttpTransporter implements TransporterInterface
 {
     public function __construct(
         public readonly ClientInterface $client
-    ) {
-    }
+    ) {}
 
     /**
      * @throws BadRequestException
@@ -45,7 +44,7 @@ public function request(string $method, string $uri, array $options = []): Respo
     }
 
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      *
      * @throws BadRequestException
      * @throws ForbiddenException
@@ -61,7 +60,7 @@ public function get(string $uri, array $options = []): ResponseInterface
     }
 
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      *
      * @throws BadRequestException
      * @throws ForbiddenException
@@ -82,7 +81,7 @@ public function postJson(string $uri, array $data = [], array $options = []): Re
     }
 
     /**
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $options
      *
      * @throws BadRequestException
      * @throws ForbiddenException
@@ -98,8 +97,8 @@ public function delete(string $uri, array $options = []): ResponseInterface
     }
 
     /**
-     * @param array<string, mixed> $data
-     * @param array<string, mixed> $options
+     * @param  array<string, mixed>  $data
+     * @param  array<string, mixed>  $options
      *
      * @throws BadRequestException
      * @throws ForbiddenException
diff --git a/tests/Feature/DatasetTest.php b/tests/Feature/DatasetTest.php
new file mode 100644
index 0000000..6457e4b
--- /dev/null
+++ b/tests/Feature/DatasetTest.php
@@ -0,0 +1,179 @@
+<?php
+
+declare(strict_types=1);
+
+use DIJ\Langfuse\PHP\Langfuse;
+use DIJ\Langfuse\PHP\Responses\DatasetListResponse;
+use DIJ\Langfuse\PHP\Responses\DatasetResponse;
+use DIJ\Langfuse\PHP\Responses\DatasetRunListResponse;
+use DIJ\Langfuse\PHP\Responses\DatasetRunResponse;
+use DIJ\Langfuse\PHP\Testing\Responses\GetDatasetListResponse;
+use DIJ\Langfuse\PHP\Testing\Responses\GetDatasetResponse;
+use DIJ\Langfuse\PHP\Testing\Responses\GetDatasetRunListResponse;
+use DIJ\Langfuse\PHP\Transporters\HttpTransporter;
+use DIJ\Langfuse\PHP\ValueObjects\MetaData;
+use GuzzleHttp\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Middleware;
+use Psr\Http\Message\RequestInterface;
+
+it('can create a dataset', function (): void {
+    $mock = new MockHandler([
+        new GetDatasetResponse,
+    ]);
+
+    $handlerStack = HandlerStack::create($mock);
+    $client = new Client(['handler' => $handlerStack]);
+
+    $dataset = (new Langfuse(new HttpTransporter($client)))
+        ->dataset()
+        ->create(
+            name: 'test-dataset',
+            description: 'A test dataset',
+            metadata: ['key' => 'value'],
+        );
+
+    expect($dataset)->toBeInstanceOf(DatasetResponse::class)
+        ->and($dataset->id)->toBe('dataset-123')
+        ->and($dataset->name)->toBe('test-dataset')
+        ->and($dataset->description)->toBe('A test dataset')
+        ->and($dataset->projectId)->toBe('project-456')
+        ->and($dataset->metadata)->toBe(['key' => 'value']);
+});
+
+it('can get a dataset by name', function (): void {
+    $mock = new MockHandler([
+        new GetDatasetResponse,
+    ]);
+
+    $handlerStack = HandlerStack::create($mock);
+    $client = new Client(['handler' => $handlerStack]);
+
+    $dataset = (new Langfuse(new HttpTransporter($client)))
+        ->dataset()
+        ->get('test-dataset');
+
+    expect($dataset)->toBeInstanceOf(DatasetResponse::class)
+        ->and($dataset->id)->toBe('dataset-123')
+        ->and($dataset->name)->toBe('test-dataset');
+});
+
+it('can list datasets', function (): void {
+    $mock = new MockHandler([
+        new GetDatasetListResponse,
+    ]);
+
+    $handlerStack = HandlerStack::create($mock);
+    $client = new Client(['handler' => $handlerStack]);
+
+    $datasets = (new Langfuse(new HttpTransporter($client)))
+        ->dataset()
+        ->list();
+
+    expect($datasets)->toBeInstanceOf(DatasetListResponse::class)
+        ->and($datasets->data)->toBeArray()
+        ->and($datasets->data)->toHaveCount(2)
+        ->and($datasets->data[0])->toBeInstanceOf(DatasetResponse::class)
+        ->and($datasets->data[0]->name)->toBe('test-dataset')
+        ->and($datasets->data[1]->name)->toBe('another-dataset')
+        ->and($datasets->meta)->toBeInstanceOf(MetaData::class)
+        ->and($datasets->meta->totalItems)->toBe(2);
+});
+
+it('can list datasets with pagination', function (): void {
+    /** @var array<int, array{request: RequestInterface}> $history */
+    $history = [];
+
+    $mock = new MockHandler([
+        new GetDatasetListResponse,
+    ]);
+
+    $stack = HandlerStack::create($mock);
+    $stack->push(Middleware::history($history));
+
+    $client = new Client(['handler' => $stack]);
+
+    (new Langfuse(new HttpTransporter($client)))
+        ->dataset()
+        ->list(page: 2, limit: 10);
+
+    expect($history)->toHaveCount(1);
+
+    /** @var array{request: RequestInterface} $first */
+    $first = $history[0];
+    /** @var RequestInterface $request */
+    $request = $first['request'];
+    $query = $request->getUri()->getQuery();
+
+    expect($query)->toContain('page=2')
+        ->and($query)->toContain('limit=10');
+});
+
+it('can get dataset runs', function (): void {
+    $mock = new MockHandler([
+        new GetDatasetRunListResponse,
+    ]);
+
+    $handlerStack = HandlerStack::create($mock);
+    $client = new Client(['handler' => $handlerStack]);
+
+    $runs = (new Langfuse(new HttpTransporter($client)))
+        ->dataset()
+        ->getRuns('test-dataset');
+
+    expect($runs)->toBeInstanceOf(DatasetRunListResponse::class)
+        ->and($runs->data)->toBeArray()
+        ->and($runs->data)->toHaveCount(2)
+        ->and($runs->data[0])->toBeInstanceOf(DatasetRunResponse::class)
+        ->and($runs->data[0]->name)->toBe('test-run')
+        ->and($runs->data[0]->datasetId)->toBe('dataset-123')
+        ->and($runs->data[0]->datasetName)->toBe('test-dataset')
+        ->and($runs->data[1]->name)->toBe('another-run')
+        ->and($runs->meta)->toBeInstanceOf(MetaData::class)
+        ->and($runs->meta->totalItems)->toBe(2);
+});
+
+it('sends correct payload when creating a dataset', function (): void {
+    /** @var array<int, array{request: RequestInterface}> $history */
+    $history = [];
+
+    $mock = new MockHandler([
+        new GetDatasetResponse,
+    ]);
+
+    $stack = HandlerStack::create($mock);
+    $stack->push(Middleware::history($history));
+
+    $client = new Client(['handler' => $stack]);
+
+    (new Langfuse(new HttpTransporter($client)))
+        ->dataset()
+        ->create(
+            name: 'my-dataset',
+            description: 'Test description',
+            metadata: ['env' => 'test'],
+            inputSchema: ['type' => 'object'],
+            expectedOutputSchema: ['type' => 'string'],
+        );
+
+    expect($history)->toHaveCount(1);
+
+    /** @var array{request: RequestInterface} $first */
+    $first = $history[0];
+    /** @var RequestInterface $request */
+    $request = $first['request'];
+
+    expect($request->getMethod())->toBe('POST')
+        ->and((string) $request->getUri())->toContain('/api/public/v2/datasets')
+        ->and($request->getHeaderLine('Content-Type'))->toContain('application/json');
+
+    /** @var array<string, mixed> $body */
+    $body = json_decode((string) $request->getBody(), true);
+
+    expect($body['name'])->toBe('my-dataset')
+        ->and($body['description'])->toBe('Test description')
+        ->and($body['metadata'])->toBe(['env' => 'test'])
+        ->and($body['inputSchema'])->toBe(['type' => 'object'])
+        ->and($body['expectedOutputSchema'])->toBe(['type' => 'string']);
+});