diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -86,9 +86,11 @@
     'PhutilAWSException' => 'future/aws/PhutilAWSException.php',
     'PhutilAWSFuture' => 'future/aws/PhutilAWSFuture.php',
     'PhutilAWSManagementWorkflow' => 'future/aws/management/PhutilAWSManagementWorkflow.php',
+    'PhutilAWSS3DeleteManagementWorkflow' => 'future/aws/management/PhutilAWSS3DeleteManagementWorkflow.php',
     'PhutilAWSS3Future' => 'future/aws/PhutilAWSS3Future.php',
     'PhutilAWSS3GetManagementWorkflow' => 'future/aws/management/PhutilAWSS3GetManagementWorkflow.php',
     'PhutilAWSS3ManagementWorkflow' => 'future/aws/management/PhutilAWSS3ManagementWorkflow.php',
+    'PhutilAWSS3PutManagementWorkflow' => 'future/aws/management/PhutilAWSS3PutManagementWorkflow.php',
     'PhutilAWSv4Signature' => 'future/aws/PhutilAWSv4Signature.php',
     'PhutilAWSv4SignatureTestCase' => 'future/aws/__tests__/PhutilAWSv4SignatureTestCase.php',
     'PhutilAggregateException' => 'error/PhutilAggregateException.php',
@@ -607,9 +609,11 @@
     'PhutilAWSException' => 'Exception',
     'PhutilAWSFuture' => 'FutureProxy',
     'PhutilAWSManagementWorkflow' => 'PhutilArgumentWorkflow',
+    'PhutilAWSS3DeleteManagementWorkflow' => 'PhutilAWSS3ManagementWorkflow',
     'PhutilAWSS3Future' => 'PhutilAWSFuture',
     'PhutilAWSS3GetManagementWorkflow' => 'PhutilAWSS3ManagementWorkflow',
     'PhutilAWSS3ManagementWorkflow' => 'PhutilAWSManagementWorkflow',
+    'PhutilAWSS3PutManagementWorkflow' => 'PhutilAWSS3ManagementWorkflow',
     'PhutilAWSv4Signature' => 'Phobject',
     'PhutilAWSv4SignatureTestCase' => 'PhutilTestCase',
     'PhutilAggregateException' => 'Exception',
diff --git a/src/future/aws/PhutilAWSFuture.php b/src/future/aws/PhutilAWSFuture.php
--- a/src/future/aws/PhutilAWSFuture.php
+++ b/src/future/aws/PhutilAWSFuture.php
@@ -10,6 +10,8 @@
   private $path = '/';
   private $params = array();
   private $endpoint;
+  private $data = '';
+  private $headers = array();
 
   abstract public function getServiceName();
 
@@ -71,25 +73,45 @@
     return $this->path;
   }
 
+  public function setData($data) {
+    $this->data = $data;
+    return $this;
+  }
+
+  public function getData() {
+    return $this->data;
+  }
+
   protected function getParameters() {
     $params = $this->params;
     return $params;
   }
 
+  public function addHeader($key, $value) {
+    $this->headers[] = array($key, $value);
+    return $this;
+  }
+
   protected function getProxiedFuture() {
     if (!$this->future) {
       $params = $this->getParameters();
       $method = $this->getHTTPMethod();
       $host = $this->getEndpoint();
       $path = $this->getPath();
+      $data = $this->getData();
 
       $uri = id(new PhutilURI("https://{$host}/"))
         ->setPath($path)
         ->setQueryParams($params);
 
-      $future = id(new HTTPSFuture($uri))
+      $future = id(new HTTPSFuture($uri, $data))
         ->setMethod($method);
 
+      foreach ($this->headers as $header) {
+        list($key, $value) = $header;
+        $future->addHeader($key, $value);
+      }
+
       $this->signRequest($future);
 
       $this->future = $future;
diff --git a/src/future/aws/PhutilAWSS3Future.php b/src/future/aws/PhutilAWSS3Future.php
--- a/src/future/aws/PhutilAWSS3Future.php
+++ b/src/future/aws/PhutilAWSS3Future.php
@@ -26,6 +26,29 @@
     return $this;
   }
 
+  public function setParametersForPutObject($key, $value) {
+    $bucket = $this->getBucket();
+
+    $this->setHTTPMethod('PUT');
+    $this->setPath($bucket.'/'.$key);
+
+    $this->addHeader('X-Amz-ACL', 'private');
+    $this->addHeader('Content-Type', 'application/octet-stream');
+
+    $this->setData($value);
+
+    return $this;
+  }
+
+  public function setParametersForDeleteObject($key) {
+    $bucket = $this->getBucket();
+
+    $this->setHTTPMethod('DELETE');
+    $this->setPath($bucket.'/'.$key);
+
+    return $this;
+  }
+
   protected function didReceiveResult($result) {
     list($status, $body, $headers) = $result;
 
diff --git a/src/future/aws/management/PhutilAWSManagementWorkflow.php b/src/future/aws/management/PhutilAWSManagementWorkflow.php
--- a/src/future/aws/management/PhutilAWSManagementWorkflow.php
+++ b/src/future/aws/management/PhutilAWSManagementWorkflow.php
@@ -43,6 +43,15 @@
 
     $template->setRegion($region);
 
+    $endpoint = $argv->getArg('endpoint');
+    if (!strlen($endpoint)) {
+      throw new PhutilArgumentUsageException(
+        pht(
+          'You must specify an AWS endpoint with --endpoint.'));
+    }
+
+    $template->setEndpoint($endpoint);
+
     return $template;
   }
 
@@ -63,6 +72,11 @@
         'param' => 'region',
         'help' => pht('AWS region.'),
       ),
+      array(
+        'name' => 'endpoint',
+        'param' => 'endpoint',
+        'help' => pht('Name of the AWS region to access.'),
+      ),
     );
   }
 
diff --git a/src/future/aws/management/PhutilAWSS3DeleteManagementWorkflow.php b/src/future/aws/management/PhutilAWSS3DeleteManagementWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/future/aws/management/PhutilAWSS3DeleteManagementWorkflow.php
@@ -0,0 +1,45 @@
+<?php
+
+final class PhutilAWSS3DeleteManagementWorkflow
+  extends PhutilAWSS3ManagementWorkflow {
+
+  protected function didConstruct() {
+    $this
+      ->setName('delete')
+      ->setExamples(
+        '**delete** --key __key__')
+      ->setSynopsis(pht('Delete an object from S3.'))
+      ->setArguments(
+        array_merge(
+          $this->getAWSArguments(),
+          $this->getAWSS3BucketArguments(),
+          array(
+            array(
+              'name'    => 'key',
+              'param'   => 'key',
+              'help'    => pht('Specify a key to delete.'),
+            ),
+          )));
+  }
+
+  public function execute(PhutilArgumentParser $args) {
+    $key = $args->getArg('key');
+    if (!strlen($key)) {
+      throw new PhutilArgumentUsageException(
+        pht(
+          'Specify an AWS S3 object key to access with --key.'));
+    }
+
+    $future = $this->newAWSFuture(new PhutilAWSS3Future())
+      ->setParametersForDeleteObject($key);
+
+    $future->resolve();
+
+    echo tsprintf(
+      "%s\n",
+      pht('Deleted "%s".', $key));
+
+    return 0;
+  }
+
+}
diff --git a/src/future/aws/management/PhutilAWSS3ManagementWorkflow.php b/src/future/aws/management/PhutilAWSS3ManagementWorkflow.php
--- a/src/future/aws/management/PhutilAWSS3ManagementWorkflow.php
+++ b/src/future/aws/management/PhutilAWSS3ManagementWorkflow.php
@@ -10,12 +10,18 @@
         'param' => 'bucket',
         'help' => pht('Name of the S3 bucket to access.'),
       ),
-      array(
-        'name' => 'endpoint',
-        'param' => 'endpoint',
-        'help' => pht('Name of the AWS region to access.'),
-      ),
     );
   }
 
+  protected function newAWSFuture($future) {
+    $future = parent::newAWSFuture($future);
+
+    $argv = $this->getArgv();
+    $bucket = $argv->getArg('bucket');
+
+    $future->setBucket($bucket);
+
+    return $future;
+  }
+
 }
diff --git a/src/future/aws/management/PhutilAWSS3PutManagementWorkflow.php b/src/future/aws/management/PhutilAWSS3PutManagementWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/future/aws/management/PhutilAWSS3PutManagementWorkflow.php
@@ -0,0 +1,52 @@
+<?php
+
+final class PhutilAWSS3PutManagementWorkflow
+  extends PhutilAWSS3ManagementWorkflow {
+
+  protected function didConstruct() {
+    $this
+      ->setName('put')
+      ->setExamples(
+        '**put** --key __key__')
+      ->setSynopsis(pht('Upload content to S3.'))
+      ->setArguments(
+        array_merge(
+          $this->getAWSArguments(),
+          $this->getAWSS3BucketArguments(),
+          array(
+            array(
+              'name'    => 'key',
+              'param'   => 'key',
+              'help'    => pht('Specify a key to upload.'),
+            ),
+          )));
+  }
+
+  public function execute(PhutilArgumentParser $args) {
+    $key = $args->getArg('key');
+    if (!strlen($key)) {
+      throw new PhutilArgumentUsageException(
+        pht(
+          'Specify an AWS S3 object key to access with --key.'));
+    }
+
+    $future = $this->newAWSFuture(new PhutilAWSS3Future());
+
+    echo tsprintf(
+      "%s\n",
+      pht('Reading data from stdin...'));
+
+    $data = file_get_contents('php://stdin');
+
+    $future->setParametersForPutObject($key, $data);
+
+    $result = $future->resolve();
+
+    echo tsprintf(
+      "%s\n",
+      pht('Uploaded "%s".', $key));
+
+    return 0;
+  }
+
+}