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
@@ -1357,6 +1357,7 @@
     'HeraldApplyTranscript' => 'applications/herald/storage/transcript/HeraldApplyTranscript.php',
     'HeraldBasicFieldGroup' => 'applications/herald/field/HeraldBasicFieldGroup.php',
     'HeraldBuildableState' => 'applications/herald/state/HeraldBuildableState.php',
+    'HeraldCallWebhookAction' => 'applications/herald/action/HeraldCallWebhookAction.php',
     'HeraldCommentAction' => 'applications/herald/action/HeraldCommentAction.php',
     'HeraldCommitAdapter' => 'applications/diffusion/herald/HeraldCommitAdapter.php',
     'HeraldCondition' => 'applications/herald/storage/HeraldCondition.php',
@@ -1444,6 +1445,7 @@
     'HeraldWebhook' => 'applications/herald/storage/HeraldWebhook.php',
     'HeraldWebhookCallManagementWorkflow' => 'applications/herald/management/HeraldWebhookCallManagementWorkflow.php',
     'HeraldWebhookController' => 'applications/herald/controller/HeraldWebhookController.php',
+    'HeraldWebhookDatasource' => 'applications/herald/typeahead/HeraldWebhookDatasource.php',
     'HeraldWebhookEditController' => 'applications/herald/controller/HeraldWebhookEditController.php',
     'HeraldWebhookEditEngine' => 'applications/herald/editor/HeraldWebhookEditEngine.php',
     'HeraldWebhookEditor' => 'applications/herald/editor/HeraldWebhookEditor.php',
@@ -6631,6 +6633,7 @@
     'HeraldApplyTranscript' => 'Phobject',
     'HeraldBasicFieldGroup' => 'HeraldFieldGroup',
     'HeraldBuildableState' => 'HeraldState',
+    'HeraldCallWebhookAction' => 'HeraldAction',
     'HeraldCommentAction' => 'HeraldAction',
     'HeraldCommitAdapter' => array(
       'HeraldAdapter',
@@ -6741,6 +6744,7 @@
     ),
     'HeraldWebhookCallManagementWorkflow' => 'HeraldWebhookManagementWorkflow',
     'HeraldWebhookController' => 'HeraldController',
+    'HeraldWebhookDatasource' => 'PhabricatorTypeaheadDatasource',
     'HeraldWebhookEditController' => 'HeraldWebhookController',
     'HeraldWebhookEditEngine' => 'PhabricatorEditEngine',
     'HeraldWebhookEditor' => 'PhabricatorApplicationTransactionEditor',
diff --git a/src/applications/herald/action/HeraldCallWebhookAction.php b/src/applications/herald/action/HeraldCallWebhookAction.php
new file mode 100644
--- /dev/null
+++ b/src/applications/herald/action/HeraldCallWebhookAction.php
@@ -0,0 +1,62 @@
+<?php
+
+final class HeraldCallWebhookAction extends HeraldAction {
+
+  const ACTIONCONST = 'webhook';
+  const DO_WEBHOOK = 'do.call-webhook';
+
+  public function getHeraldActionName() {
+    return pht('Call webhooks');
+  }
+
+  public function getActionGroupKey() {
+    return HeraldUtilityActionGroup::ACTIONGROUPKEY;
+  }
+
+  public function supportsObject($object) {
+    return true;
+  }
+
+  public function supportsRuleType($rule_type) {
+    return ($rule_type !== HeraldRuleTypeConfig::RULE_TYPE_PERSONAL);
+  }
+
+  public function applyEffect($object, HeraldEffect $effect) {
+    $adapter = $this->getAdapter();
+    $rule = $effect->getRule();
+    $target = $effect->getTarget();
+
+    foreach ($target as $webhook_phid) {
+      $adapter->queueWebhook($webhook_phid, $rule->getPHID());
+    }
+
+    $this->logEffect(self::DO_WEBHOOK, $target);
+  }
+
+  public function getHeraldActionStandardType() {
+    return self::STANDARD_PHID_LIST;
+  }
+
+  protected function getActionEffectMap() {
+    return array(
+      self::DO_WEBHOOK => array(
+        'icon' => 'fa-cloud-upload',
+        'color' => 'green',
+        'name' => pht('Called Webhooks'),
+      ),
+    );
+  }
+
+  public function renderActionDescription($value) {
+    return pht('Call webhooks: %s.', $this->renderHandleList($value));
+  }
+
+  protected function renderActionEffectDescription($type, $data) {
+    return pht('Called webhooks: %s.', $this->renderHandleList($data));
+  }
+
+  protected function getDatasource() {
+    return new HeraldWebhookDatasource();
+  }
+
+}
diff --git a/src/applications/herald/adapter/HeraldAdapter.php b/src/applications/herald/adapter/HeraldAdapter.php
--- a/src/applications/herald/adapter/HeraldAdapter.php
+++ b/src/applications/herald/adapter/HeraldAdapter.php
@@ -41,6 +41,7 @@
   private $viewer;
   private $mustEncryptReasons = array();
   private $actingAsPHID;
+  private $webhookMap = array();
 
   public function getEmailPHIDs() {
     return array_values($this->emailPHIDs);
@@ -1206,4 +1207,17 @@
     return $this->mustEncryptReasons;
   }
 
+
+/* -(  Webhooks  )----------------------------------------------------------- */
+
+
+  final public function queueWebhook($webhook_phid, $rule_phid) {
+    $this->webhookMap[$webhook_phid][] = $rule_phid;
+    return $this;
+  }
+
+  final public function getWebhookMap() {
+    return $this->webhookMap;
+  }
+
 }
diff --git a/src/applications/herald/typeahead/HeraldWebhookDatasource.php b/src/applications/herald/typeahead/HeraldWebhookDatasource.php
new file mode 100644
--- /dev/null
+++ b/src/applications/herald/typeahead/HeraldWebhookDatasource.php
@@ -0,0 +1,48 @@
+<?php
+
+final class HeraldWebhookDatasource
+  extends PhabricatorTypeaheadDatasource {
+
+  public function getPlaceholderText() {
+    return pht('Type a webhook name...');
+  }
+
+  public function getBrowseTitle() {
+    return pht('Browse Webhooks');
+  }
+
+  public function getDatasourceApplicationClass() {
+    return 'PhabricatorHeraldApplication';
+  }
+
+  public function loadResults() {
+    $viewer = $this->getViewer();
+    $raw_query = $this->getRawQuery();
+
+    $hooks = id(new HeraldWebhookQuery())
+      ->setViewer($viewer)
+      ->execute();
+
+    $handles = id(new PhabricatorHandleQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(mpull($hooks, 'getPHID'))
+      ->execute();
+
+    $results = array();
+    foreach ($hooks as $hook) {
+      $handle = $handles[$hook->getPHID()];
+
+      $result = id(new PhabricatorTypeaheadResult())
+        ->setName($handle->getFullName())
+        ->setPHID($handle->getPHID());
+
+      if ($hook->isDisabled()) {
+        $result->setClosed(pht('Disabled'));
+      }
+
+      $results[] = $result;
+    }
+
+    return $results;
+  }
+}
diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -1156,6 +1156,7 @@
       $adapter = $this->getHeraldAdapter();
       $this->heraldEmailPHIDs = $adapter->getEmailPHIDs();
       $this->heraldForcedEmailPHIDs = $adapter->getForcedEmailPHIDs();
+      $this->webhookMap = $adapter->getWebhookMap();
     }
 
     $xactions = $this->didApplyTransactions($object, $xactions);