diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index b0214c7b75..5f07bc88d1 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -211,6 +211,7 @@ phutil_register_library_map(array(
     'ConduitCallTestCase' => 'applications/conduit/call/__tests__/ConduitCallTestCase.php',
     'ConduitConnectConduitAPIMethod' => 'applications/conduit/method/ConduitConnectConduitAPIMethod.php',
     'ConduitConnectionGarbageCollector' => 'applications/conduit/garbagecollector/ConduitConnectionGarbageCollector.php',
+    'ConduitDeprecatedCallSetupCheck' => 'applications/conduit/check/ConduitDeprecatedCallSetupCheck.php',
     'ConduitException' => 'applications/conduit/protocol/exception/ConduitException.php',
     'ConduitGetCapabilitiesConduitAPIMethod' => 'applications/conduit/method/ConduitGetCapabilitiesConduitAPIMethod.php',
     'ConduitGetCertificateConduitAPIMethod' => 'applications/conduit/method/ConduitGetCertificateConduitAPIMethod.php',
@@ -3321,6 +3322,7 @@ phutil_register_library_map(array(
     'ConduitCallTestCase' => 'PhabricatorTestCase',
     'ConduitConnectConduitAPIMethod' => 'ConduitAPIMethod',
     'ConduitConnectionGarbageCollector' => 'PhabricatorGarbageCollector',
+    'ConduitDeprecatedCallSetupCheck' => 'PhabricatorSetupCheck',
     'ConduitException' => 'Exception',
     'ConduitGetCapabilitiesConduitAPIMethod' => 'ConduitAPIMethod',
     'ConduitGetCertificateConduitAPIMethod' => 'ConduitAPIMethod',
diff --git a/src/applications/conduit/check/ConduitDeprecatedCallSetupCheck.php b/src/applications/conduit/check/ConduitDeprecatedCallSetupCheck.php
new file mode 100644
index 0000000000..464244d826
--- /dev/null
+++ b/src/applications/conduit/check/ConduitDeprecatedCallSetupCheck.php
@@ -0,0 +1,64 @@
+<?php
+
+final class ConduitDeprecatedCallSetupCheck extends PhabricatorSetupCheck {
+
+  protected function executeChecks() {
+    $methods = id(new PhabricatorConduitMethodQuery())
+      ->setViewer(PhabricatorUser::getOmnipotentUser())
+      ->withIsDeprecated(true)
+      ->execute();
+    if (!$methods) {
+      return;
+    }
+
+    $method_names = mpull($methods, 'getAPIMethodName');
+
+    $table = new PhabricatorConduitMethodCallLog();
+    $conn_r = $table->establishConnection('r');
+
+    $calls = queryfx_all(
+      $conn_r,
+      'SELECT DISTINCT method FROM %T WHERE dateCreated > %d
+        AND method IN (%Ls)',
+      $table->getTableName(),
+      time() - (60 * 60 * 24 * 30),
+      $method_names);
+    $calls = ipull($calls, 'method', 'method');
+
+    foreach ($calls as $method_name) {
+      $method = $methods[$method_name];
+
+      $summary = pht(
+        'Deprecated Conduit method `%s` was called in the last 30 days. '.
+        'You should migrate away from use of this method: it will be '.
+        'removed in a future version of Phabricator.',
+        $method_name);
+
+      $uri = PhabricatorEnv::getURI('/conduit/log/?methods='.$method_name);
+
+      $description = $method->getMethodStatusDescription();
+
+      $message = pht(
+        'Deprecated Conduit method %s was called in the last 30 days. '.
+        'You should migrate away from use of this method: it will be '.
+        'removed in a future version of Phabricator.'.
+        "\n\n".
+        "%s: %s".
+        "\n\n".
+        'If you have already migrated all callers away from this method, '.
+        'you can safely ignore this setup issue.',
+        phutil_tag('tt', array(), $method_name),
+        phutil_tag('tt', array(), $method_name),
+        $description);
+
+      $this
+        ->newIssue('conduit.deprecated.'.$method_name)
+        ->setShortName(pht('Deprecated Conduit Method'))
+        ->setName(pht('Deprecated Conduit Method "%s" In Use', $method_name))
+        ->setSummary($summary)
+        ->setMessage($message)
+        ->addLink($uri, pht('View Method Call Logs'));
+    }
+  }
+
+}