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
@@ -1816,6 +1816,8 @@
     'PhabricatorAuthNewController' => 'applications/auth/controller/config/PhabricatorAuthNewController.php',
     'PhabricatorAuthOldOAuthRedirectController' => 'applications/auth/controller/PhabricatorAuthOldOAuthRedirectController.php',
     'PhabricatorAuthOneTimeLoginController' => 'applications/auth/controller/PhabricatorAuthOneTimeLoginController.php',
+    'PhabricatorAuthOneTimeLoginTemporaryTokenType' => 'applications/auth/tokentype/PhabricatorAuthOneTimeLoginTemporaryTokenType.php',
+    'PhabricatorAuthPasswordResetTemporaryTokenType' => 'applications/auth/tokentype/PhabricatorAuthPasswordResetTemporaryTokenType.php',
     'PhabricatorAuthProvider' => 'applications/auth/provider/PhabricatorAuthProvider.php',
     'PhabricatorAuthProviderConfig' => 'applications/auth/storage/PhabricatorAuthProviderConfig.php',
     'PhabricatorAuthProviderConfigController' => 'applications/auth/controller/config/PhabricatorAuthProviderConfigController.php',
@@ -1844,6 +1846,7 @@
     'PhabricatorAuthTemporaryToken' => 'applications/auth/storage/PhabricatorAuthTemporaryToken.php',
     'PhabricatorAuthTemporaryTokenGarbageCollector' => 'applications/auth/garbagecollector/PhabricatorAuthTemporaryTokenGarbageCollector.php',
     'PhabricatorAuthTemporaryTokenQuery' => 'applications/auth/query/PhabricatorAuthTemporaryTokenQuery.php',
+    'PhabricatorAuthTemporaryTokenType' => 'applications/auth/tokentype/PhabricatorAuthTemporaryTokenType.php',
     'PhabricatorAuthTerminateSessionController' => 'applications/auth/controller/PhabricatorAuthTerminateSessionController.php',
     'PhabricatorAuthTryFactorAction' => 'applications/auth/action/PhabricatorAuthTryFactorAction.php',
     'PhabricatorAuthUnlinkController' => 'applications/auth/controller/PhabricatorAuthUnlinkController.php',
@@ -6123,6 +6126,8 @@
     'PhabricatorAuthNewController' => 'PhabricatorAuthProviderConfigController',
     'PhabricatorAuthOldOAuthRedirectController' => 'PhabricatorAuthController',
     'PhabricatorAuthOneTimeLoginController' => 'PhabricatorAuthController',
+    'PhabricatorAuthOneTimeLoginTemporaryTokenType' => 'PhabricatorAuthTemporaryTokenType',
+    'PhabricatorAuthPasswordResetTemporaryTokenType' => 'PhabricatorAuthTemporaryTokenType',
     'PhabricatorAuthProvider' => 'Phobject',
     'PhabricatorAuthProviderConfig' => array(
       'PhabricatorAuthDAO',
@@ -6165,6 +6170,7 @@
     ),
     'PhabricatorAuthTemporaryTokenGarbageCollector' => 'PhabricatorGarbageCollector',
     'PhabricatorAuthTemporaryTokenQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'PhabricatorAuthTemporaryTokenType' => 'Phobject',
     'PhabricatorAuthTerminateSessionController' => 'PhabricatorAuthController',
     'PhabricatorAuthTryFactorAction' => 'PhabricatorSystemAction',
     'PhabricatorAuthUnlinkController' => 'PhabricatorAuthController',
diff --git a/src/applications/auth/storage/PhabricatorAuthTemporaryToken.php b/src/applications/auth/storage/PhabricatorAuthTemporaryToken.php
--- a/src/applications/auth/storage/PhabricatorAuthTemporaryToken.php
+++ b/src/applications/auth/storage/PhabricatorAuthTemporaryToken.php
@@ -31,14 +31,21 @@
     ) + parent::getConfiguration();
   }
 
+  private function newTokenTypeImplementation() {
+    $types = PhabricatorAuthTemporaryTokenType::getAllTypes();
+
+    $type = idx($types, $this->tokenType);
+    if ($type) {
+      return clone $type;
+    }
+
+    return null;
+  }
+
   public function getTokenReadableTypeName() {
-    // Eventually, it would be nice to let applications implement token types
-    // so we can put this in modular subclasses.
-    switch ($this->tokenType) {
-      case PhabricatorAuthSessionEngine::ONETIME_TEMPORARY_TOKEN_TYPE:
-        return pht('One-Time Login Token');
-      case PhabricatorAuthSessionEngine::PASSWORD_TEMPORARY_TOKEN_TYPE:
-        return pht('Password Reset Token');
+    $type = $this->newTokenTypeImplementation();
+    if ($type) {
+      return $type->getTokenReadableTypeName($this);
     }
 
     return $this->tokenType;
@@ -49,10 +56,9 @@
       return false;
     }
 
-    switch ($this->tokenType) {
-      case PhabricatorAuthSessionEngine::ONETIME_TEMPORARY_TOKEN_TYPE:
-      case PhabricatorAuthSessionEngine::PASSWORD_TEMPORARY_TOKEN_TYPE:
-        return true;
+    $type = $this->newTokenTypeImplementation();
+    if ($type) {
+      return $type->isTokenRevocable($this);
     }
 
     return false;
diff --git a/src/applications/auth/tokentype/PhabricatorAuthOneTimeLoginTemporaryTokenType.php b/src/applications/auth/tokentype/PhabricatorAuthOneTimeLoginTemporaryTokenType.php
new file mode 100644
--- /dev/null
+++ b/src/applications/auth/tokentype/PhabricatorAuthOneTimeLoginTemporaryTokenType.php
@@ -0,0 +1,17 @@
+<?php
+
+final class PhabricatorAuthOneTimeLoginTemporaryTokenType
+  extends PhabricatorAuthTemporaryTokenType {
+
+  const TOKENTYPE = 'login:onetime';
+
+  public function getTokenReadableTypeName(
+    PhabricatorAuthTemporaryToken $token) {
+    return pht('One-Time Login Token');
+  }
+
+  public function isTokenRevocable(PhabricatorAuthTemporaryToken $token) {
+    return true;
+  }
+
+}
diff --git a/src/applications/auth/tokentype/PhabricatorAuthPasswordResetTemporaryTokenType.php b/src/applications/auth/tokentype/PhabricatorAuthPasswordResetTemporaryTokenType.php
new file mode 100644
--- /dev/null
+++ b/src/applications/auth/tokentype/PhabricatorAuthPasswordResetTemporaryTokenType.php
@@ -0,0 +1,17 @@
+<?php
+
+final class PhabricatorAuthPasswordResetTemporaryTokenType
+  extends PhabricatorAuthTemporaryTokenType {
+
+  const TOKENTYPE = 'login:password';
+
+  public function getTokenReadableTypeName(
+    PhabricatorAuthTemporaryToken $token) {
+    return pht('Password Reset Token');
+  }
+
+  public function isTokenRevocable(PhabricatorAuthTemporaryToken $token) {
+    return true;
+  }
+
+}
diff --git a/src/applications/auth/tokentype/PhabricatorAuthTemporaryTokenType.php b/src/applications/auth/tokentype/PhabricatorAuthTemporaryTokenType.php
new file mode 100644
--- /dev/null
+++ b/src/applications/auth/tokentype/PhabricatorAuthTemporaryTokenType.php
@@ -0,0 +1,24 @@
+<?php
+
+abstract class PhabricatorAuthTemporaryTokenType
+  extends Phobject {
+
+  abstract public function getTokenReadableTypeName(
+    PhabricatorAuthTemporaryToken $token);
+
+  public function isTokenRevocable(PhabricatorAuthTemporaryToken $token) {
+    return false;
+  }
+
+  final public function getTokenTypeConstant() {
+    return $this->getPhobjectClassConstant('TOKENTYPE', 64);
+  }
+
+  final public static function getAllTypes() {
+    return id(new PhutilClassMapQuery())
+      ->setAncestorClass(__CLASS__)
+      ->setUniqueMethod('getTokenTypeConstant')
+      ->execute();
+  }
+
+}