diff --git a/lib/API/Endpoints/v1/Services.php b/lib/API/Endpoints/v1/Services.php
index 47b29154da..996248ccf4 100644
--- a/lib/API/Endpoints/v1/Services.php
+++ b/lib/API/Endpoints/v1/Services.php
@@ -19,7 +19,7 @@ class Services extends APIEndpoint {
     $this->date_time = new DateTime();
   }
 
-  function verifyMailPoetKey($data = array()) {
+  function checkMSSKey($data = array()) {
     $key = isset($data['key']) ? trim($data['key']) : null;
 
     if(!$key) {
@@ -69,7 +69,7 @@ class Services extends APIEndpoint {
     return $this->errorResponse(array(APIError::BAD_REQUEST => $error));
   }
 
-  function verifyPremiumKey($data = array()) {
+  function checkPremiumKey($data = array()) {
     $key = isset($data['key']) ? trim($data['key']) : null;
 
     if(!$key) {
diff --git a/tests/unit/API/Endpoints/v1/ServicesTest.php b/tests/unit/API/Endpoints/v1/ServicesTest.php
index 9ad506dbc8..9975eab3b2 100644
--- a/tests/unit/API/Endpoints/v1/ServicesTest.php
+++ b/tests/unit/API/Endpoints/v1/ServicesTest.php
@@ -12,7 +12,7 @@ class ServicesTest extends MailPoetTest {
   }
 
   function testItRespondsWithErrorIfNoMSSKeyIsGiven() {
-    $response = $this->services_endpoint->verifyMailPoetKey(array('key' => ''));
+    $response = $this->services_endpoint->checkMSSKey(array('key' => ''));
     expect($response->status)->equals(APIResponse::STATUS_BAD_REQUEST);
     expect($response->errors[0]['message'])->equals('Please specify a key.');
   }
@@ -23,7 +23,7 @@ class ServicesTest extends MailPoetTest {
       array('checkMSSKey' => array('state' => Bridge::MAILPOET_KEY_VALID)),
       $this
     );
-    $response = $this->services_endpoint->verifyMailPoetKey($this->data);
+    $response = $this->services_endpoint->checkMSSKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_OK);
   }
 
@@ -33,7 +33,7 @@ class ServicesTest extends MailPoetTest {
       array('checkMSSKey' => array('state' => Bridge::MAILPOET_KEY_INVALID)),
       $this
     );
-    $response = $this->services_endpoint->verifyMailPoetKey($this->data);
+    $response = $this->services_endpoint->checkMSSKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
   }
 
@@ -47,7 +47,7 @@ class ServicesTest extends MailPoetTest {
       )),
       $this
     );
-    $response = $this->services_endpoint->verifyMailPoetKey($this->data);
+    $response = $this->services_endpoint->checkMSSKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_OK);
     expect($response->data['message'])
       ->contains($date->format($this->services_endpoint->date_time->getDateFormat()));
@@ -59,7 +59,7 @@ class ServicesTest extends MailPoetTest {
       array('checkMSSKey' => array('code' => Bridge::CHECK_ERROR_UNAVAILABLE)),
       $this
     );
-    $response = $this->services_endpoint->verifyMailPoetKey($this->data);
+    $response = $this->services_endpoint->checkMSSKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
     expect($response->errors[0]['message'])->contains((string)Bridge::CHECK_ERROR_UNAVAILABLE);
   }
@@ -70,13 +70,13 @@ class ServicesTest extends MailPoetTest {
       array('checkMSSKey' => function() { throw new \Exception('test'); }),
       $this
     );
-    $response = $this->services_endpoint->verifyMailPoetKey($this->data);
+    $response = $this->services_endpoint->checkMSSKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
     expect($response->errors[0]['message'])->equals('test');
   }
 
   function testItRespondsWithErrorIfNoPremiumKeyIsGiven() {
-    $response = $this->services_endpoint->verifyPremiumKey(array('key' => ''));
+    $response = $this->services_endpoint->checkPremiumKey(array('key' => ''));
     expect($response->status)->equals(APIResponse::STATUS_BAD_REQUEST);
     expect($response->errors[0]['message'])->equals('Please specify a key.');
   }
@@ -87,7 +87,7 @@ class ServicesTest extends MailPoetTest {
       array('checkPremiumKey' => array('state' => Bridge::PREMIUM_KEY_VALID)),
       $this
     );
-    $response = $this->services_endpoint->verifyPremiumKey($this->data);
+    $response = $this->services_endpoint->checkPremiumKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_OK);
   }
 
@@ -97,7 +97,7 @@ class ServicesTest extends MailPoetTest {
       array('checkPremiumKey' => array('state' => Bridge::PREMIUM_KEY_INVALID)),
       $this
     );
-    $response = $this->services_endpoint->verifyPremiumKey($this->data);
+    $response = $this->services_endpoint->checkPremiumKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
   }
 
@@ -107,7 +107,7 @@ class ServicesTest extends MailPoetTest {
       array('checkPremiumKey' => array('state' => Bridge::PREMIUM_KEY_ALREADY_USED)),
       $this
     );
-    $response = $this->services_endpoint->verifyPremiumKey($this->data);
+    $response = $this->services_endpoint->checkPremiumKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
   }
 
@@ -121,7 +121,7 @@ class ServicesTest extends MailPoetTest {
       )),
       $this
     );
-    $response = $this->services_endpoint->verifyPremiumKey($this->data);
+    $response = $this->services_endpoint->checkPremiumKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_OK);
     expect($response->data['message'])
       ->contains($date->format($this->services_endpoint->date_time->getDateFormat()));
@@ -133,7 +133,7 @@ class ServicesTest extends MailPoetTest {
       array('checkPremiumKey' => array('code' => Bridge::CHECK_ERROR_UNAVAILABLE)),
       $this
     );
-    $response = $this->services_endpoint->verifyPremiumKey($this->data);
+    $response = $this->services_endpoint->checkPremiumKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
     expect($response->errors[0]['message'])->contains((string)Bridge::CHECK_ERROR_UNAVAILABLE);
   }
@@ -144,7 +144,7 @@ class ServicesTest extends MailPoetTest {
       array('checkPremiumKey' => function() { throw new \Exception('test'); }),
       $this
     );
-    $response = $this->services_endpoint->verifyPremiumKey($this->data);
+    $response = $this->services_endpoint->checkPremiumKey($this->data);
     expect($response->status)->equals(APIResponse::STATUS_NOT_FOUND);
     expect($response->errors[0]['message'])->equals('test');
   }
diff --git a/views/settings/mta.html b/views/settings/mta.html
index 1ed9a8e999..778a734187 100644
--- a/views/settings/mta.html
+++ b/views/settings/mta.html
@@ -754,7 +754,7 @@
         MailPoet.Ajax.post({
           api_version: window.mailpoet_api_version,
           endpoint: 'services',
-          action: 'verifyMailPoetKey',
+          action: 'checkMSSKey',
           data: {
             key: key
           }
diff --git a/views/settings/premium.html b/views/settings/premium.html
index 0d412485d0..4a57345d80 100644
--- a/views/settings/premium.html
+++ b/views/settings/premium.html
@@ -86,7 +86,7 @@
         MailPoet.Ajax.post({
           api_version: window.mailpoet_api_version,
           endpoint: 'services',
-          action: 'verifyPremiumKey',
+          action: 'checkPremiumKey',
           data: {
             key: key
           }