diff --git a/tool/api_for_ismm_isat/isat.php b/tool/api_for_ismm_isat/isat.php
new file mode 100644
index 0000000000..ab0b3d138e
--- /dev/null
+++ b/tool/api_for_ismm_isat/isat.php
@@ -0,0 +1,33 @@
+<?php
+error_reporting(0);
+header('HTTP/1.1 404 Not Found');
+header('Access-Control-Allow-Origin: *');
+header('Cache-Control: private, no-cache, no-store, max-age=0');
+//
+// { Example API for IsAT }
+//
+define('JSON_FILE', './attd.json');
+//
+//
+if (!file_exists(JSON_FILE))
+{
+    die('File Not Found');
+}
+elseif ($_SERVER['REQUEST_METHOD'] != 'POST')
+{
+    echo ('OK');
+    exit;
+}
+header('Content-Type: application/json');
+$got = @json_decode(file_get_contents(JSON_FILE) , true);
+if (!is_array($got))
+{
+    die('File Error');
+}
+$fqdn = htmlspecialchars($_POST['f']);
+if (!preg_match("/^([a-z0-9]{1})([a-z0-9.-]{0,254})\.([a-z]{2,50})$/", $fqdn))
+{
+    echo ('[false,false]');
+    exit;
+}
+echo (isset($got[$fqdn]) ? '[true,true]' : '[true,false]');
\ No newline at end of file
diff --git a/tool/api_for_ismm_isat/ismm.php b/tool/api_for_ismm_isat/ismm.php
new file mode 100644
index 0000000000..c58eee5edf
--- /dev/null
+++ b/tool/api_for_ismm_isat/ismm.php
@@ -0,0 +1,49 @@
+<?php
+error_reporting(0);
+header('HTTP/1.1 404 Not Found');
+header('Access-Control-Allow-Origin: *');
+header('Cache-Control: private, no-cache, no-store, max-age=0');
+//
+// { Example API for IsMM }
+//
+define('JSON_DIR', 'listdata/');
+//
+//
+if (!file_exists(JSON_DIR) || !file_exists(JSON_DIR . 'cloudflare_e.json'))
+{
+    die('File Not Found');
+}
+elseif ($_SERVER['REQUEST_METHOD'] != 'POST')
+{
+    echo ('OK');
+    exit;
+}
+header('Content-Type: application/json');
+$fqdn = htmlspecialchars($_POST['f']);
+if (!preg_match("/^([a-z0-9]{1})([a-z0-9.-]{0,254})\.([a-z]{2,50})$/", $fqdn))
+{
+    echo ('[false,false]');
+    exit;
+}
+$domains = [];
+$fqdnP = array_reverse(explode('.', $fqdn));
+$domains[] = $fqdnP[1] . '.' . $fqdnP[0];
+if (isset($fqdnP[2]))
+{
+    $domains[] = $fqdnP[2] . '.' . $fqdnP[1] . '.' . $fqdnP[0];
+}
+foreach ($domains as $domain)
+{
+    $got = @json_decode(file_get_contents(JSON_DIR . 'cloudflare_' . $domain[0] . '.json') , true);
+    if (!is_array($got))
+    {
+        echo ('[false,false]');
+        exit;
+    }
+    if (isset($got[$domain]))
+    {
+        echo ('[true,true]');
+        exit;
+    }
+}
+echo ('[true,false]');
\ No newline at end of file