diff --git a/plugins/ApiLogger/ApiLoggerPlugin.php b/plugins/ApiLogger/ApiLoggerPlugin.php
new file mode 100644
index 0000000000..3a60e212d1
--- /dev/null
+++ b/plugins/ApiLogger/ApiLoggerPlugin.php
@@ -0,0 +1,69 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * @package ApiLoggerPlugin
+ * @maintainer Brion Vibber <brion@status.net>
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+class ApiLoggerPlugin extends Plugin
+{
+    // Lower this to do random sampling of API requests rather than all.
+    // 0.1 will check about 10% of hits, etc.
+    public $frequency = 1.0;
+
+    function onArgsInitialize($args)
+    {
+        if (isset($args['action'])) {
+            $action = strtolower($args['action']);
+            if (substr($action, 0, 3) == 'api') {
+                if ($this->frequency < 1.0 && $this->frequency > 0.0) {
+                    $max = mt_getrandmax();
+                    $n = mt_rand() / $max;
+                    if ($n > $this->frequency) {
+                        return true;
+                    }
+                }
+                $uri = $_SERVER['REQUEST_URI'];
+
+                $method = $_SERVER['REQUEST_METHOD'];
+                $ssl = empty($_SERVER['HTTPS']) ? 'no' : 'yes';
+                $cookie = empty($_SERVER['HTTP_COOKIE']) ? 'no' : 'yes';
+                $etag = empty($_SERVER['HTTP_IF_MATCH']) ? 'no' : 'yes';
+                $last = empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? 'no' : 'yes';
+                $auth = empty($_SERVER['HTTP_AUTHORIZATION']) ? 'no' : 'yes';
+                $agent = empty($_SERVER['HTTP_USER_AGENT']) ? 'no' : $_SERVER['HTTP_USER_AGENT'];
+
+                $query = (strpos($uri, '?') === false) ? 'no' : 'yes';
+                if ($query == 'yes') {
+                    if (preg_match('/\?since_id=\d+$/', $uri)) {
+                        $query = 'since_id';
+                    }
+                }
+
+                common_log(LOG_INFO, "STATLOG action:$action method:$method ssl:$ssl query:$query cookie:$cookie auth:$auth ifmatch:$etag ifmod:$last agent:$agent");
+            }
+        }
+        return true;
+    }
+}