diff --git a/modules/rest_api.py b/modules/rest_api.py
index 1245bf83..9d86800f 100644
--- a/modules/rest_api.py
+++ b/modules/rest_api.py
@@ -43,6 +43,7 @@ class Response(object):
     def get_data(self):
         return self._data
 
+_module = None
 _bot = None
 _events = None
 _log = None
@@ -77,28 +78,9 @@ class Handler(http.server.BaseHTTPRequestHandler):
     def _minify_setting(self):
         return _bot.get_setting("rest-api-minify", False)
 
-    def url_for(self, headers, route, endpoint, get_params={}):
-        config_host = _bot.get_setting("rest-api-host", None)
-
-        host = None
-        if not config_host == None:
-            host = config_host
-        elif "Host" in headers:
-            header_host, _, port = headers["Host"].partition(":")
-            if not port:
-                port = _bot.config.get("api-port", DEFAULT_PUBLIC_PORT)
-            host = "%s:%s" % (header_host, port)
-
-        if host:
-            get_params_str = ""
-            if get_params:
-                get_params_str = "?%s" % urllib.parse.urlencode(get_params)
-            return "%s/%s/%s%s" % (host, route, endpoint, get_params_str)
-        else:
-            return None
     def _url_for(self, headers):
         return lambda route, endpoint, get_params={}: self.url_for(
-            headers, route, endpoint, get_params)
+            route, endpoint, get_params, headers.get("Host", None))
 
     def _handle(self, method, path, endpoint, args):
         headers = utils.CaseInsensitiveDict(dict(self.headers.items()))
@@ -174,6 +156,9 @@ class BitBotIPv6HTTPd(http.server.HTTPServer):
     utils.Setting("rest-api-host", "Public hostname:port for the REST API"))
 class Module(ModuleManager.BaseModule):
     def on_load(self):
+        global _module
+        _module = self
+
         global _bot
         _bot = self.bot
 
@@ -183,6 +168,8 @@ class Module(ModuleManager.BaseModule):
         global _log
         _log = self.log
 
+        self.exports.add("url-for", self._url_for)
+
         self.httpd = None
         if self.bot.get_setting("rest-api", False):
             port = int(self.bot.config.get("api-port", str(DEFAULT_PORT)))
@@ -211,3 +198,19 @@ class Module(ModuleManager.BaseModule):
             "permissions": event["args_split"][1:]
         })
         event["stdout"].write("New API key ('%s'): %s" % (comment, api_key))
+
+    def _url_for(self, route, endpoint, get_params={}, host_override=None):
+        host = host_override or self.bot.get_setting("rest-api-host", None)
+
+        host, _, port = host.partition(":")
+        if not port:
+            port = str(_bot.config.get("api-port", DEFAULT_PUBLIC_PORT))
+        host = "%s:%s" % (host, port)
+
+        if host:
+            get_params_str = ""
+            if get_params:
+                get_params_str = "?%s" % urllib.parse.urlencode(get_params)
+            return "%s/%s/%s%s" % (host, route, endpoint, get_params_str)
+        else:
+            return None