diff --git a/lib/Zyberspace/SteamWebApi/Interfaces/IDOTA2Teams_570.php b/lib/Zyberspace/SteamWebApi/Interfaces/IDOTA2Teams_570.php
new file mode 100644
index 0000000..cc96a1b
--- /dev/null
+++ b/lib/Zyberspace/SteamWebApi/Interfaces/IDOTA2Teams_570.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Zyberspace\SteamWebApi\Interfaces;
+
+use Zyberspace\SteamWebApi\AbstractInterface;
+class IDOTA2Teams_570 extends AbstractInterface
+{
+    /**
+     * /IDOTA2Teams_570/GetTeamInfo/v1/
+     *
+     * @param uint32 $team_id Team ID that you're requesting info about
+     * @param uint32 $league_id League ID for which you're requesting all regisered teams info
+     */
+    public function GetTeamInfoV1($team_id = null, $league_id = null)
+    {
+        return $this->_call(__METHOD__, 'GET', array('team_id' => $team_id, 'league_id' => $league_id));
+    }
+}
diff --git a/lib/Zyberspace/SteamWebApi/Interfaces/IInventoryService.php b/lib/Zyberspace/SteamWebApi/Interfaces/IInventoryService.php
new file mode 100644
index 0000000..808e067
--- /dev/null
+++ b/lib/Zyberspace/SteamWebApi/Interfaces/IInventoryService.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Zyberspace\SteamWebApi\Interfaces;
+
+use Zyberspace\SteamWebApi\AbstractInterface;
+class IInventoryService extends AbstractInterface
+{
+    /**
+     * /IInventoryService/GetPriceSheet/v1/
+     *
+     * @param int32 $ecurrency
+     */
+    public function GetPriceSheetV1($ecurrency)
+    {
+        return $this->_call(__METHOD__, 'GET', array('ecurrency' => $ecurrency));
+    }
+}
diff --git a/lib/Zyberspace/SteamWebApi/Interfaces/ISteamBitPay.php b/lib/Zyberspace/SteamWebApi/Interfaces/ISteamBitPay.php
new file mode 100644
index 0000000..f32a8ad
--- /dev/null
+++ b/lib/Zyberspace/SteamWebApi/Interfaces/ISteamBitPay.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Zyberspace\SteamWebApi\Interfaces;
+
+use Zyberspace\SteamWebApi\AbstractInterface;
+class ISteamBitPay extends AbstractInterface
+{
+    /**
+     * /ISteamBitPay/BitPayPaymentNotification/v1/
+     *
+     */
+    public function BitPayPaymentNotificationV1()
+    {
+        return $this->_call(__METHOD__, 'POST', array());
+    }
+}