diff --git a/contracts/managers/interfaces/IAssetPairManager.sol b/contracts/managers/interfaces/IAssetPairManager.sol
new file mode 100644
index 0000000..233208a
--- /dev/null
+++ b/contracts/managers/interfaces/IAssetPairManager.sol
@@ -0,0 +1,31 @@
+/*
+    Copyright 2020 Set Labs Inc.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+pragma solidity 0.5.7;
+pragma experimental "ABIEncoderV2";
+
+/**
+ * @title IAssetPairManager
+ * @author Set Protocol
+ *
+ * Interface for interacting with AssetPairManager contracts
+ */
+interface IAssetPairManager {
+    function signalConfirmationMinTime() external view returns (uint256);
+    function signalConfirmationMaxTime() external view returns (uint256);
+    function recentInitialProposeTimestamp() external view returns (uint256);
+}
+
diff --git a/contracts/managers/interfaces/IMACOStrategyManagerV2.sol b/contracts/managers/interfaces/IMACOStrategyManagerV2.sol
new file mode 100644
index 0000000..3fb1665
--- /dev/null
+++ b/contracts/managers/interfaces/IMACOStrategyManagerV2.sol
@@ -0,0 +1,31 @@
+/*
+    Copyright 2020 Set Labs Inc.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+pragma solidity 0.5.7;
+pragma experimental "ABIEncoderV2";
+
+/**
+ * @title IMACOStrategyManagerV2
+ * @author Set Protocol
+ *
+ * Interface for interacting with MACOStrategyManagerV2 contracts
+ */
+interface IMACOStrategyManagerV2 {
+    function crossoverConfirmationMinTime() external view returns (uint256);
+    function crossoverConfirmationMaxTime() external view returns (uint256);
+    function lastCrossoverConfirmationTimestamp() external view returns (uint256);
+}
+
diff --git a/package.json b/package.json
index 29c7db3..d1b12a0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "set-protocol-strategies",
-  "version": "1.1.27",
+  "version": "1.1.28",
   "main": "dist/artifacts/index.js",
   "typings": "dist/typings/artifacts/index.d.ts",
   "files": [