diff --git a/packages/contracts-bedrock/src/cannon/interfaces/IMIPS.sol b/packages/contracts-bedrock/src/cannon/interfaces/IMIPS.sol
new file mode 100644
index 000000000000..97b3dc8ef283
--- /dev/null
+++ b/packages/contracts-bedrock/src/cannon/interfaces/IMIPS.sol
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import { ISemver } from "src/universal/ISemver.sol";
+import { IPreimageOracle } from "src/cannon/interfaces/IPreimageOracle.sol";
+
+/// @title IMIPS
+/// @notice Interface for the MIPS contract.
+interface IMIPS is ISemver {
+    function oracle() external view returns (IPreimageOracle oracle_);
+    function step(bytes memory _stateData, bytes memory _proof, bytes32 _localContext) external returns (bytes32);
+}
diff --git a/packages/contracts-bedrock/src/cannon/interfaces/IMIPS2.sol b/packages/contracts-bedrock/src/cannon/interfaces/IMIPS2.sol
new file mode 100644
index 000000000000..540033433329
--- /dev/null
+++ b/packages/contracts-bedrock/src/cannon/interfaces/IMIPS2.sol
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import { ISemver } from "src/universal/ISemver.sol";
+
+/// @title IMIPS2
+/// @notice Interface for the MIPS2 contract.
+interface IMIPS2 is ISemver {
+    function step(bytes memory _stateData, bytes memory _proof, bytes32 _localContext) external returns (bytes32);
+}