diff --git a/contracts/infiniteProxy/IProxy.sol b/contracts/infiniteProxy/IProxy.sol
new file mode 100644
index 0000000..2aa7183
--- /dev/null
+++ b/contracts/infiniteProxy/IProxy.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+interface IProxy {
+    function setAdmin(address newAdmin_) external;
+
+    function setDummyImplementation(address newDummyImplementation_) external;
+
+    function addImplementation(address implementation_, bytes4[] calldata sigs_)
+        external;
+
+    function removeImplementation(address implementation_) external;
+
+    function getAdmin() external view returns (address);
+
+    function getDummyImplementation() external view returns (address);
+
+    function getImplementationSigs(address impl_)
+        external
+        view
+        returns (bytes4[] memory);
+
+    function getSigsImplementation(bytes4 sig_) external view returns (address);
+}