diff --git a/src/IIsmpHost.sol b/src/IIsmpHost.sol
index f73dfbe..40709ab 100644
--- a/src/IIsmpHost.sol
+++ b/src/IIsmpHost.sol
@@ -76,9 +76,17 @@ interface IIsmpHost is IDispatcher {
 
 	/**
 	 * @param height - state machine height
+	 * @notice collects the state commitment fee in the `feeToken()`
 	 * @return the state commitment at `height`
 	 */
-	function stateMachineCommitment(StateMachineHeight memory height) external returns (StateCommitment memory);
+	function stateCommitment(StateMachineHeight memory height) external returns (StateCommitment memory);
+
+	/**
+	 * @param height - state machine height
+	 * @notice collects the state commitment fee in the native tokens
+	 * @return the state commitment at `height`
+	 */
+	function stateCommitmentWithNative(StateMachineHeight memory height) external payable returns (StateCommitment memory);
 
 	/**
 	 * @param height - state machine height