diff --git a/src/libraries/Constants.sol b/src/libraries/Constants.sol
new file mode 100644
index 0000000..f95e4d5
--- /dev/null
+++ b/src/libraries/Constants.sol
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity ^0.8.24;
+
+library Constants {
+    uint256 internal constant MAX_BATCH_SIZE = 50;
+    uint256 internal constant MAX_DEADLINE_OFFSET = 7 days;
+    uint256 internal constant MIN_DEADLINE_OFFSET = 1 minutes;
+    uint256 internal constant SETTLEMENT_FEE_BPS = 0;
+    uint256 internal constant BPS_DENOMINATOR = 10000;
+}