diff --git a/op/mantle/sepolia/rollup.json b/op/mantle/sepolia/rollup.json
new file mode 100644
index 00000000..7ffde0a4
--- /dev/null
+++ b/op/mantle/sepolia/rollup.json
@@ -0,0 +1,32 @@
+{
+  "genesis": {
+    "l1": {
+      "hash": "0x041dea101b3d09fee3dc566c9de820eca07d9d0e951853257c64c79fe4b90f25",
+      "number": 4858225
+    },
+    "l2": {
+      "hash": "0x227de3c9c89eb8b8f88a26a06abe125c0d9c7a95a8213f7c83d098e7391bbde6",
+      "number": 325709
+    },
+    "l2_time": 1702194288,
+    "system_config": {
+      "batcherAddr": "0x5fb5139834df283b6a4bd7267952f3ea21a573f4",
+      "overhead": "0x0000000000000000000000000000000000000000000000000000000000000834",
+      "scalar": "0x00000000000000000000000000000000000000000000000000000000000f4240",
+      "baseFee": 1000000000,
+      "gasLimit": 1125899906842624
+    }
+  },
+  "block_time": 2,
+  "max_sequencer_drift": 600,
+  "seq_window_size": 3600,
+  "channel_timeout": 300,
+  "l1_chain_id": 11155111,
+  "l2_chain_id": 5003,
+  "regolith_time": 0,
+  "batch_inbox_address": "0xFFEEDDCcBbAA0000000000000000000000000000",
+  "deposit_contract_address": "0xb3db4bd5bc225930ed674494f9a4f6a11b8efbc8",
+  "l1_system_config_address": "0x04b34526c91424e955d13c7226bc4385e57e6706",
+  "mantle_da_switch": true,
+  "datalayr_service_manager_addr": "0xd7f17171896461A6EB74f95DF3f9b0D966A8a907"
+}
\ No newline at end of file