diff --git a/internal/migrations/erc20-bridge/000-extension.sql b/internal/migrations/erc20-bridge/000-extension.sql
new file mode 100644
index 000000000..3e4f82127
--- /dev/null
+++ b/internal/migrations/erc20-bridge/000-extension.sql
@@ -0,0 +1,5 @@
+-- Only necessary to run on leader and validator nodes.
+USE erc20_bridge {
+    chain: 'sepolia',
+    escrow: '0x1c6D0d1666E3Ea3896c0A94018B03Ca117C15762',
+} AS sepolia_bridge;
\ No newline at end of file
diff --git a/internal/migrations/erc20-bridge/001-actions.sql b/internal/migrations/erc20-bridge/001-actions.sql
new file mode 100644
index 000000000..b80d1313f
--- /dev/null
+++ b/internal/migrations/erc20-bridge/001-actions.sql
@@ -0,0 +1,11 @@
+-- TESTNET
+CREATE OR REPLACE ACTION sepolia_wallet_balance($wallet_address TEXT) PUBLIC VIEW RETURNS (balance NUMERIC(78, 0)) {
+  $balance := sepolia_bridge.balance($wallet_address);
+  return $balance;
+};
+
+-- MAINNET
+CREATE OR REPLACE ACTION mainnet_wallet_balance($wallet_address TEXT) PUBLIC VIEW RETURNS (balance NUMERIC(78, 0)) {
+  $balance := mainnet_bridge.balance($wallet_address);
+  return $balance;
+};
\ No newline at end of file