diff --git a/hyperliquid/info.py b/hyperliquid/info.py
index 360d058..9b7fe8d 100644
--- a/hyperliquid/info.py
+++ b/hyperliquid/info.py
@@ -91,6 +91,8 @@ def user_state(self, address: str, dex: str = "") -> Any:
         Args:
             address (str): Onchain address in 42-character hexadecimal format;
                             e.g. 0x0000000000000000000000000000000000000000.
+            dex (str): Perp dex name for HIP-3 builder-deployed perpetuals.
+                       Defaults to "" (the first perp dex).
         Returns:
             {
                 assetPositions: [
@@ -138,6 +140,8 @@ def open_orders(self, address: str, dex: str = "") -> Any:
         Args:
             address (str): Onchain address in 42-character hexadecimal format;
                             e.g. 0x0000000000000000000000000000000000000000.
+            dex (str): Perp dex name for HIP-3 builder-deployed perpetuals.
+                       Defaults to "" (the first perp dex).
         Returns: [
             {
                 coin: str,
@@ -159,6 +163,8 @@ def frontend_open_orders(self, address: str, dex: str = "") -> Any:
         Args:
             address (str): Onchain address in 42-character hexadecimal format;
                             e.g. 0x0000000000000000000000000000000000000000.
+            dex (str): Perp dex name for HIP-3 builder-deployed perpetuals.
+                       Defaults to "" (the first perp dex).
         Returns: [
             {
                 children:
@@ -189,6 +195,10 @@ def all_mids(self, dex: str = "") -> Any:
 
         POST /info
 
+        Args:
+            dex (str): Perp dex name for HIP-3 builder-deployed perpetuals.
+                       Defaults to "" (the first perp dex).
+
         Returns:
             {
               ATOM: float string,
@@ -275,6 +285,10 @@ def meta(self, dex: str = "") -> Meta:
 
         POST /info
 
+        Args:
+            dex (str): Perp dex name for HIP-3 builder-deployed perpetuals.
+                       Defaults to "" (the first perp dex).
+
         Returns:
             {
                 universe: [