diff --git a/crates/rooch-open-rpc-spec/schemas/openrpc.json b/crates/rooch-open-rpc-spec/schemas/openrpc.json
index 72a770bd56..d286a49cd8 100644
--- a/crates/rooch-open-rpc-spec/schemas/openrpc.json
+++ b/crates/rooch-open-rpc-spec/schemas/openrpc.json
@@ -1064,7 +1064,26 @@
       },
       "DAInfoView": {
         "type": "object",
+        "required": [
+          "avail_backends"
+        ],
         "properties": {
+          "avail_backends": {
+            "type": "array",
+            "items": {
+              "type": "array",
+              "items": [
+                {
+                  "type": "string"
+                },
+                {
+                  "$ref": "#/components/schemas/u128"
+                }
+              ],
+              "maxItems": 2,
+              "minItems": 2
+            }
+          },
           "last_avail_block_number": {
             "anyOf": [
               {