diff --git a/core/bin/zksync_api/src/api_server/rpc_server/types.rs b/core/bin/zksync_api/src/api_server/rpc_server/types.rs
index bba57a27a6..31bf7d147d 100644
--- a/core/bin/zksync_api/src/api_server/rpc_server/types.rs
+++ b/core/bin/zksync_api/src/api_server/rpc_server/types.rs
@@ -128,7 +128,9 @@ pub struct ContractAddressResp {
     pub gov_contract: String,
 }
 
+/// The metadata of the JSON-RPC call retrieved from the HTTP request of the call
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct RequestMetadata {
+    /// The ip of the call origin
     pub ip: String,
 }