diff --git a/libs/ibc-go/proto/icamauth/v1beta1/query.proto b/libs/ibc-go/proto/icamauth/v1beta1/query.proto
new file mode 100644
index 0000000000..ca4563ab51
--- /dev/null
+++ b/libs/ibc-go/proto/icamauth/v1beta1/query.proto
@@ -0,0 +1,27 @@
+syntax = "proto3";
+
+package gaia.icamauth.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "google/api/annotations.proto";
+
+option go_package = "github.com/okx/exchain/x/icamauth/types";
+
+// Query defines the gRPC querier service.
+service Query {
+  // QueryInterchainAccount returns the interchain account for given owner address on a given connection pair
+  rpc InterchainAccount(QueryInterchainAccountRequest) returns (QueryInterchainAccountResponse) {
+    option (google.api.http).get = "/gaia/icamauth/v1beta1/interchain_account/owner/{owner}/connection/{connection_id}";
+  }
+}
+
+// QueryInterchainAccountRequest is the request type for the Query/InterchainAccountAddress RPC
+message QueryInterchainAccountRequest {
+  string owner                      = 1;
+  string connection_id = 2 [(gogoproto.moretags) = "yaml:\"connection_id\""];
+}
+
+// QueryInterchainAccountResponse the response type for the Query/InterchainAccountAddress RPC
+message QueryInterchainAccountResponse {
+  string interchain_account_address = 1 [(gogoproto.moretags) = "yaml:\"interchain_account_address\""];
+}
diff --git a/libs/ibc-go/proto/icamauth/v1beta1/tx.proto b/libs/ibc-go/proto/icamauth/v1beta1/tx.proto
new file mode 100644
index 0000000000..c4e44f52c4
--- /dev/null
+++ b/libs/ibc-go/proto/icamauth/v1beta1/tx.proto
@@ -0,0 +1,42 @@
+syntax = "proto3";
+
+package gaia.icamauth.v1beta1;
+
+option go_package = "github.com/okx/exchain/x/icamauth/types";
+
+import "gogoproto/gogo.proto";
+import "google/protobuf/any.proto";
+
+// Msg defines the ica Msg service.
+service Msg {
+  // Register defines a rpc handler for MsgRegisterAccount
+  rpc RegisterAccount(MsgRegisterAccount) returns (MsgRegisterAccountResponse);
+  // SubmitTx defines a rpc handler for MsgSubmitTx
+  rpc SubmitTx(MsgSubmitTx) returns (MsgSubmitTxResponse);
+}
+
+// MsgRegisterAccount defines the payload for Msg/RegisterAccount
+message MsgRegisterAccount {
+  option (gogoproto.equal) = false;
+  option (gogoproto.goproto_getters) = false;
+
+  string owner = 1;
+  string connection_id = 2 [(gogoproto.moretags) = "yaml:\"connection_id\""];
+  string version = 3;
+}
+
+// MsgRegisterAccountResponse defines the response for Msg/RegisterAccount
+message MsgRegisterAccountResponse {}
+
+// MsgSubmitTx defines the payload for Msg/SubmitTx
+message MsgSubmitTx {
+  option (gogoproto.equal) = false;
+  option (gogoproto.goproto_getters) = false;
+
+  string owner = 1;
+  string connection_id = 2 [(gogoproto.moretags) = "yaml:\"connection_id\""];
+  google.protobuf.Any msg = 3;
+}
+
+// MsgSubmitTxResponse defines the response for Msg/SubmitTx
+message MsgSubmitTxResponse {}