diff --git a/build/rust/Cargo.lock b/build/rust/Cargo.lock
index baa9c6a..627d455 100644
--- a/build/rust/Cargo.lock
+++ b/build/rust/Cargo.lock
@@ -1054,7 +1054,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
 [[package]]
-name = "tucana-internal"
+name = "tucana"
 version = "0.0.0"
 dependencies = [
  "prost",
diff --git a/build/rust/build.rs b/build/rust/build.rs
index d2ca984..25567a2 100644
--- a/build/rust/build.rs
+++ b/build/rust/build.rs
@@ -10,7 +10,8 @@ fn main() -> Result<()> {
         "flow.proto",
         "action.proto",
         "transfer.proto",
-        "ping.proto"
+        "ping.proto",
+        "action_execute.proto"
     ];
 
     let inclusions = &[
diff --git a/proto/aquila/action_execute.proto b/proto/aquila/action_execute.proto
new file mode 100644
index 0000000..d70bb1a
--- /dev/null
+++ b/proto/aquila/action_execute.proto
@@ -0,0 +1,34 @@
+syntax = "proto3";
+
+option ruby_package = "Tucana::Aquila";
+
+package aquila;
+
+message ActionCallRequest {
+  string identifier = 1;
+  repeated string parameters = 2;
+}
+
+message ActionCallResponse {
+  string execution_identifier = 1;
+}
+
+message ActionResult {
+  repeated string result = 1;
+}
+
+message ActionResultRequest {
+  string execution_identifier = 1;
+}
+
+message ActionResultResponse {
+  optional ActionResult action_result = 1;
+}
+
+service ActionCallService {
+  rpc Call (ActionCallRequest) returns (ActionCallResponse);
+}
+
+service ActionResultService {
+  rpc GetResult (ActionResultRequest) returns (ActionResultResponse);
+}
\ No newline at end of file
diff --git a/proto/aquila/transfer.proto b/proto/aquila/transfer.proto
index 0c8a899..afd8a94 100644
--- a/proto/aquila/transfer.proto
+++ b/proto/aquila/transfer.proto
@@ -16,6 +16,18 @@ message InformationResponse {
   bool success = 1;
 }
 
+message ActionExecuteRequest {
+  string execution_identifier = 1;
+  string function_identifier = 2;
+  repeated string parameters = 3;
+}
+
+message ActionExecuteResponse {
+  string execution_identifier = 1;
+  repeated string result = 2;
+}
+
 service ActionTransferService {
   rpc Transfer (stream InformationRequest) returns (InformationResponse);
+  rpc Execute (stream ActionExecuteRequest) returns (stream ActionExecuteResponse);
 }
\ No newline at end of file