diff --git a/ASP.NET/Controllers/SimulationController.cs b/ASP.NET/Controllers/SimulationController.cs
index ed8f445..42ba277 100644
--- a/ASP.NET/Controllers/SimulationController.cs
+++ b/ASP.NET/Controllers/SimulationController.cs
@@ -22,5 +22,11 @@ namespace TCC.Controllers
 
             return Ok(sum);
         }
+
+        [HttpGet("json")]
+        public async Task<IActionResult> GetHarmonicProgression([FromQuery] int n)
+        {
+            return Ok(new { message = "Hello World!" });
+        }
     }
 }
diff --git a/ASP.NET/Controllers/StatusController.cs b/ASP.NET/Controllers/StatusController.cs
index 1b621ce..b510977 100644
--- a/ASP.NET/Controllers/StatusController.cs
+++ b/ASP.NET/Controllers/StatusController.cs
@@ -11,7 +11,7 @@ namespace TCC.Controllers
         [HttpGet("ok")]
         public async Task<IActionResult> ReturnOk()
         {
-            return Ok(new { status = 200 });
+            return Ok();
         }
     }
 }
diff --git a/ActixAPI/Cargo.lock b/ActixAPI/Cargo.lock
index 3784675..3df2349 100644
--- a/ActixAPI/Cargo.lock
+++ b/ActixAPI/Cargo.lock
@@ -8,8 +8,11 @@ version = "0.1.0"
 dependencies = [
  "actix-files",
  "actix-web",
+ "futures",
  "magick_rust",
  "qstring",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
@@ -549,12 +552,65 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "futures"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
 [[package]]
 name = "futures-core"
 version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
 
+[[package]]
+name = "futures-executor"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8bf34a163b5c4c52d0478a4d757da8fb65cabef42ba90515efee0f6f9fa45aaa"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.32",
+]
+
 [[package]]
 name = "futures-sink"
 version = "0.3.28"
@@ -573,10 +629,16 @@ version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"
 dependencies = [
+ "futures-channel",
  "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
  "futures-task",
+ "memchr",
  "pin-project-lite",
  "pin-utils",
+ "slab",
 ]
 
 [[package]]
diff --git a/ActixAPI/Cargo.toml b/ActixAPI/Cargo.toml
index 776380e..ddd9579 100644
--- a/ActixAPI/Cargo.toml
+++ b/ActixAPI/Cargo.toml
@@ -10,3 +10,6 @@ actix-web = "4"
 actix-files = "0.6.2"
 magick_rust = "0.19.1"
 qstring = "0.7.2"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1"
+futures = "0.3"
\ No newline at end of file
diff --git a/ActixAPI/src/main.rs b/ActixAPI/src/main.rs
index 8e13c71..d9e0718 100644
--- a/ActixAPI/src/main.rs
+++ b/ActixAPI/src/main.rs
@@ -5,7 +5,7 @@ use magick_rust::MagickWand;
 
 #[get("/status/ok")]
 async fn hello() -> impl Responder {
-    HttpResponse::Ok().body("{\"status\": 200}")
+    HttpResponse::Ok()
 }
 
 async fn static_serve(req: HttpRequest) -> Result<NamedFile> {
@@ -29,6 +29,17 @@ async fn simulation_harmonic_progression(req: HttpRequest) -> impl Responder {
     HttpResponse::Ok().body(format!("{}", sum))
 }
 
+#[get("/simulation/json")]
+async fn simulation_json() -> impl Responder {
+    // body = {"message": "Hello World"}
+    let body = serde_json::json!({
+        "message": "Hello World!"
+    });
+
+    HttpResponse::Ok()
+        .json(body)
+}
+
 #[get("/image/load-small-image")]
 async fn load_small_image() -> Result<NamedFile> {
     let real_path = "static/small-image.png";
@@ -89,6 +100,7 @@ async fn main() -> std::io::Result<()> {
             .service(save_big_image)
             .service(blur_image)
             .service(simulation_harmonic_progression)
+            .service(simulation_json)
             .app_data(web::PayloadConfig::new(1024 * 1024 * 1024))
     })
     .bind(("0.0.0.0", 5000))?
diff --git a/FlaskAPI/controllers/simulation.py b/FlaskAPI/controllers/simulation.py
index 40e3716..ab7c764 100644
--- a/FlaskAPI/controllers/simulation.py
+++ b/FlaskAPI/controllers/simulation.py
@@ -1,4 +1,4 @@
-from flask import request, Blueprint
+from flask import request, Blueprint, jsonify
 
 simulation_blueprint = Blueprint('simulation_blueprint', __name__)
 
@@ -13,6 +13,9 @@ class SimulationController:
 
         return sum
 
+    def return_helloworld(self):
+        return jsonify(message="Hello World!")
+
 simulation_controller = SimulationController()
 
 @simulation_blueprint.route('/simulation/harmonic-progression', methods=['GET'])
@@ -21,3 +24,7 @@ def return_ok():
     sum = simulation_controller.harmonic_progression(n)
 
     return str(sum), 200
+
+@simulation_blueprint.route('/simulation/json', methods=['GET'])
+def return_ok():
+    return simulation_controller.return_helloworld(), 200
diff --git a/FlaskAPI/controllers/status.py b/FlaskAPI/controllers/status.py
index 5d777ad..26097e5 100644
--- a/FlaskAPI/controllers/status.py
+++ b/FlaskAPI/controllers/status.py
@@ -2,18 +2,6 @@ from flask import jsonify, Blueprint
 
 status_blueprint = Blueprint('status_blueprint', __name__)
 
-
-class StatusController:
-    def __init__(self):
-        pass
-
-    def return_ok(self):
-        return jsonify(status=200)
-
-
-status_controller = StatusController()
-
-
 @status_blueprint.route('/status/ok', methods=['GET'])
 def return_ok():
-    return jsonify(status=200)
+    return 200