diff --git a/src/main/java/api_assured/ApiUtilities.java b/src/main/java/api_assured/ApiUtilities.java
index 59fe6d2..3a10ed4 100644
--- a/src/main/java/api_assured/ApiUtilities.java
+++ b/src/main/java/api_assured/ApiUtilities.java
@@ -19,6 +19,7 @@
 import static utils.reflection.ReflectionUtilities.iterativeConditionalInvocation;
 
 @SuppressWarnings("unused")
+@Deprecated(since = "1.7.4")
 public abstract class ApiUtilities extends Caller {
 
     public static Printer log = new Printer(ApiUtilities.class);
diff --git a/src/main/java/api_assured/Caller.java b/src/main/java/api_assured/Caller.java
index 66267f1..ab2caf6 100644
--- a/src/main/java/api_assured/Caller.java
+++ b/src/main/java/api_assured/Caller.java
@@ -8,13 +8,11 @@
 import retrofit2.Call;
 import retrofit2.Response;
 import utils.*;
-import utils.reflection.ReflectionUtilities;
-
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.util.Objects;
-
-import static utils.MappingUtilities.Json.*;
+import static utils.mapping.MappingUtilities.Json.fromJsonString;
+import static utils.mapping.MappingUtilities.Json.getJsonString;
 import static utils.reflection.ReflectionUtilities.getPreviousMethodName;
 import static utils.StringUtilities.Color.*;
 import static utils.reflection.ReflectionUtilities.isOfType;
@@ -29,6 +27,7 @@
  * @version 1.4.0 (Documented in 1.4.0, released in an earlier version)
  */
 @SuppressWarnings("unused")
+@Deprecated(since = "1.7.4")
 public abstract class Caller {
 
     /**
@@ -175,7 +174,7 @@ private static <T> Response<T> getResponse(Call<T> call, boolean printBody) thro
      * @return A deserialized error object instance of type {@code Model}.
      * @throws RuntimeException if there's an issue processing the error content or deserializing it.
      *
-     * @see MappingUtilities.Json#fromJsonString(String, Class)
+     * @see utils.mapping.MappingUtilities.Json#fromJsonString(String, Class)
      */
     @SuppressWarnings("unchecked")
     private static <ErrorModel> ErrorModel getErrorObject(Response<?> response, Class<ErrorModel> errorModel) throws JsonProcessingException {
@@ -253,8 +252,8 @@ private static <ResponseModel> Response<ResponseModel> call(
      * @return A deserialized error model instance of type {@code ErrorModel} if a match is found.
      * @throws RuntimeException if none of the provided error models match the error content of the response.
      *
-     * @see MappingUtilities.Json#fromJsonString(String, Class)
-     * @see MappingUtilities.Json#getJsonStringFor(Object)
+     * @see utils.mapping.MappingUtilities.Json#fromJsonString(String, Class)
+     * @see utils.mapping.MappingUtilities.Json#getJsonStringFor(Object)
      * @see #getErrorObject(Response, Class)
      */
     @SuppressWarnings("unchecked")
diff --git a/src/main/java/api_assured/ResponsePair.java b/src/main/java/api_assured/ResponsePair.java
index eb3135d..10fbb70 100644
--- a/src/main/java/api_assured/ResponsePair.java
+++ b/src/main/java/api_assured/ResponsePair.java
@@ -6,4 +6,5 @@
  * @param <Response> expected Response-SuccessModel-
  * @param <ErrorBody> potential error body
  */
+@Deprecated(since = "1.7.4")
 public record ResponsePair<Response, ErrorBody>(Response response, ErrorBody errorBody) { }
diff --git a/src/main/java/api_assured/ServiceGenerator.java b/src/main/java/api_assured/ServiceGenerator.java
index 57561ba..f888c26 100644
--- a/src/main/java/api_assured/ServiceGenerator.java
+++ b/src/main/java/api_assured/ServiceGenerator.java
@@ -37,6 +37,7 @@
  * @version 1.4.0 (Documented in 1.4.0, released in version 1.0.0)
  */
 @SuppressWarnings({"unused", "UnusedReturnValue"})
+@Deprecated(since = "1.7.4")
 public class ServiceGenerator {
 
     OkHttpClient client;
diff --git a/src/main/java/api_assured/exceptions/FailedCallException.java b/src/main/java/api_assured/exceptions/FailedCallException.java
index 90b33d4..507c63c 100644
--- a/src/main/java/api_assured/exceptions/FailedCallException.java
+++ b/src/main/java/api_assured/exceptions/FailedCallException.java
@@ -3,6 +3,7 @@
 /**
  * This class represents an exception that is thrown when a call fails.
  */
+@Deprecated(since = "1.7.4")
 public class FailedCallException extends RuntimeException {
 
     /**
diff --git a/src/main/java/api_assured/exceptions/JavaUtilitiesException.java b/src/main/java/api_assured/exceptions/JavaUtilitiesException.java
index 05d10fc..3d1b94d 100644
--- a/src/main/java/api_assured/exceptions/JavaUtilitiesException.java
+++ b/src/main/java/api_assured/exceptions/JavaUtilitiesException.java
@@ -3,6 +3,7 @@
 /**
  * This class represents an exception that is thrown when an error occurs in JavaUtilities.
  */
+@Deprecated(since = "1.7.4")
 public class JavaUtilitiesException extends RuntimeException {
 
     /**