diff --git a/src/TypeScriptSDK/helpers/class-validator.ts b/src/TypeScriptSDK/helpers/class-validator.ts
new file mode 100644
index 0000000..89efd0c
--- /dev/null
+++ b/src/TypeScriptSDK/helpers/class-validator.ts
@@ -0,0 +1,94 @@
+import { registerDecorator, ValidationOptions, ValidationArguments } from 'class-validator';
+
+
+// Custom decorator to validate nested arrays of numbers
+export function IsNestedNumberArray(validationOptions?: ValidationOptions) {
+    return function (object: Object, propertyName: string) {
+        registerDecorator({
+            name: 'isNestedNumberArray',
+            target: object.constructor,
+            propertyName: propertyName,
+            options: validationOptions,
+            validator: {
+                validate(value: any, args: ValidationArguments) {
+                    if (value === undefined || value === null) return true; // Allow optional values
+                    if (!Array.isArray(value)) return false;
+                    return value.every(
+                        (arr: any) => Array.isArray(arr) && arr.every(
+                            (subArr: any) => 
+                              (Array.isArray(subArr) && subArr.every(
+                                (num: any) => typeof num === 'number'
+                              )) || 
+                              typeof subArr === 'number'
+                        )
+                    );
+                },
+                defaultMessage(args: ValidationArguments) {
+                    return `${args.property} must be number[][] or number[][][]`;
+                }
+            }
+        });
+    };
+}
+  
+  
+// Custom decorator to validate nested arrays of numbers
+export function IsNestedIntegerArray(validationOptions?: ValidationOptions) {
+    return function (object: Object, propertyName: string) {
+        registerDecorator({
+            name: 'isNestedIntegerArray',
+            target: object.constructor,
+            propertyName: propertyName,
+            options: validationOptions,
+            validator: {
+                validate(value: any, args: ValidationArguments) {
+                    if (value === undefined || value === null) return true; // Allow optional values
+                    if (!Array.isArray(value)) return false;
+                    return value.every(
+                        (arr: any) => Array.isArray(arr) && arr.every(
+                            (subArr: any) => 
+                              (Array.isArray(subArr) && subArr.every(
+                                (num: any) => Number.isInteger(num)
+                              )) || 
+                              Number.isInteger(subArr)
+                        )
+                    );
+                },
+                defaultMessage(args: ValidationArguments) {
+                    return `${args.property} must be number[][] or number[][][]`;
+                }
+            }
+        });
+    };
+}
+
+
+// Custom decorator to validate nested arrays of numbers
+export function IsNestedStringArray(validationOptions?: ValidationOptions) {
+    return function (object: Object, propertyName: string) {
+        registerDecorator({
+            name: 'isNestedStringArray',
+            target: object.constructor,
+            propertyName: propertyName,
+            options: validationOptions,
+            validator: {
+                validate(value: any, args: ValidationArguments) {
+                    if (value === undefined || value === null) return true; // Allow optional values
+                    if (!Array.isArray(value)) return false;
+                    return value.every(
+                        (arr: any) => Array.isArray(arr) && arr.every(
+                            (subArr: any) => 
+                              (Array.isArray(subArr) && subArr.every(
+                                (num: any) => typeof num === 'string'
+                              )) || 
+                              typeof subArr === 'string'
+                        )
+                    );
+                },
+                defaultMessage(args: ValidationArguments) {
+                    return `${args.property} must be string[][] or string[][][]`;
+                }
+            }
+        });
+    };
+}
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