diff --git a/composer.json b/composer.json
index a6cf474..4b1cf45 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,8 @@
     "require": {
         "php": "^8.1",
         "guzzlehttp/guzzle": "^7.8",
-        "phpstan/phpdoc-parser": "^1.33"
+        "phpstan/phpdoc-parser": "^1.33",
+        "opis/json-schema": "^2.3"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.59",
diff --git a/composer.lock b/composer.lock
index 0a940bf..5b6bea7 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0e1de9afccdf23bb44b5d1e4b3d37f75",
+    "content-hash": "6f7422b6d3402672ae20118117fecc9b",
     "packages": [
         {
             "name": "guzzlehttp/guzzle",
@@ -331,6 +331,196 @@
             ],
             "time": "2024-07-18T11:15:46+00:00"
         },
+        {
+            "name": "opis/json-schema",
+            "version": "2.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/opis/json-schema.git",
+                "reference": "c48df6d7089a45f01e1c82432348f2d5976f9bfb"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/opis/json-schema/zipball/c48df6d7089a45f01e1c82432348f2d5976f9bfb",
+                "reference": "c48df6d7089a45f01e1c82432348f2d5976f9bfb",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "opis/string": "^2.0",
+                "opis/uri": "^1.0",
+                "php": "^7.4 || ^8.0"
+            },
+            "require-dev": {
+                "ext-bcmath": "*",
+                "ext-intl": "*",
+                "phpunit/phpunit": "^9.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Opis\\JsonSchema\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "authors": [
+                {
+                    "name": "Sorin Sarca",
+                    "email": "sarca_sorin@hotmail.com"
+                },
+                {
+                    "name": "Marius Sarca",
+                    "email": "marius.sarca@gmail.com"
+                }
+            ],
+            "description": "Json Schema Validator for PHP",
+            "homepage": "https://opis.io/json-schema",
+            "keywords": [
+                "json",
+                "json-schema",
+                "schema",
+                "validation",
+                "validator"
+            ],
+            "support": {
+                "issues": "https://github.com/opis/json-schema/issues",
+                "source": "https://github.com/opis/json-schema/tree/2.3.0"
+            },
+            "time": "2022-01-08T20:38:03+00:00"
+        },
+        {
+            "name": "opis/string",
+            "version": "2.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/opis/string.git",
+                "reference": "9ebf1a1f873f502f6859d11210b25a4bf5d141e7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/opis/string/zipball/9ebf1a1f873f502f6859d11210b25a4bf5d141e7",
+                "reference": "9ebf1a1f873f502f6859d11210b25a4bf5d141e7",
+                "shasum": ""
+            },
+            "require": {
+                "ext-iconv": "*",
+                "ext-json": "*",
+                "php": "^7.4 || ^8.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Opis\\String\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "authors": [
+                {
+                    "name": "Marius Sarca",
+                    "email": "marius.sarca@gmail.com"
+                },
+                {
+                    "name": "Sorin Sarca",
+                    "email": "sarca_sorin@hotmail.com"
+                }
+            ],
+            "description": "Multibyte strings as objects",
+            "homepage": "https://opis.io/string",
+            "keywords": [
+                "multi-byte",
+                "opis",
+                "string",
+                "string manipulation",
+                "utf-8"
+            ],
+            "support": {
+                "issues": "https://github.com/opis/string/issues",
+                "source": "https://github.com/opis/string/tree/2.0.1"
+            },
+            "time": "2022-01-14T15:42:23+00:00"
+        },
+        {
+            "name": "opis/uri",
+            "version": "1.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/opis/uri.git",
+                "reference": "0f3ca49ab1a5e4a6681c286e0b2cc081b93a7d5a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/opis/uri/zipball/0f3ca49ab1a5e4a6681c286e0b2cc081b93a7d5a",
+                "reference": "0f3ca49ab1a5e4a6681c286e0b2cc081b93a7d5a",
+                "shasum": ""
+            },
+            "require": {
+                "opis/string": "^2.0",
+                "php": "^7.4 || ^8.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Opis\\Uri\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "authors": [
+                {
+                    "name": "Marius Sarca",
+                    "email": "marius.sarca@gmail.com"
+                },
+                {
+                    "name": "Sorin Sarca",
+                    "email": "sarca_sorin@hotmail.com"
+                }
+            ],
+            "description": "Build, parse and validate URIs and URI-templates",
+            "homepage": "https://opis.io",
+            "keywords": [
+                "URI Template",
+                "parse url",
+                "punycode",
+                "uri",
+                "uri components",
+                "url",
+                "validate uri"
+            ],
+            "support": {
+                "issues": "https://github.com/opis/uri/issues",
+                "source": "https://github.com/opis/uri/tree/1.1.0"
+            },
+            "time": "2021-05-22T15:57:08+00:00"
+        },
         {
             "name": "phpstan/phpdoc-parser",
             "version": "1.33.0",
diff --git a/tests/api/ListingTest.php b/tests/api/ListingTest.php
index 598cffa..e24b1d1 100644
--- a/tests/api/ListingTest.php
+++ b/tests/api/ListingTest.php
@@ -14,6 +14,10 @@
 use CloudForest\ApiClientPhp\Schema\Enum\CompartmentTypeEnum;
 use CloudForest\ApiClientPhp\Schema\Enum\GeojsonGeometryTypeEnum;
 use CloudForest\ApiClientPhp\Schema\Enum\SubcompartmentTypeEnum;
+use CloudForest\ApiClientPhp\Scripts\JsonSchema;
+use Opis\JsonSchema\Validator;
+use Opis\JsonSchema\Errors\ErrorFormatter;
+
 
 final class ListingTest extends TestBase
 {
@@ -36,7 +40,7 @@ public function testCreate(): void
 
         // Inventory 2, create a centroid Geojson
         $centroid = new GeojsonSchema(GeojsonGeometryTypeEnum::Point);
-        $centroid->geometry->coordinates = [-1.05, 53.25];
+        $centroid->geometry->coordinates = [[-1.05, 53.25]];
 
         // Inventory 3, create a compartment
         $compartment = new CompartmentSchema('2');
@@ -80,6 +84,24 @@ public function testCreate(): void
         $listing->description = 'This is a test Listing from PHP Unit';
         $listing->inventory = [$compartment];
 
+        // Verify the listing's inventory can be validated against our schema
+        // This also tests the schema generation as well as ensuring the DTO
+        // produices valid JSON. The JSON encode then decode casts our schema
+        // (assoc array) and compartment data (classes) to a stdClass object for
+        // the validator.
+        $generator = new JsonSchema();
+        $schemaObj = json_decode(json_encode($generator->generate('CompartmentSchema')));
+        $compartmentObj = json_decode(json_encode($compartment));
+        $validator = new Validator();
+        $result = $validator->validate($compartmentObj, $schemaObj);
+        if ($result->isValid()) {
+            $valid = true;
+        } else {
+            $valid = false;
+            print_r((new ErrorFormatter())->format($result->error()));
+        }
+        $this->assertEquals(true, $valid);
+
         // Use the API to create the listing in CloudForest
         $listingUuid = $api->listing->create($listing);
         $this->assertIsString($listingUuid);