diff --git a/.phpcs.xml.dist b/.phpcs.xml.dist
index 01fcd5b5..16d125ff 100644
--- a/.phpcs.xml.dist
+++ b/.phpcs.xml.dist
@@ -7,6 +7,7 @@
 	<!-- Exclude composer vendor directory -->
 	<exclude-pattern>/vendor/</exclude-pattern>
 	<exclude-pattern>/node_modules/</exclude-pattern>
+	<exclude-pattern>/phpstan/</exclude-pattern>
 	<exclude-pattern>/tests/</exclude-pattern>
 
 	<!-- How to scan -->
diff --git a/composer.json b/composer.json
index fe9ea40b..b2bf0c59 100644
--- a/composer.json
+++ b/composer.json
@@ -14,12 +14,17 @@
     "phpunit/phpunit": "^9.5",
     "wpengine/wpengine-coding-standards": "dev-develop",
     "yoast/phpunit-polyfills": "^1.0",
-    "squizlabs/php_codesniffer": "^3.7"
+    "squizlabs/php_codesniffer": "^3.7",
+    "phpstan/phpstan": "^1.10",
+    "phpstan/extension-installer": "^1.3",
+    "szepeviktor/phpstan-wordpress": "^1.3",
+    "axepress/wp-graphql-stubs": "^1.14"
   },
   "scripts": {
     "lint": "parallel-lint -e php --no-colors --exclude vendor .",
     "phpcs": "phpcs",
     "phpcs:fix": "phpcbf",
+    "phpstan": "phpstan analyze --ansi --memory-limit=1G",
     "suite": [
         "@lint",
         "@phpcs",
@@ -29,7 +34,8 @@
   },
   "config": {
     "allow-plugins": {
-      "dealerdirect/phpcodesniffer-composer-installer": true
+      "dealerdirect/phpcodesniffer-composer-installer": true,
+      "phpstan/extension-installer": true
     },
     "platform": {
       "php": "7.4"
diff --git a/composer.lock b/composer.lock
index 8b6e52d6..5cdfc408 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": "bd0580e5bd2b21de0d479af4947ffaf3",
+    "content-hash": "2e54fb44a21e8cca155a7243694fad10",
     "packages": [
         {
             "name": "imangazaliev/didom",
@@ -108,6 +108,58 @@
             },
             "time": "2023-02-19T12:51:24+00:00"
         },
+        {
+            "name": "axepress/wp-graphql-stubs",
+            "version": "v1.14.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/AxeWP/wp-graphql-stubs.git",
+                "reference": "84399dce808db09a876fd79013db56af5d8da4da"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/AxeWP/wp-graphql-stubs/zipball/84399dce808db09a876fd79013db56af5d8da4da",
+                "reference": "84399dce808db09a876fd79013db56af5d8da4da",
+                "shasum": ""
+            },
+            "require": {
+                "php-stubs/wordpress-stubs": "^5.4 || ^6.0"
+            },
+            "require-dev": {
+                "php": "~7.3 || ~8.0",
+                "php-stubs/generator": "^0.8.0",
+                "phpstan/phpstan": "^1.8"
+            },
+            "suggest": {
+                "szepeviktor/phpstan-wordpress": "WordPress extensions for PHPStan"
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "WPGraphQL function and class declaration stubs for static analysis.",
+            "homepage": "https://github.com/axewp/wp-graphql-stubs",
+            "keywords": [
+                "PHPStan",
+                "graphql",
+                "static analysis",
+                "wordpress",
+                "wp-graphql",
+                "wpgraphql"
+            ],
+            "support": {
+                "issues": "https://github.com/AxeWP/wp-graphql-stubs/issues",
+                "source": "https://github.com/AxeWP/wp-graphql-stubs/tree/v1.14.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/AxeWp",
+                    "type": "github"
+                }
+            ],
+            "time": "2023-04-28T12:31:19+00:00"
+        },
         {
             "name": "brain/monkey",
             "version": "2.6.1",
@@ -729,6 +781,50 @@
             },
             "time": "2022-02-21T12:50:22+00:00"
         },
+        {
+            "name": "php-stubs/wordpress-stubs",
+            "version": "v6.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-stubs/wordpress-stubs.git",
+                "reference": "b73fe99eadf9fb56363619dac0343b6d19907dce"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-stubs/wordpress-stubs/zipball/b73fe99eadf9fb56363619dac0343b6d19907dce",
+                "reference": "b73fe99eadf9fb56363619dac0343b6d19907dce",
+                "shasum": ""
+            },
+            "require-dev": {
+                "nikic/php-parser": "< 4.12.0",
+                "php": "~7.3 || ~8.0",
+                "php-stubs/generator": "^0.8.3",
+                "phpdocumentor/reflection-docblock": "^5.3",
+                "phpstan/phpstan": "^1.9"
+            },
+            "suggest": {
+                "paragonie/sodium_compat": "Pure PHP implementation of libsodium",
+                "symfony/polyfill-php73": "Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions",
+                "szepeviktor/phpstan-wordpress": "WordPress extensions for PHPStan"
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "WordPress function and class declaration stubs for static analysis.",
+            "homepage": "https://github.com/php-stubs/wordpress-stubs",
+            "keywords": [
+                "PHPStan",
+                "static analysis",
+                "wordpress"
+            ],
+            "support": {
+                "issues": "https://github.com/php-stubs/wordpress-stubs/issues",
+                "source": "https://github.com/php-stubs/wordpress-stubs/tree/v6.2.0"
+            },
+            "time": "2023-03-31T09:48:52+00:00"
+        },
         {
             "name": "phpcompatibility/php-compatibility",
             "version": "9.3.5",
@@ -1040,6 +1136,117 @@
             },
             "time": "2023-04-17T16:27:27+00:00"
         },
+        {
+            "name": "phpstan/extension-installer",
+            "version": "1.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/extension-installer.git",
+                "reference": "f5e02d40f277d28513001976f444d9ff1dc15e9a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/extension-installer/zipball/f5e02d40f277d28513001976f444d9ff1dc15e9a",
+                "reference": "f5e02d40f277d28513001976f444d9ff1dc15e9a",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^2.0",
+                "php": "^7.2 || ^8.0",
+                "phpstan/phpstan": "^1.8.0"
+            },
+            "require-dev": {
+                "composer/composer": "^2.0",
+                "php-parallel-lint/php-parallel-lint": "^1.2.0",
+                "phpstan/phpstan-strict-rules": "^0.11 || ^0.12 || ^1.0"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "PHPStan\\ExtensionInstaller\\Plugin",
+                "phpstan/extension-installer": {
+                    "ignore": [
+                        "phpstan/phpstan-phpunit"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PHPStan\\ExtensionInstaller\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Composer plugin for automatic installation of PHPStan extensions",
+            "support": {
+                "issues": "https://github.com/phpstan/extension-installer/issues",
+                "source": "https://github.com/phpstan/extension-installer/tree/1.3.0"
+            },
+            "time": "2023-04-18T13:08:02+00:00"
+        },
+        {
+            "name": "phpstan/phpstan",
+            "version": "1.10.15",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan.git",
+                "reference": "762c4dac4da6f8756eebb80e528c3a47855da9bd"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/762c4dac4da6f8756eebb80e528c3a47855da9bd",
+                "reference": "762c4dac4da6f8756eebb80e528c3a47855da9bd",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2|^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan-shim": "*"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan - PHP Static Analysis Tool",
+            "keywords": [
+                "dev",
+                "static analysis"
+            ],
+            "support": {
+                "docs": "https://phpstan.org/user-guide/getting-started",
+                "forum": "https://github.com/phpstan/phpstan/discussions",
+                "issues": "https://github.com/phpstan/phpstan/issues",
+                "security": "https://github.com/phpstan/phpstan/security/policy",
+                "source": "https://github.com/phpstan/phpstan-src"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/ondrejmirtes",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/phpstan",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-05-09T15:28:01+00:00"
+        },
         {
             "name": "phpunit/php-code-coverage",
             "version": "9.2.26",
@@ -2482,6 +2689,144 @@
             },
             "time": "2023-02-22T23:07:41+00:00"
         },
+        {
+            "name": "symfony/polyfill-php73",
+            "version": "v1.27.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php73.git",
+                "reference": "9e8ecb5f92152187c4799efd3c96b78ccab18ff9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php73/zipball/9e8ecb5f92152187c4799efd3c96b78ccab18ff9",
+                "reference": "9e8ecb5f92152187c4799efd3c96b78ccab18ff9",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.27-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php73\\": ""
+                },
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php73/tree/v1.27.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-11-03T14:55:06+00:00"
+        },
+        {
+            "name": "szepeviktor/phpstan-wordpress",
+            "version": "v1.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/szepeviktor/phpstan-wordpress.git",
+                "reference": "5b5cc77ed51fdaf64efe3f00b5aae4b709d2cfa9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/szepeviktor/phpstan-wordpress/zipball/5b5cc77ed51fdaf64efe3f00b5aae4b709d2cfa9",
+                "reference": "5b5cc77ed51fdaf64efe3f00b5aae4b709d2cfa9",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2 || ^8.0",
+                "php-stubs/wordpress-stubs": "^4.7 || ^5.0 || ^6.0",
+                "phpstan/phpstan": "^1.10.0",
+                "symfony/polyfill-php73": "^1.12.0"
+            },
+            "require-dev": {
+                "composer/composer": "^2.1.14",
+                "dealerdirect/phpcodesniffer-composer-installer": "^1.0",
+                "php-parallel-lint/php-parallel-lint": "^1.1",
+                "phpstan/phpstan-strict-rules": "^1.2",
+                "phpunit/phpunit": "^8.0 || ^9.0",
+                "szepeviktor/phpcs-psr-12-neutron-hybrid-ruleset": "^0.8"
+            },
+            "type": "phpstan-extension",
+            "extra": {
+                "phpstan": {
+                    "includes": [
+                        "extension.neon"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "SzepeViktor\\PHPStan\\WordPress\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "WordPress extensions for PHPStan",
+            "keywords": [
+                "PHPStan",
+                "code analyse",
+                "code analysis",
+                "static analysis",
+                "wordpress"
+            ],
+            "support": {
+                "issues": "https://github.com/szepeviktor/phpstan-wordpress/issues",
+                "source": "https://github.com/szepeviktor/phpstan-wordpress/tree/v1.3.0"
+            },
+            "time": "2023-04-23T06:15:06+00:00"
+        },
         {
             "name": "theseer/tokenizer",
             "version": "1.2.1",
diff --git a/package-lock.json b/package-lock.json
index 6527c445..223ab915 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@wpengine/wp-graphql-content-blocks",
-    "version": "0.2.0",
+    "version": "0.2.1",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "@wpengine/wp-graphql-content-blocks",
-            "version": "0.2.0",
+            "version": "0.2.1",
             "devDependencies": {
                 "@changesets/cli": "^2.26.0",
                 "@wordpress/e2e-test-utils": "^8.5.0",
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 00000000..08c56625
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,11 @@
+parameters:
+		level: 0 # Gotta start somewhere
+		inferPrivatePropertyTypeFromConstructor: true
+		checkMissingIterableValueType: false
+		bootstrapFiles:
+			- phpstan/constants.php
+		paths:
+			- wp-graphql-content-blocks.php
+			- includes/
+		scanFiles:
+			- vendor/axepress/wp-graphql-stubs/wp-graphql-stubs.php
diff --git a/phpstan/constants.php b/phpstan/constants.php
new file mode 100644
index 00000000..a625cddc
--- /dev/null
+++ b/phpstan/constants.php
@@ -0,0 +1,12 @@
+<?php
+/**
+ * Constants defined in this file are to help phpstan analyze code where constants outside the plugin (WordPress core constants, etc) are being used.
+ *
+ * @package WPGraphQL\ContentBlocks
+ */
+
+define( 'WPGRAPHQL_CONTENT_BLOCKS_DIR', '' );
+define( 'WPGRAPHQL_CONTENT_BLOCKS_VERSION', '0.2.1' );
+define( 'WPGRAPHQL_CONTENT_BLOCKS_AUTOLOAD', true );
+define( 'WPGRAPHQL_CONTENT_BLOCKS_PLUGIN_FILE', 'wp-graphql-content-blocks.php' );
+define( 'WPGRAPHQL_CONTENT_BLOCKS_MIN_PHP_VERSION', '7.4' );