diff --git a/resources/buildConfigDefinitions.js b/resources/buildConfigDefinitions.js
index 0be6e0085d..72a37cb912 100644
--- a/resources/buildConfigDefinitions.js
+++ b/resources/buildConfigDefinitions.js
@@ -254,6 +254,23 @@ function inject(t, list) {
       if (action) {
         props.push(t.objectProperty(t.stringLiteral('action'), action));
       }
+
+      if (t.isGenericTypeAnnotation(elt)) {
+        if (elt.typeAnnotation.id.name in nestedOptionEnvPrefix) {
+          props.push(
+            t.objectProperty(t.stringLiteral('type'), t.stringLiteral(elt.typeAnnotation.id.name))
+          );
+        }
+      } else if (t.isArrayTypeAnnotation(elt)) {
+        const elementType = elt.typeAnnotation.elementType;
+        if (t.isGenericTypeAnnotation(elementType)) {
+          if (elementType.id.name in nestedOptionEnvPrefix) {
+            props.push(
+              t.objectProperty(t.stringLiteral('type'), t.stringLiteral(elementType.id.name + '[]'))
+            );
+          }
+        }
+      }
       if (elt.defaultValue) {
         let parsedValue = parseDefaultValue(elt, elt.defaultValue, t);
         if (!parsedValue) {
diff --git a/spec/ParseConfigKey.spec.js b/spec/ParseConfigKey.spec.js
new file mode 100644
index 0000000000..84b2fc6e2f
--- /dev/null
+++ b/spec/ParseConfigKey.spec.js
@@ -0,0 +1,52 @@
+const Config = require('../lib/Config');
+const ParseServer = require('../lib/index').ParseServer;
+
+describe('Config Keys', () => {
+  const tests = [
+    {
+      name: 'Invalid Root Keys',
+      options: { unknow: 'val', masterKeyIPs: '' },
+      error: 'unknow, masterKeyIPs',
+    },
+    { name: 'Invalid Schema Keys', options: { schema: { Strict: 'val' } }, error: 'schema.Strict' },
+    {
+      name: 'Invalid Pages Keys',
+      options: { pages: { customUrls: { EmailVerificationSendFail: 'val' } } },
+      error: 'pages.customUrls.EmailVerificationSendFail',
+    },
+    {
+      name: 'Invalid LiveQueryServerOptions Keys',
+      options: { liveQueryServerOptions: { MasterKey: 'value' } },
+      error: 'liveQueryServerOptions.MasterKey',
+    },
+    {
+      name: 'Invalid RateLimit Keys - Array Item',
+      options: { rateLimit: [{ RequestPath: '' }, { RequestTimeWindow: '' }] },
+      error: 'rateLimit[0].RequestPath, rateLimit[1].RequestTimeWindow',
+    },
+  ];
+
+  tests.forEach(test => {
+    it(test.name, async () => {
+      const logger = require('../lib/logger').logger;
+      spyOn(logger, 'error').and.callThrough();
+      spyOn(Config, 'validateOptions').and.callFake(() => {});
+
+      new ParseServer({
+        ...defaultConfiguration,
+        ...test.options,
+      });
+      expect(logger.error).toHaveBeenCalledWith(`Invalid Option Keys Found: ${test.error}`);
+    });
+  });
+
+  it('should run fine', async () => {
+    try {
+      await reconfigureServer({
+        ...defaultConfiguration,
+      });
+    } catch (err) {
+      fail('Should run without error');
+    }
+  });
+});
diff --git a/src/Config.js b/src/Config.js
index 933cf39858..5dfd3f9588 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -64,6 +64,7 @@ export class Config {
   }
 
   static validateOptions({
+    customPages,
     publicServerURL,
     revokeSessionOnPasswordReset,
     expireInactiveSessions,
@@ -133,9 +134,18 @@ export class Config {
     this.validateRateLimit(rateLimit);
     this.validateLogLevels(logLevels);
     this.validateDatabaseOptions(databaseOptions);
+    this.validateCustomPages(customPages);
     this.validateAllowClientClassCreation(allowClientClassCreation);
   }
 
+  static validateCustomPages(customPages) {
+    if (!customPages) return;
+
+    if (Object.prototype.toString.call(customPages) !== '[object Object]') {
+      throw Error('Parse Server option customPages must be an object.');
+    }
+  }
+
   static validateControllers({
     verifyUserEmails,
     userController,
@@ -569,6 +579,7 @@ export class Config {
     if (Object.prototype.toString.call(databaseOptions) !== '[object Object]') {
       throw `databaseOptions must be an object`;
     }
+
     if (databaseOptions.enableSchemaHooks === undefined) {
       databaseOptions.enableSchemaHooks = DatabaseOptions.enableSchemaHooks.default;
     } else if (typeof databaseOptions.enableSchemaHooks !== 'boolean') {
diff --git a/src/Deprecator/Deprecations.js b/src/Deprecator/Deprecations.js
index 6fbd358fcc..38e1d52d20 100644
--- a/src/Deprecator/Deprecations.js
+++ b/src/Deprecator/Deprecations.js
@@ -15,6 +15,4 @@
  *
  * If there are no deprecations, this must return an empty array.
  */
-module.exports = [
-  { optionKey: 'encodeParseObjectInCloudFunction', changeNewDefault: 'true' },
-];
+module.exports = [{ optionKey: 'encodeParseObjectInCloudFunction', changeNewDefault: 'true' }];
diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index ee1137b7ea..27baac2258 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -54,6 +54,7 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_ACCOUNT_LOCKOUT',
     help: 'The account lockout policy for failed login attempts.',
     action: parsers.objectParser,
+    type: 'AccountLockoutOptions',
   },
   allowClientClassCreation: {
     env: 'PARSE_SERVER_ALLOW_CLIENT_CLASS_CREATION',
@@ -157,6 +158,7 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_CUSTOM_PAGES',
     help: 'custom pages for password validation and reset',
     action: parsers.objectParser,
+    type: 'CustomPagesOptions',
     default: {},
   },
   databaseAdapter: {
@@ -169,6 +171,7 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_DATABASE_OPTIONS',
     help: 'Options to pass to the database client',
     action: parsers.objectParser,
+    type: 'DatabaseOptions',
   },
   databaseURI: {
     env: 'PARSE_SERVER_DATABASE_URI',
@@ -273,6 +276,7 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_FILE_UPLOAD_OPTIONS',
     help: 'Options for file uploads',
     action: parsers.objectParser,
+    type: 'FileUploadOptions',
     default: {},
   },
   graphQLPath: {
@@ -294,6 +298,7 @@ module.exports.ParseServerOptions = {
     help:
       'Options for request idempotency to deduplicate identical requests that may be caused by network issues. Caution, this is an experimental feature that may not be appropriate for production.',
     action: parsers.objectParser,
+    type: 'IdempotencyOptions',
     default: {},
   },
   javascriptKey: {
@@ -309,11 +314,13 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_LIVE_QUERY',
     help: "parse-server's LiveQuery configuration object",
     action: parsers.objectParser,
+    type: 'LiveQueryOptions',
   },
   liveQueryServerOptions: {
     env: 'PARSE_SERVER_LIVE_QUERY_SERVER_OPTIONS',
     help: 'Live query server configuration options (will start the liveQuery server)',
     action: parsers.objectParser,
+    type: 'LiveQueryServerOptions',
   },
   loggerAdapter: {
     env: 'PARSE_SERVER_LOGGER_ADAPTER',
@@ -328,6 +335,7 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_LOG_LEVELS',
     help: '(Optional) Overrides the log levels used internally by Parse Server to log events.',
     action: parsers.objectParser,
+    type: 'LogLevels',
     default: {},
   },
   logsFolder: {
@@ -408,12 +416,14 @@ module.exports.ParseServerOptions = {
     help:
       'The options for pages such as password reset and email verification. Caution, this is an experimental feature that may not be appropriate for production.',
     action: parsers.objectParser,
+    type: 'PagesOptions',
     default: {},
   },
   passwordPolicy: {
     env: 'PARSE_SERVER_PASSWORD_POLICY',
     help: 'The password policy for enforcing password related rules.',
     action: parsers.objectParser,
+    type: 'PasswordPolicyOptions',
   },
   playgroundPath: {
     env: 'PARSE_SERVER_PLAYGROUND_PATH',
@@ -471,6 +481,7 @@ module.exports.ParseServerOptions = {
     help:
       "Options to limit repeated requests to Parse Server APIs. This can be used to protect sensitive endpoints such as `/requestPasswordReset` from brute-force attacks or Parse Server as a whole from denial-of-service (DoS) attacks.<br><br>\u2139\uFE0F Mind the following limitations:<br>- rate limits applied per IP address; this limits protection against distributed denial-of-service (DDoS) attacks where many requests are coming from various IP addresses<br>- if multiple Parse Server instances are behind a load balancer or ran in a cluster, each instance will calculate it's own request rates, independent from other instances; this limits the applicability of this feature when using a load balancer and another rate limiting solution that takes requests across all instances into account may be more suitable<br>- this feature provides basic protection against denial-of-service attacks, but a more sophisticated solution works earlier in the request flow and prevents a malicious requests to even reach a server instance; it's therefore recommended to implement a solution according to architecture and user case.",
     action: parsers.arrayParser,
+    type: 'RateLimitOptions[]',
     default: [],
   },
   readOnlyMasterKey: {
@@ -516,11 +527,13 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_SCHEMA',
     help: 'Defined schema',
     action: parsers.objectParser,
+    type: 'SchemaOptions',
   },
   security: {
     env: 'PARSE_SERVER_SECURITY',
     help: 'The security options to identify and report weak security settings.',
     action: parsers.objectParser,
+    type: 'SecurityOptions',
     default: {},
   },
   sendUserEmailVerification: {
@@ -665,12 +678,14 @@ module.exports.PagesOptions = {
     env: 'PARSE_SERVER_PAGES_CUSTOM_ROUTES',
     help: 'The custom routes.',
     action: parsers.arrayParser,
+    type: 'PagesRoute[]',
     default: [],
   },
   customUrls: {
     env: 'PARSE_SERVER_PAGES_CUSTOM_URLS',
     help: 'The URLs to the custom pages.',
     action: parsers.objectParser,
+    type: 'PagesCustomUrlsOptions',
     default: {},
   },
   enableLocalization: {
diff --git a/src/ParseServer.js b/src/ParseServer.js
index 85a8acc4f7..e8c7078a90 100644
--- a/src/ParseServer.js
+++ b/src/ParseServer.js
@@ -45,6 +45,7 @@ import { SecurityRouter } from './Routers/SecurityRouter';
 import CheckRunner from './Security/CheckRunner';
 import Deprecator from './Deprecator/Deprecator';
 import { DefinedSchemas } from './SchemaMigrations/DefinedSchemas';
+import OptionsDefinitions from './Options/Definitions';
 
 // Mutate the Parse object to add the Cloud Code handlers
 addParseCloud();
@@ -59,6 +60,58 @@ class ParseServer {
   constructor(options: ParseServerOptions) {
     // Scan for deprecated Parse Server options
     Deprecator.scanParseServerOptions(options);
+
+    const interfaces = JSON.parse(JSON.stringify(OptionsDefinitions));
+
+    function getValidObject(root) {
+      const result = {};
+      for (const key in root) {
+        if (Object.prototype.hasOwnProperty.call(root[key], 'type')) {
+          if (root[key].type.endsWith('[]')) {
+            result[key] = [getValidObject(interfaces[root[key].type.slice(0, -2)])];
+          } else {
+            result[key] = getValidObject(interfaces[root[key].type]);
+          }
+        } else {
+          result[key] = '';
+        }
+      }
+      return result;
+    }
+
+    const optionsBlueprint = getValidObject(interfaces['ParseServerOptions']);
+
+    function validateKeyNames(original, ref, name = '') {
+      let result = [];
+      const prefix = name + (name !== '' ? '.' : '');
+      for (const key in original) {
+        if (!Object.prototype.hasOwnProperty.call(ref, key)) {
+          result.push(prefix + key);
+        } else {
+          if (ref[key] === '') continue;
+          let res = [];
+          if (Array.isArray(original[key]) && Array.isArray(ref[key])) {
+            const type = ref[key][0];
+            original[key].forEach((item, idx) => {
+              if (typeof item === 'object' && item !== null) {
+                res = res.concat(validateKeyNames(item, type, prefix + key + `[${idx}]`));
+              }
+            });
+          } else if (typeof original[key] === 'object' && typeof ref[key] === 'object') {
+            res = validateKeyNames(original[key], ref[key], prefix + key);
+          }
+          result = result.concat(res);
+        }
+      }
+      return result;
+    }
+
+    const diff = validateKeyNames(options, optionsBlueprint);
+    if (diff.length > 0) {
+      const logger = logging.logger;
+      logger.error(`Invalid Option Keys Found: ${diff.join(', ')}`);
+    }
+
     // Set option defaults
     injectDefaults(options);
     const {
@@ -70,9 +123,9 @@ class ParseServer {
     // Initialize the node client SDK automatically
     Parse.initialize(appId, javascriptKey || 'unused', masterKey);
     Parse.serverURL = serverURL;
-
     Config.validateOptions(options);
     const allControllers = controllers.getControllers(options);
+
     options.state = 'initialized';
     this.config = Config.put(Object.assign({}, options, allControllers));
     this.config.masterKeyIpsStore = new Map();