diff --git a/android/src/main/kotlin/id/passage/passage_flutter/PassageFlutter.kt b/android/src/main/kotlin/id/passage/passage_flutter/PassageFlutter.kt
index dd5c8a8..e9a6f8e 100644
--- a/android/src/main/kotlin/id/passage/passage_flutter/PassageFlutter.kt
+++ b/android/src/main/kotlin/id/passage/passage_flutter/PassageFlutter.kt
@@ -103,9 +103,10 @@ internal class PassageFlutter(private val activity: Activity, appId: String) {
 
     fun newRegisterOneTimePasscode(call: MethodCall, result: MethodChannel.Result) {
         val identifier = call.argument<String>("identifier") ?: return invalidArgumentError(result)
+        val language = call.argument<String?>("language")
         CoroutineScope(Dispatchers.IO).launch {
             try {
-                val otpId = passage.oneTimePasscode.register(identifier).otpId
+                val otpId = passage.oneTimePasscode.register(identifier, language).otpId
                 result.success(otpId)
             } catch (e: Exception) {
                 result.error(PassageFlutterError.OTP_ERROR.name, e.message, e.toString())
@@ -115,9 +116,10 @@ internal class PassageFlutter(private val activity: Activity, appId: String) {
 
     fun newLoginOneTimePasscode(call: MethodCall, result: MethodChannel.Result) {
         val identifier = call.argument<String>("identifier") ?: return invalidArgumentError(result)
+        val language = call.argument<String?>("language")
         CoroutineScope(Dispatchers.IO).launch {
             try {
-                val otpId = passage.oneTimePasscode.login(identifier).otpId
+                val otpId = passage.oneTimePasscode.login(identifier, language).otpId
                 result.success(otpId)
             } catch (e: Exception) {
                 result.error(PassageFlutterError.OTP_ERROR.name, e.message, e.toString())
@@ -151,9 +153,10 @@ internal class PassageFlutter(private val activity: Activity, appId: String) {
 
     fun newRegisterMagicLink(call: MethodCall, result: MethodChannel.Result) {
         val identifier = call.argument<String>("identifier") ?: return invalidArgumentError(result)
+        val language = call.argument<String?>("language")
         CoroutineScope(Dispatchers.IO).launch {
             try {
-                val magicLinkId = passage.magicLink.register(identifier).id
+                val magicLinkId = passage.magicLink.register(identifier, language).id
                 result.success(magicLinkId)
             } catch (e: Exception) {
                 result.error(PassageFlutterError.MAGIC_LINK_ERROR.name, e.message, e.toString())
@@ -163,9 +166,10 @@ internal class PassageFlutter(private val activity: Activity, appId: String) {
 
     fun newLoginMagicLink(call: MethodCall, result: MethodChannel.Result) {
         val identifier = call.argument<String>("identifier") ?: return invalidArgumentError(result)
+        val language = call.argument<String?>("language")
         CoroutineScope(Dispatchers.IO).launch {
             try {
-                val magicLinkId = passage.magicLink.login(identifier).id
+                val magicLinkId = passage.magicLink.login(identifier, language).id
                 result.success(magicLinkId)
             } catch (e: Exception) {
                 result.error(PassageFlutterError.MAGIC_LINK_ERROR.name, e.message, e.toString())
@@ -419,12 +423,13 @@ internal class PassageFlutter(private val activity: Activity, appId: String) {
 
     fun changeEmail(call: MethodCall, result: MethodChannel.Result) {
         val newEmail = call.argument<String>("newEmail") ?: return invalidArgumentError(result)
+        val language = call.argument<String?>("language")
         CoroutineScope(Dispatchers.IO).launch {
             try {
                 val user = passage.currentUser.userInfo() ?: throw PassageUserUnauthorizedException(
                     "User is not authorized."
                 )
-                val magicLinkId = passage.currentUser.changeEmail(newEmail)?.id
+                val magicLinkId = passage.currentUser.changeEmail(newEmail, language)?.id
                 result.success(magicLinkId)
             } catch (e: Exception) {
                 val error = when (e) {
@@ -441,10 +446,11 @@ internal class PassageFlutter(private val activity: Activity, appId: String) {
 
     fun changePhone(call: MethodCall, result: MethodChannel.Result) {
         val newPhone = call.argument<String>("newPhone") ?: return invalidArgumentError(result)
+        val language = call.argument<String?>("language")
         CoroutineScope(Dispatchers.IO).launch {
             try {
                 val user = passage.currentUser.userInfo()
-                val magicLinkId = passage.currentUser.changePhone(newPhone)?.id
+                val magicLinkId = passage.currentUser.changePhone(newPhone, language)?.id
                 result.success(magicLinkId)
             } catch (e: Exception) {
                 val error = when (e) {
diff --git a/integrationtestapp/integration_test/change_user_info_test.dart b/integrationtestapp/integration_test/change_user_info_test.dart
index 7f6911d..1c4150e 100644
--- a/integrationtestapp/integration_test/change_user_info_test.dart
+++ b/integrationtestapp/integration_test/change_user_info_test.dart
@@ -47,7 +47,7 @@ void main() {
         await loginWithMagicLink();
         final date = DateTime.now().millisecondsSinceEpoch;
         final identifier = 'authentigator+$date@passage.id';
-        final response = await passage.currentUser.changeEmail(identifier);
+        final response = await passage.currentUser.changeEmail(identifier, language: "es");
         expect(response, isNotNull);
       } catch (e) {
         fail('Test failed due to unexpected exception: $e');
diff --git a/integrationtestapp/integration_test/magic_link_test.dart b/integrationtestapp/integration_test/magic_link_test.dart
index 555ea25..e909ba3 100644
--- a/integrationtestapp/integration_test/magic_link_test.dart
+++ b/integrationtestapp/integration_test/magic_link_test.dart
@@ -109,7 +109,7 @@ void main() {
     test('testActivateLoginMagicLink', () async {
       try {
         await passage.magiclink.login(
-            IntegrationTestConfig.existingUserEmailMagicLink);
+            IntegrationTestConfig.existingUserEmailMagicLink, language:"es");
         await Future.delayed(const Duration(
             milliseconds: IntegrationTestConfig.waitTimeMilliseconds));
         final magicLinkStr = await MailosaurAPIClient.getMostRecentMagicLink();
diff --git a/integrationtestapp/integration_test/otp_test.dart b/integrationtestapp/integration_test/otp_test.dart
index 435903d..8417ed3 100644
--- a/integrationtestapp/integration_test/otp_test.dart
+++ b/integrationtestapp/integration_test/otp_test.dart
@@ -71,7 +71,7 @@ void main() {
         final identifier =
             "authentigator+$date@${MailosaurAPIClient.serverId}.mailosaur.net";
         try {
-          final oneTimePasscode = (await passage.oneTimePasscode.register(identifier));
+          final oneTimePasscode = (await passage.oneTimePasscode.register(identifier, language: 'es'));
           await Future.delayed(const Duration(
               milliseconds: IntegrationTestConfig.waitTimeMilliseconds));
           final otp = await MailosaurAPIClient.getMostRecentOneTimePasscode();
diff --git a/integrationtestapp/ios/Podfile.lock b/integrationtestapp/ios/Podfile.lock
index 53f60e8..bfd9449 100644
--- a/integrationtestapp/ios/Podfile.lock
+++ b/integrationtestapp/ios/Podfile.lock
@@ -3,7 +3,7 @@ PODS:
   - Flutter (1.0.0)
   - integration_test (0.0.1):
     - Flutter
-  - passage_flutter (1.0.0):
+  - passage_flutter (1.1.1):
     - Flutter
     - PassageSwift (= 1.0.2)
   - PassageSwift (1.0.2):
@@ -30,8 +30,8 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   AnyCodable-FlightSchool: 9d48ed579c898378e189bb0a89faebf9eb8a46a7
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
-  integration_test: ce0a3ffa1de96d1a89ca0ac26fca7ea18a749ef4
-  passage_flutter: 60c06e8730750f0516d86fc14c4fb25087b827db
+  integration_test: 252f60fa39af5e17c3aa9899d35d908a0721b573
+  passage_flutter: 46098def9413ab67515fd61d485a878ea1550dda
   PassageSwift: 0874d7abdd8e57e92c1ae6ead0d59c6024f8867b
 
 PODFILE CHECKSUM: 6a26cacf19c7fcde87d9c59e8f24986138e82f3b
diff --git a/integrationtestapp/pubspec.lock b/integrationtestapp/pubspec.lock
index 66a9f3c..56eae35 100644
--- a/integrationtestapp/pubspec.lock
+++ b/integrationtestapp/pubspec.lock
@@ -405,7 +405,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.1.0"
+    version: "1.1.1"
   path:
     dependency: transitive
     description:
diff --git a/ios/Classes/PassageFlutter.swift b/ios/Classes/PassageFlutter.swift
index 793ce4f..fa57e7a 100644
--- a/ios/Classes/PassageFlutter.swift
+++ b/ios/Classes/PassageFlutter.swift
@@ -85,9 +85,10 @@ internal class PassageFlutter {
             result(error)
             return
         }
+        let language = (arguments as? [String: Any])?["language"] as? String
         Task {
             do {
-                let otp = try await passage.oneTimePasscode.register(identifier: identifier)
+                let otp = try await passage.oneTimePasscode.register(identifier: identifier, language: language)
                 result(otp.otpId)
             } catch {
                 let error = FlutterError(
@@ -106,9 +107,10 @@ internal class PassageFlutter {
             result(error)
             return
         }
+        let language = (arguments as? [String: Any])?["language"] as? String
         Task {
             do {
-                let otp = try await passage.oneTimePasscode.login(identifier: identifier)
+                let otp = try await passage.oneTimePasscode.login(identifier: identifier, language: language)
                 result(otp.otpId)
             } catch {
                 let error = FlutterError(
@@ -154,9 +156,10 @@ internal class PassageFlutter {
             result(error)
             return
         }
+        let language = (arguments as? [String: Any])?["language"] as? String
         Task {
             do {
-                let ml = try await passage.magicLink.register(identifier: identifier)
+                let ml = try await passage.magicLink.register(identifier: identifier, language: language)
                 result(ml.id)
             } catch {
                 let error = FlutterError(
@@ -175,9 +178,10 @@ internal class PassageFlutter {
             result(error)
             return
         }
+        let language = (arguments as? [String: Any])?["language"] as? String
         Task {
             do {
-                let ml = try await passage.magicLink.login(identifier: identifier)
+                let ml = try await passage.magicLink.login(identifier: identifier, language: language)
                 result(ml.id)
             } catch {
                 let error = FlutterError(
@@ -421,14 +425,15 @@ internal class PassageFlutter {
     }
     
     internal func changeEmail(arguments: Any?, result: @escaping FlutterResult) {
-        guard let newEmail = (arguments as? [String: String])?["newEmail"] else {
+        guard let newEmail = (arguments as? [String: Any])?["newEmail"] as? String else {
             let error = PassageFlutterError.INVALID_ARGUMENT.defaultFlutterError
             result(error)
             return
         }
+        let language = (arguments as? [String: Any])?["language"] as? String
         Task {
             do {
-                let magicLink = try await passage.currentUser.changeEmail(newEmail: newEmail)
+                let magicLink = try await passage.currentUser.changeEmail(newEmail: newEmail, language: language)
                 result(magicLink.id)
             } catch let error as CurrentUserError {
                 result(handleCurrentUserError(error))
@@ -444,14 +449,15 @@ internal class PassageFlutter {
     }
     
     internal func changePhone(arguments: Any?, result: @escaping FlutterResult) {
-        guard let newPhone = (arguments as? [String: String])?["newPhone"] else {
+         guard let newPhone = (arguments as? [String: Any])?["newPhone"] as? String else {
             let error = PassageFlutterError.INVALID_ARGUMENT.defaultFlutterError
             result(error)
             return
         }
+        let language = (arguments as? [String: Any])?["language"] as? String
         Task {
             do {
-                let magicLink = try await passage.currentUser.changePhone(newPhone: newPhone)
+                let magicLink = try await passage.currentUser.changePhone(newPhone: newPhone, language: language)
                 result(magicLink.id)
             } catch let error as CurrentUserError {
                 result(handleCurrentUserError(error))
diff --git a/lib/passage_current_user.dart b/lib/passage_current_user.dart
index 858efc1..05cdab8 100644
--- a/lib/passage_current_user.dart
+++ b/lib/passage_current_user.dart
@@ -22,6 +22,7 @@ class PassageCurrentUser {
   ///
   /// Parameters:
   ///  - `newEmail`: The user's new email.
+  /// - `language`: The language code for the email change.
   ///
   /// Returns:
   ///  A `Future<MagicLink>` representing the magic link
@@ -29,7 +30,7 @@ class PassageCurrentUser {
   /// Throws:
   ///  `PassageError`
   Future<MagicLink> changeEmail(String newEmail, {String? language}) {
-    return PassageFlutterPlatform.instance.changeEmail(newEmail);
+    return PassageFlutterPlatform.instance.changeEmail(newEmail, language);
   }
 
   /// Initiates a phone number change for the authenticated user. A phone change requires verification,
@@ -37,6 +38,7 @@ class PassageCurrentUser {
   ///
   /// Parameters:
   ///  - `newPhone`: The user's new phone number.
+  ///  - The language code for the phone change.
   ///
   /// Returns:
   ///  A `Future<MagicLink>` representing the magic link
@@ -44,7 +46,7 @@ class PassageCurrentUser {
   /// Throws:
   ///  `PassageError`
   Future<MagicLink> changePhone(String newPhone, {String? language}) {
-    return PassageFlutterPlatform.instance.changePhone(newPhone);
+    return PassageFlutterPlatform.instance.changePhone(newPhone, language);
   }
 
   /// Attempts to create and register a new passkey for the authenticated user.
diff --git a/lib/passage_flutter_platform/passage_flutter_method_channel.dart b/lib/passage_flutter_platform/passage_flutter_method_channel.dart
index be0c232..0d16217 100644
--- a/lib/passage_flutter_platform/passage_flutter_method_channel.dart
+++ b/lib/passage_flutter_platform/passage_flutter_method_channel.dart
@@ -63,10 +63,10 @@ class MethodChannelPassageFlutter extends PassageFlutterPlatform {
   // OTP METHODS
 
   @override
-  Future<String> newRegisterOneTimePasscode(String identifier) async {
+  Future<String> newRegisterOneTimePasscode(String identifier, String? language) async {
     try {
       final result = await methodChannel.invokeMethod<String>(
-          'newRegisterOneTimePasscode', {'identifier': identifier});
+          'newRegisterOneTimePasscode', {'identifier': identifier, 'language': language});
       return result!;
     } catch (e) {
       throw PassageError.fromObject(object: e);
@@ -74,10 +74,10 @@ class MethodChannelPassageFlutter extends PassageFlutterPlatform {
   }
 
   @override
-  Future<String> newLoginOneTimePasscode(String identifier) async {
+  Future<String> newLoginOneTimePasscode(String identifier, String? language) async {
     try {
       final result = await methodChannel.invokeMethod<String>(
-          'newLoginOneTimePasscode', {'identifier': identifier});
+          'newLoginOneTimePasscode', {'identifier': identifier, 'language': language});
       return result!;
     } catch (e) {
       throw PassageError.fromObject(object: e);
@@ -98,10 +98,10 @@ class MethodChannelPassageFlutter extends PassageFlutterPlatform {
   // MAGIC LINK METHODS
 
   @override
-  Future<String> newRegisterMagicLink(String identifier) async {
+  Future<String> newRegisterMagicLink(String identifier, String? language) async {
     try {
       final result = await methodChannel.invokeMethod<String>(
-          'newRegisterMagicLink', {'identifier': identifier});
+          'newRegisterMagicLink', {'identifier': identifier, 'language': language});
       return result!;
     } catch (e) {
       throw PassageError.fromObject(object: e);
@@ -109,10 +109,10 @@ class MethodChannelPassageFlutter extends PassageFlutterPlatform {
   }
 
   @override
-  Future<String> newLoginMagicLink(String identifier) async {
+  Future<String> newLoginMagicLink(String identifier, String? language) async {
     try {
       final result = await methodChannel.invokeMethod<String>(
-          'newLoginMagicLink', {'identifier': identifier});
+          'newLoginMagicLink', {'identifier': identifier, 'language': language});
       return result!;
     } catch (e) {
       throw PassageError.fromObject(object: e);
@@ -316,10 +316,10 @@ class MethodChannelPassageFlutter extends PassageFlutterPlatform {
   }
 
   @override
-  Future<MagicLink> changeEmail(String newEmail) async {
+  Future<MagicLink> changeEmail(String newEmail, String? language) async {
     try {
       final magicLinkId = await methodChannel
-          .invokeMethod<String>('changeEmail', {'newEmail': newEmail});
+          .invokeMethod<String>('changeEmail', {'newEmail': newEmail, 'language': language});
       return MagicLink(magicLinkId!);
     } catch (e) {
       throw PassageError.fromObject(object: e);
@@ -327,10 +327,10 @@ class MethodChannelPassageFlutter extends PassageFlutterPlatform {
   }
 
   @override
-  Future<MagicLink> changePhone(String newPhone) async {
+  Future<MagicLink> changePhone(String newPhone, String? language) async {
     try {
       final magicLinkId = await methodChannel
-          .invokeMethod<String>('changePhone', {'newPhone': newPhone});
+          .invokeMethod<String>('changePhone', {'newPhone': newPhone, 'language': language});
       return MagicLink(magicLinkId!);
     } catch (e) {
       throw PassageError.fromObject(object: e);
diff --git a/lib/passage_flutter_platform/passage_flutter_platform_interface.dart b/lib/passage_flutter_platform/passage_flutter_platform_interface.dart
index dd5e370..876d727 100644
--- a/lib/passage_flutter_platform/passage_flutter_platform_interface.dart
+++ b/lib/passage_flutter_platform/passage_flutter_platform_interface.dart
@@ -54,12 +54,12 @@ abstract class PassageFlutterPlatform extends PlatformInterface {
 
   // OTP METHODS
 
-  Future<String> newRegisterOneTimePasscode(String identifier) {
+  Future<String> newRegisterOneTimePasscode(String identifier, String? language) {
     throw UnimplementedError(
         'newRegisterOneTimePasscode() has not been implemented.');
   }
 
-  Future<String> newLoginOneTimePasscode(String identifier) {
+  Future<String> newLoginOneTimePasscode(String identifier, String? language) {
     throw UnimplementedError(
         'newLoginOneTimePasscode() has not been implemented.');
   }
@@ -71,12 +71,12 @@ abstract class PassageFlutterPlatform extends PlatformInterface {
 
   // MAGIC LINK METHODS
 
-  Future<String> newRegisterMagicLink(String identifier) {
+  Future<String> newRegisterMagicLink(String identifier, String? language) {
     throw UnimplementedError(
         'newRegisterMagicLink() has not been implemented.');
   }
 
-  Future<String> newLoginMagicLink(String identifier) {
+  Future<String> newLoginMagicLink(String identifier, String? language) {
     throw UnimplementedError('newLoginMagicLink() has not been implemented.');
   }
 
@@ -153,11 +153,11 @@ abstract class PassageFlutterPlatform extends PlatformInterface {
     throw UnimplementedError('editPasskeyName() has not been implemented.');
   }
 
-  Future<MagicLink> changeEmail(String newEmail) {
+  Future<MagicLink> changeEmail(String newEmail, String? language) {
     throw UnimplementedError('changeEmail() has not been implemented.');
   }
 
-  Future<MagicLink> changePhone(String newPhone) {
+  Future<MagicLink> changePhone(String newPhone, String? language) {
     throw UnimplementedError('changePhone() has not been implemented.');
   }
 
diff --git a/lib/passage_flutter_web.dart b/lib/passage_flutter_web.dart
index 49b24d0..44885a1 100644
--- a/lib/passage_flutter_web.dart
+++ b/lib/passage_flutter_web.dart
@@ -98,12 +98,12 @@ class PassageFlutterWeb extends PassageFlutterPlatform {
   // OTP METHODS
 
   @override
-  Future<String> newRegisterOneTimePasscode(String identifier) async {
+  Future<String> newRegisterOneTimePasscode(String identifier,  String? language) async {
     try {
-      final resultPromise = passage.oneTimePasscode.register(identifier);
+      final resultPromise = passage.oneTimePasscode.register(identifier, language);
       final jsObject = await js_util.promiseToFuture(resultPromise);
       final resultMap = jsObjectToMap(jsObject);
-      return resultMap['otp_id'];
+      return resultMap['otpId'];
     } catch (e) {
       throw PassageError.fromObject(
           object: e, overrideCode: PassageErrorCode.otpError);
@@ -111,9 +111,9 @@ class PassageFlutterWeb extends PassageFlutterPlatform {
   }
 
   @override
-  Future<String> newLoginOneTimePasscode(String identifier) async {
+  Future<String> newLoginOneTimePasscode(String identifier, String? language) async {
     try {
-      final resultPromise = passage.oneTimePasscode.login(identifier);
+      final resultPromise = passage.oneTimePasscode.login(identifier, language);
       final jsObject = await js_util.promiseToFuture(resultPromise);
       final resultMap = jsObjectToMap(jsObject);
       return resultMap['otpId'];
@@ -140,9 +140,9 @@ class PassageFlutterWeb extends PassageFlutterPlatform {
   // MAGIC LINK METHODS
 
   @override
-  Future<String> newRegisterMagicLink(String identifier) async {
+  Future<String> newRegisterMagicLink(String identifier, String? language) async {
     try {
-      final resultPromise = passage.magicLink.register(identifier);
+      final resultPromise = passage.magicLink.register(identifier, language);
       final jsObject = await js_util.promiseToFuture(resultPromise);
       final resultMap = jsObjectToMap(jsObject);
       return resultMap['id'];
@@ -153,9 +153,9 @@ class PassageFlutterWeb extends PassageFlutterPlatform {
   }
 
   @override
-  Future<String> newLoginMagicLink(String identifier) async {
+  Future<String> newLoginMagicLink(String identifier, String? language) async {
     try {
-      final resultPromise = passage.magicLink.login(identifier);
+      final resultPromise = passage.magicLink.login(identifier, language);
       final jsObject = await js_util.promiseToFuture(resultPromise);
       final resultMap = jsObjectToMap(jsObject);
       return resultMap['id'];
@@ -372,9 +372,9 @@ class PassageFlutterWeb extends PassageFlutterPlatform {
   }
 
   @override
-  Future<MagicLink> changeEmail(String newEmail) async {
+  Future<MagicLink> changeEmail(String newEmail, String? language) async {
     try {
-      final resultPromise = passage.currentUser.changeEmail(newEmail);
+      final resultPromise = passage.currentUser.changeEmail(newEmail, language);
       final jsObject = await js_util.promiseToFuture(resultPromise);
       return MagicLink(jsObject.id);
     } catch (e) {
@@ -384,9 +384,9 @@ class PassageFlutterWeb extends PassageFlutterPlatform {
   }
 
   @override
-  Future<MagicLink> changePhone(String newPhone) async {
+  Future<MagicLink> changePhone(String newPhone, String? language) async {
     try {
-      final resultPromise = passage.currentUser.changePhone(newPhone);
+      final resultPromise = passage.currentUser.changePhone(newPhone, language);
       final jsObject = await js_util.promiseToFuture(resultPromise);
       return MagicLink(jsObject.id);
     } catch (e) {
diff --git a/lib/passage_magliclink.dart b/lib/passage_magliclink.dart
index 2628d67..d066c42 100644
--- a/lib/passage_magliclink.dart
+++ b/lib/passage_magliclink.dart
@@ -17,7 +17,7 @@ class PassageMagiclink {
   /// Throws:
   ///  `PassageError`
   Future<MagicLink> register(String identifier, {String? language}) async {
-    String magicLinkId = await PassageFlutterPlatform.instance.newRegisterMagicLink(identifier);
+    String magicLinkId = await PassageFlutterPlatform.instance.newRegisterMagicLink(identifier, language);
     return MagicLink(magicLinkId);
   }
 
@@ -35,7 +35,7 @@ class PassageMagiclink {
   /// Throws:
   ///  `PassageError`
   Future<MagicLink> login(String identifier, {String? language}) async {
-    String magicLinkId = await PassageFlutterPlatform.instance.newLoginMagicLink(identifier);
+    String magicLinkId = await PassageFlutterPlatform.instance.newLoginMagicLink(identifier, language);
     return MagicLink(magicLinkId);
   }
 
diff --git a/lib/passage_otp.dart b/lib/passage_otp.dart
index 3bab59f..0db7912 100644
--- a/lib/passage_otp.dart
+++ b/lib/passage_otp.dart
@@ -18,7 +18,7 @@ class PassageOneTimePasscode {
   ///  `PassageError`
   Future<OneTimePasscode> register(String identifier, {String? language}) async {
     String oneTimePasscodeId =  await PassageFlutterPlatform.instance
-        .newRegisterOneTimePasscode(identifier);
+        .newRegisterOneTimePasscode(identifier, language);
     return OneTimePasscode(oneTimePasscodeId);
 
   }
@@ -37,7 +37,7 @@ class PassageOneTimePasscode {
   ///  `PassageError`
 
   Future<OneTimePasscode> login(String identifier, {String? language}) async {
-    String oneTimePasscodeId =  await  PassageFlutterPlatform.instance.newLoginOneTimePasscode(identifier);
+    String oneTimePasscodeId =  await  PassageFlutterPlatform.instance.newLoginOneTimePasscode(identifier, language);
     return OneTimePasscode(oneTimePasscodeId);
   }
 
diff --git a/lib/passage_social.dart b/lib/passage_social.dart
index 3fd02e8..4d48fd7 100644
--- a/lib/passage_social.dart
+++ b/lib/passage_social.dart
@@ -3,15 +3,45 @@ import 'passage_flutter_models/passage_social_connection.dart';
 import 'passage_flutter_platform/passage_flutter_platform_interface.dart';
 
 class PassageSocial {
+  /// Initiates the authorization process using a third-party social provider.
+  /// 
+  /// This method opens the social provider's authentication interface. 
+  /// The behavior may vary based on the platform and the underlying implementation.
+  ///
+  /// - [connection]: The social connection to use for login (e.g., Google, Apple).
+  /// 
+  /// Returns a `Future<void>` that completes when the authorization process is initiated.
+  /// Throws:
+  ///  `PassageError`
   Future<void> authorize(SocialConnection connection) {
-      return PassageFlutterPlatform.instance.authorizeWith(connection);
+    return PassageFlutterPlatform.instance.authorizeWith(connection);
   }
 
+  /// Completes the social authentication process using the provided authorization code.
+  /// 
+  /// After receiving the authorization code from the social provider, 
+  /// this method exchanges it for authentication credentials.
+  ///
+  /// - [code]: The authorization code received from the social provider.
+  /// 
+  /// Returns a `Future<AuthResult>` containing the authentication result.
+  /// Throws:
+  ///  `PassageError`
   Future<AuthResult> finish(String code) {
     return PassageFlutterPlatform.instance.finishSocialAuthentication(code);
   }
 
+  /// Initiates the authorization process for iOS-specific social providers (IOS Only).
+  /// 
+  /// This method is specific to iOS and allows for platform-specific behavior 
+  /// when authorizing with social providers.
+  ///
+  /// - [connection]: The social connection to use for login (e.g., Google, Apple).
+  /// 
+  /// Returns a `Future<AuthResult>` containing the authentication result.
+  /// Throws:
+  ///  `PassageError`
   Future<AuthResult> authorizeIOS(SocialConnection connection) {
     return PassageFlutterPlatform.instance.authorizeIOSWith(connection);
   }
-}
\ No newline at end of file
+}