diff --git a/lib/models/api/user/srp.dart b/lib/models/api/user/srp.dart
new file mode 100644
index 0000000000..0bea9dbfbe
--- /dev/null
+++ b/lib/models/api/user/srp.dart
@@ -0,0 +1,132 @@
+class SetupSRPRequest {
+  final String srpUserID;
+  final String srpSalt;
+  final String srpVerifier;
+  final String srpA;
+  final bool isUpdate;
+
+  SetupSRPRequest({
+    required this.srpUserID,
+    required this.srpSalt,
+    required this.srpVerifier,
+    required this.srpA,
+    required this.isUpdate,
+  });
+
+  Map<String, dynamic> toMap() {
+    return {
+      'srpUserID': srpUserID.toString(),
+      'srpSalt': srpSalt,
+      'srpVerifier': srpVerifier,
+      'srpA': srpA,
+      'isUpdate': isUpdate,
+    };
+  }
+
+  factory SetupSRPRequest.fromJson(Map<String, dynamic> json) {
+    return SetupSRPRequest(
+      srpUserID: json['srpUserID'],
+      srpSalt: json['srpSalt'],
+      srpVerifier: json['srpVerifier'],
+      srpA: json['srpA'],
+      isUpdate: json['isUpdate'],
+    );
+  }
+}
+
+class SetupSRPResponse {
+  final String setupID;
+  final String srpB;
+
+  SetupSRPResponse({
+    required this.setupID,
+    required this.srpB,
+  });
+
+  Map<String, dynamic> toMap() {
+    return {
+      'setupID': setupID.toString(),
+      'srpB': srpB,
+    };
+  }
+
+  factory SetupSRPResponse.fromJson(Map<String, dynamic> json) {
+    return SetupSRPResponse(
+      setupID: json['setupID'],
+      srpB: json['srpB'],
+    );
+  }
+}
+
+class CompleteSRPSetupRequest {
+  final String setupID;
+  final String srpM1;
+
+  CompleteSRPSetupRequest({
+    required this.setupID,
+    required this.srpM1,
+  });
+
+  Map<String, dynamic> toMap() {
+    return {
+      'setupID': setupID.toString(),
+      'srpM1': srpM1,
+    };
+  }
+
+  factory CompleteSRPSetupRequest.fromJson(Map<String, dynamic> json) {
+    return CompleteSRPSetupRequest(
+      setupID: json['setupID'],
+      srpM1: json['srpM1'],
+    );
+  }
+}
+class SrpAttributes {
+  final String srpUserID;
+  final String srpSalt;
+  final int memLimit;
+  final int opsLimit;
+  final String kekSalt;
+
+  SrpAttributes({
+    required this.srpUserID,
+    required this.srpSalt,
+    required this.memLimit,
+    required this.opsLimit,
+    required this.kekSalt,
+  });
+
+  factory SrpAttributes.fromMap(Map<String, dynamic> map) {
+    return SrpAttributes(
+      srpUserID: map['attributes']['srpUserID'],
+      srpSalt: map['attributes']['srpSalt'],
+      memLimit: map['attributes']['memLimit'],
+      opsLimit: map['attributes']['opsLimit'],
+      kekSalt: map['attributes']['kekSalt'],
+    );
+  }
+}
+
+class CompleteSRPSetupResponse {
+  final String setupID;
+  final String srpM2;
+
+  CompleteSRPSetupResponse({
+    required this.setupID,
+    required this.srpM2,
+  });
+
+  Map<String, dynamic> toMap() {
+    return {
+      'setupID': setupID,
+      'srpM2': srpM2,
+    };
+  }
+
+  factory CompleteSRPSetupResponse.fromJson(Map<String, dynamic> json) {
+    return CompleteSRPSetupResponse(
+      setupID: json['setupID'],
+      srpM2: json['srpM2'],
+    );
+  }
+}