diff --git a/packages/shorebird_code_push_protocol/lib/src/models/app.dart b/packages/shorebird_code_push_protocol/lib/src/models/app.dart
index f4b7208e..f4cd792a 100644
--- a/packages/shorebird_code_push_protocol/lib/src/models/app.dart
+++ b/packages/shorebird_code_push_protocol/lib/src/models/app.dart
@@ -3,7 +3,7 @@ import 'package:json_annotation/json_annotation.dart';
 part 'app.g.dart';
 
 /// {@template app}
-/// A single app which contains zero or more releases.
+/// The application downloaded and run on various devices/platforms.
 /// {@endtemplate}
 @JsonSerializable()
 class App {
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/artifact.dart b/packages/shorebird_code_push_protocol/lib/src/models/artifact.dart
new file mode 100644
index 00000000..31d9df8f
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/lib/src/models/artifact.dart
@@ -0,0 +1,45 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'artifact.g.dart';
+
+/// {@template artifact}
+/// An artifact contains metadata about the contents of a specific patch
+/// for a specific platform and architecture.
+/// {@endtemplate}
+@JsonSerializable()
+class Artifact {
+  /// {@macro artifact}
+  const Artifact({
+    required this.id,
+    required this.patchId,
+    required this.arch,
+    required this.platform,
+    required this.hash,
+    required this.url,
+  });
+
+  /// Converts a Map<String, dynamic> to a [Artifact]
+  factory Artifact.fromJson(Map<String, dynamic> json) =>
+      _$ArtifactFromJson(json);
+
+  /// Converts a [Artifact] to a Map<String, dynamic>
+  Map<String, dynamic> toJson() => _$ArtifactToJson(this);
+
+  /// The ID of the artifact;
+  final int id;
+
+  /// The ID of the patch.
+  final int patchId;
+
+  /// The arch of the artifact.
+  final String arch;
+
+  /// The platform of the artifact.
+  final String platform;
+
+  /// The hash of the artifact.
+  final String hash;
+
+  /// The url of the artifact.
+  final String url;
+}
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/artifact.g.dart b/packages/shorebird_code_push_protocol/lib/src/models/artifact.g.dart
new file mode 100644
index 00000000..4e373180
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/lib/src/models/artifact.g.dart
@@ -0,0 +1,35 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+// ignore_for_file: implicit_dynamic_parameter, require_trailing_commas, cast_nullable_to_non_nullable, lines_longer_than_80_chars
+
+part of 'artifact.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+Artifact _$ArtifactFromJson(Map<String, dynamic> json) => $checkedCreate(
+      'Artifact',
+      json,
+      ($checkedConvert) {
+        final val = Artifact(
+          id: $checkedConvert('id', (v) => v as int),
+          patchId: $checkedConvert('patch_id', (v) => v as int),
+          arch: $checkedConvert('arch', (v) => v as String),
+          platform: $checkedConvert('platform', (v) => v as String),
+          hash: $checkedConvert('hash', (v) => v as String),
+          url: $checkedConvert('url', (v) => v as String),
+        );
+        return val;
+      },
+      fieldKeyMap: const {'patchId': 'patch_id'},
+    );
+
+Map<String, dynamic> _$ArtifactToJson(Artifact instance) => <String, dynamic>{
+      'id': instance.id,
+      'patch_id': instance.patchId,
+      'arch': instance.arch,
+      'platform': instance.platform,
+      'hash': instance.hash,
+      'url': instance.url,
+    };
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/channel.dart b/packages/shorebird_code_push_protocol/lib/src/models/channel.dart
new file mode 100644
index 00000000..96cc0964
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/lib/src/models/channel.dart
@@ -0,0 +1,30 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'channel.g.dart';
+
+/// {@template channel}
+/// A tag used to manage the subset of applications that receive a patch.
+/// By default, a "stable" channel is created and
+/// used by devices to query for available patches.
+/// {@endtemplate}
+@JsonSerializable()
+class Channel {
+  /// {@macro channel}
+  const Channel({required this.id, required this.appId, required this.name});
+
+  /// Converts a Map<String, dynamic> to a [Channel]
+  factory Channel.fromJson(Map<String, dynamic> json) =>
+      _$ChannelFromJson(json);
+
+  /// Converts a [Channel] to a Map<String, dynamic>
+  Map<String, dynamic> toJson() => _$ChannelToJson(this);
+
+  /// The ID of the channel;
+  final int id;
+
+  /// The ID of the app.
+  final String appId;
+
+  /// The channel name.
+  final String name;
+}
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/channel.g.dart b/packages/shorebird_code_push_protocol/lib/src/models/channel.g.dart
new file mode 100644
index 00000000..2ddcafe4
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/lib/src/models/channel.g.dart
@@ -0,0 +1,29 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+// ignore_for_file: implicit_dynamic_parameter, require_trailing_commas, cast_nullable_to_non_nullable, lines_longer_than_80_chars
+
+part of 'channel.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+Channel _$ChannelFromJson(Map<String, dynamic> json) => $checkedCreate(
+      'Channel',
+      json,
+      ($checkedConvert) {
+        final val = Channel(
+          id: $checkedConvert('id', (v) => v as int),
+          appId: $checkedConvert('app_id', (v) => v as String),
+          name: $checkedConvert('name', (v) => v as String),
+        );
+        return val;
+      },
+      fieldKeyMap: const {'appId': 'app_id'},
+    );
+
+Map<String, dynamic> _$ChannelToJson(Channel instance) => <String, dynamic>{
+      'id': instance.id,
+      'app_id': instance.appId,
+      'name': instance.name,
+    };
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/models.dart b/packages/shorebird_code_push_protocol/lib/src/models/models.dart
index 1fb56cb4..9528d002 100644
--- a/packages/shorebird_code_push_protocol/lib/src/models/models.dart
+++ b/packages/shorebird_code_push_protocol/lib/src/models/models.dart
@@ -1,5 +1,8 @@
 export 'app.dart';
 export 'app_metadata.dart';
+export 'artifact.dart';
+export 'channel.dart';
 export 'error_response.dart';
 export 'patch.dart';
+export 'release.dart';
 export 'user.dart';
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/patch.dart b/packages/shorebird_code_push_protocol/lib/src/models/patch.dart
index 07ddb9ad..b91b09db 100644
--- a/packages/shorebird_code_push_protocol/lib/src/models/patch.dart
+++ b/packages/shorebird_code_push_protocol/lib/src/models/patch.dart
@@ -3,7 +3,9 @@ import 'package:json_annotation/json_annotation.dart';
 part 'patch.g.dart';
 
 /// {@template patch}
-/// A single patch which contains zero or more artifacts.
+/// An over the air update which is applied to a specific release.
+/// All patches have a patch number (auto-incrementing integer) and
+/// multiple patches can be published for a given app release version.
 /// {@endtemplate}
 @JsonSerializable()
 class Patch {
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/release.dart b/packages/shorebird_code_push_protocol/lib/src/models/release.dart
new file mode 100644
index 00000000..e8afc4ed
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/lib/src/models/release.dart
@@ -0,0 +1,37 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'release.g.dart';
+
+/// {@template release}
+/// A release build of an application that is distributed to devices.
+/// A release can have zero or more patches applied to it.
+/// {@endtemplate}
+@JsonSerializable()
+class Release {
+  /// {@macro release}
+  const Release({
+    required this.id,
+    required this.appId,
+    required this.version,
+    required this.displayName,
+  });
+
+  /// Converts a Map<String, dynamic> to a [Release]
+  factory Release.fromJson(Map<String, dynamic> json) =>
+      _$ReleaseFromJson(json);
+
+  /// Converts a [Release] to a Map<String, dynamic>
+  Map<String, dynamic> toJson() => _$ReleaseToJson(this);
+
+  /// The ID of the release;
+  final int id;
+
+  /// The ID of the app.
+  final String appId;
+
+  /// The version of the release.
+  final String version;
+
+  /// The display name for the release
+  final String? displayName;
+}
diff --git a/packages/shorebird_code_push_protocol/lib/src/models/release.g.dart b/packages/shorebird_code_push_protocol/lib/src/models/release.g.dart
new file mode 100644
index 00000000..418a0ad1
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/lib/src/models/release.g.dart
@@ -0,0 +1,31 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+// ignore_for_file: implicit_dynamic_parameter, require_trailing_commas, cast_nullable_to_non_nullable, lines_longer_than_80_chars
+
+part of 'release.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+Release _$ReleaseFromJson(Map<String, dynamic> json) => $checkedCreate(
+      'Release',
+      json,
+      ($checkedConvert) {
+        final val = Release(
+          id: $checkedConvert('id', (v) => v as int),
+          appId: $checkedConvert('app_id', (v) => v as String),
+          version: $checkedConvert('version', (v) => v as String),
+          displayName: $checkedConvert('display_name', (v) => v as String?),
+        );
+        return val;
+      },
+      fieldKeyMap: const {'appId': 'app_id', 'displayName': 'display_name'},
+    );
+
+Map<String, dynamic> _$ReleaseToJson(Release instance) => <String, dynamic>{
+      'id': instance.id,
+      'app_id': instance.appId,
+      'version': instance.version,
+      'display_name': instance.displayName,
+    };
diff --git a/packages/shorebird_code_push_protocol/test/src/models/artifact_test.dart b/packages/shorebird_code_push_protocol/test/src/models/artifact_test.dart
new file mode 100644
index 00000000..c3c9bcbb
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/test/src/models/artifact_test.dart
@@ -0,0 +1,21 @@
+import 'package:shorebird_code_push_protocol/shorebird_code_push_protocol.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Artifact', () {
+    test('can be (de)serialized', () {
+      const artifact = Artifact(
+        id: 1,
+        patchId: 1,
+        arch: 'aarch64',
+        platform: 'android',
+        url: 'https://example.com',
+        hash: 'sha256:1234567890',
+      );
+      expect(
+        Artifact.fromJson(artifact.toJson()).toJson(),
+        equals(artifact.toJson()),
+      );
+    });
+  });
+}
diff --git a/packages/shorebird_code_push_protocol/test/src/models/channel_test.dart b/packages/shorebird_code_push_protocol/test/src/models/channel_test.dart
new file mode 100644
index 00000000..b15d0561
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/test/src/models/channel_test.dart
@@ -0,0 +1,18 @@
+import 'package:shorebird_code_push_protocol/shorebird_code_push_protocol.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Channel', () {
+    test('can be (de)serialized', () {
+      const channel = Channel(
+        id: 1,
+        appId: 'app-id',
+        name: 'stable',
+      );
+      expect(
+        Channel.fromJson(channel.toJson()).toJson(),
+        equals(channel.toJson()),
+      );
+    });
+  });
+}
diff --git a/packages/shorebird_code_push_protocol/test/src/models/release_test.dart b/packages/shorebird_code_push_protocol/test/src/models/release_test.dart
new file mode 100644
index 00000000..3bcb6ce7
--- /dev/null
+++ b/packages/shorebird_code_push_protocol/test/src/models/release_test.dart
@@ -0,0 +1,19 @@
+import 'package:shorebird_code_push_protocol/shorebird_code_push_protocol.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Release', () {
+    test('can be (de)serialized', () {
+      const release = Release(
+        id: 1,
+        appId: 'app-id',
+        version: '1.0.0',
+        displayName: 'v1.0.0',
+      );
+      expect(
+        Release.fromJson(release.toJson()).toJson(),
+        equals(release.toJson()),
+      );
+    });
+  });
+}