diff --git a/lib/mastodon_api.dart b/lib/mastodon_api.dart
index 030316b..8ded9ff 100644
--- a/lib/mastodon_api.dart
+++ b/lib/mastodon_api.dart
@@ -23,6 +23,7 @@ export 'package:mastodon_api/src/service/entities/announcement_status.dart';
 export 'package:mastodon_api/src/service/entities/application.dart';
 export 'package:mastodon_api/src/service/entities/block_severity.dart';
 export 'package:mastodon_api/src/service/entities/blocked_domain.dart';
+export 'package:mastodon_api/src/service/entities/conversation.dart';
 export 'package:mastodon_api/src/service/entities/display_media_setting.dart';
 export 'package:mastodon_api/src/service/entities/emoji.dart';
 export 'package:mastodon_api/src/service/entities/emoji_reaction.dart';
diff --git a/lib/src/service/entities/conversation.dart b/lib/src/service/entities/conversation.dart
new file mode 100644
index 0000000..17bbcef
--- /dev/null
+++ b/lib/src/service/entities/conversation.dart
@@ -0,0 +1,35 @@
+// Copyright 2022 Kato Shinya. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided the conditions.
+
+// ignore_for_file: invalid_annotation_target
+
+// 📦 Package imports:
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+import 'account.dart';
+import 'status.dart';
+
+part 'conversation.freezed.dart';
+part 'conversation.g.dart';
+
+@freezed
+class Conversation with _$Conversation {
+  @JsonSerializable(includeIfNull: false)
+  const factory Conversation({
+    /// The ID of the conversation in the database.
+    required String id,
+
+    /// Is the conversation currently marked as unread?
+    @JsonKey(name: 'unread') required bool isUnread,
+
+    /// Participants in the conversation.
+    required List<Account> accounts,
+
+    /// The last status in the conversation.
+    Status? lastStatus,
+  }) = _Conversation;
+
+  factory Conversation.fromJson(Map<String, Object?> json) =>
+      _$ConversationFromJson(json);
+}
diff --git a/lib/src/service/entities/conversation.freezed.dart b/lib/src/service/entities/conversation.freezed.dart
new file mode 100644
index 0000000..efbc46b
--- /dev/null
+++ b/lib/src/service/entities/conversation.freezed.dart
@@ -0,0 +1,268 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'conversation.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+Conversation _$ConversationFromJson(Map<String, dynamic> json) {
+  return _Conversation.fromJson(json);
+}
+
+/// @nodoc
+mixin _$Conversation {
+  /// The ID of the conversation in the database.
+  String get id => throw _privateConstructorUsedError;
+
+  /// Is the conversation currently marked as unread?
+  @JsonKey(name: 'unread')
+  bool get isUnread => throw _privateConstructorUsedError;
+
+  /// Participants in the conversation.
+  List<Account> get accounts => throw _privateConstructorUsedError;
+
+  /// The last status in the conversation.
+  Status? get lastStatus => throw _privateConstructorUsedError;
+
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+  @JsonKey(ignore: true)
+  $ConversationCopyWith<Conversation> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ConversationCopyWith<$Res> {
+  factory $ConversationCopyWith(
+          Conversation value, $Res Function(Conversation) then) =
+      _$ConversationCopyWithImpl<$Res, Conversation>;
+  @useResult
+  $Res call(
+      {String id,
+      @JsonKey(name: 'unread') bool isUnread,
+      List<Account> accounts,
+      Status? lastStatus});
+
+  $StatusCopyWith<$Res>? get lastStatus;
+}
+
+/// @nodoc
+class _$ConversationCopyWithImpl<$Res, $Val extends Conversation>
+    implements $ConversationCopyWith<$Res> {
+  _$ConversationCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? isUnread = null,
+    Object? accounts = null,
+    Object? lastStatus = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      isUnread: null == isUnread
+          ? _value.isUnread
+          : isUnread // ignore: cast_nullable_to_non_nullable
+              as bool,
+      accounts: null == accounts
+          ? _value.accounts
+          : accounts // ignore: cast_nullable_to_non_nullable
+              as List<Account>,
+      lastStatus: freezed == lastStatus
+          ? _value.lastStatus
+          : lastStatus // ignore: cast_nullable_to_non_nullable
+              as Status?,
+    ) as $Val);
+  }
+
+  @override
+  @pragma('vm:prefer-inline')
+  $StatusCopyWith<$Res>? get lastStatus {
+    if (_value.lastStatus == null) {
+      return null;
+    }
+
+    return $StatusCopyWith<$Res>(_value.lastStatus!, (value) {
+      return _then(_value.copyWith(lastStatus: value) as $Val);
+    });
+  }
+}
+
+/// @nodoc
+abstract class _$$_ConversationCopyWith<$Res>
+    implements $ConversationCopyWith<$Res> {
+  factory _$$_ConversationCopyWith(
+          _$_Conversation value, $Res Function(_$_Conversation) then) =
+      __$$_ConversationCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      @JsonKey(name: 'unread') bool isUnread,
+      List<Account> accounts,
+      Status? lastStatus});
+
+  @override
+  $StatusCopyWith<$Res>? get lastStatus;
+}
+
+/// @nodoc
+class __$$_ConversationCopyWithImpl<$Res>
+    extends _$ConversationCopyWithImpl<$Res, _$_Conversation>
+    implements _$$_ConversationCopyWith<$Res> {
+  __$$_ConversationCopyWithImpl(
+      _$_Conversation _value, $Res Function(_$_Conversation) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? isUnread = null,
+    Object? accounts = null,
+    Object? lastStatus = freezed,
+  }) {
+    return _then(_$_Conversation(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      isUnread: null == isUnread
+          ? _value.isUnread
+          : isUnread // ignore: cast_nullable_to_non_nullable
+              as bool,
+      accounts: null == accounts
+          ? _value._accounts
+          : accounts // ignore: cast_nullable_to_non_nullable
+              as List<Account>,
+      lastStatus: freezed == lastStatus
+          ? _value.lastStatus
+          : lastStatus // ignore: cast_nullable_to_non_nullable
+              as Status?,
+    ));
+  }
+}
+
+/// @nodoc
+
+@JsonSerializable(includeIfNull: false)
+class _$_Conversation implements _Conversation {
+  const _$_Conversation(
+      {required this.id,
+      @JsonKey(name: 'unread') required this.isUnread,
+      required final List<Account> accounts,
+      this.lastStatus})
+      : _accounts = accounts;
+
+  factory _$_Conversation.fromJson(Map<String, dynamic> json) =>
+      _$$_ConversationFromJson(json);
+
+  /// The ID of the conversation in the database.
+  @override
+  final String id;
+
+  /// Is the conversation currently marked as unread?
+  @override
+  @JsonKey(name: 'unread')
+  final bool isUnread;
+
+  /// Participants in the conversation.
+  final List<Account> _accounts;
+
+  /// Participants in the conversation.
+  @override
+  List<Account> get accounts {
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(_accounts);
+  }
+
+  /// The last status in the conversation.
+  @override
+  final Status? lastStatus;
+
+  @override
+  String toString() {
+    return 'Conversation(id: $id, isUnread: $isUnread, accounts: $accounts, lastStatus: $lastStatus)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$_Conversation &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.isUnread, isUnread) ||
+                other.isUnread == isUnread) &&
+            const DeepCollectionEquality().equals(other._accounts, _accounts) &&
+            (identical(other.lastStatus, lastStatus) ||
+                other.lastStatus == lastStatus));
+  }
+
+  @JsonKey(ignore: true)
+  @override
+  int get hashCode => Object.hash(runtimeType, id, isUnread,
+      const DeepCollectionEquality().hash(_accounts), lastStatus);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$_ConversationCopyWith<_$_Conversation> get copyWith =>
+      __$$_ConversationCopyWithImpl<_$_Conversation>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$_ConversationToJson(
+      this,
+    );
+  }
+}
+
+abstract class _Conversation implements Conversation {
+  const factory _Conversation(
+      {required final String id,
+      @JsonKey(name: 'unread') required final bool isUnread,
+      required final List<Account> accounts,
+      final Status? lastStatus}) = _$_Conversation;
+
+  factory _Conversation.fromJson(Map<String, dynamic> json) =
+      _$_Conversation.fromJson;
+
+  @override
+
+  /// The ID of the conversation in the database.
+  String get id;
+  @override
+
+  /// Is the conversation currently marked as unread?
+  @JsonKey(name: 'unread')
+  bool get isUnread;
+  @override
+
+  /// Participants in the conversation.
+  List<Account> get accounts;
+  @override
+
+  /// The last status in the conversation.
+  Status? get lastStatus;
+  @override
+  @JsonKey(ignore: true)
+  _$$_ConversationCopyWith<_$_Conversation> get copyWith =>
+      throw _privateConstructorUsedError;
+}
diff --git a/lib/src/service/entities/conversation.g.dart b/lib/src/service/entities/conversation.g.dart
new file mode 100644
index 0000000..36954df
--- /dev/null
+++ b/lib/src/service/entities/conversation.g.dart
@@ -0,0 +1,50 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+// ignore_for_file: non_constant_identifier_names
+
+part of 'conversation.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$_Conversation _$$_ConversationFromJson(Map json) => $checkedCreate(
+      r'_$_Conversation',
+      json,
+      ($checkedConvert) {
+        final val = _$_Conversation(
+          id: $checkedConvert('id', (v) => v as String),
+          isUnread: $checkedConvert('unread', (v) => v as bool),
+          accounts: $checkedConvert(
+              'accounts',
+              (v) => (v as List<dynamic>)
+                  .map((e) =>
+                      Account.fromJson(Map<String, Object?>.from(e as Map)))
+                  .toList()),
+          lastStatus: $checkedConvert(
+              'last_status',
+              (v) => v == null
+                  ? null
+                  : Status.fromJson(Map<String, Object?>.from(v as Map))),
+        );
+        return val;
+      },
+      fieldKeyMap: const {'isUnread': 'unread', 'lastStatus': 'last_status'},
+    );
+
+Map<String, dynamic> _$$_ConversationToJson(_$_Conversation instance) {
+  final val = <String, dynamic>{
+    'id': instance.id,
+    'unread': instance.isUnread,
+    'accounts': instance.accounts.map((e) => e.toJson()).toList(),
+  };
+
+  void writeNotNull(String key, dynamic value) {
+    if (value != null) {
+      val[key] = value;
+    }
+  }
+
+  writeNotNull('last_status', instance.lastStatus?.toJson());
+  return val;
+}
diff --git a/lib/src/service/v1/timelines/timelines_v1_service.dart b/lib/src/service/v1/timelines/timelines_v1_service.dart
index ad60cb4..3608c66 100644
--- a/lib/src/service/v1/timelines/timelines_v1_service.dart
+++ b/lib/src/service/v1/timelines/timelines_v1_service.dart
@@ -6,6 +6,7 @@
 import '../../../core/client/client_context.dart';
 import '../../../core/client/user_context.dart';
 import '../../base_service.dart';
+import '../../entities/conversation.dart';
 import '../../entities/status.dart';
 import '../../response/mastodon_response.dart';
 
@@ -181,6 +182,82 @@ abstract class TimelinesV1Service {
     String? sinceStatusId,
     int? limit,
   });
+
+  /// View all conversations
+  ///
+  /// ## Parameters
+  ///
+  /// - [limit]: Maximum number of results to return. Defaults to 20
+  ///            conversations. Max 40 conversations.
+  ///
+  /// ## Endpoint Url
+  ///
+  /// - GET /api/v1/conversations HTTP/1.1
+  ///
+  /// ## Authentication Methods
+  ///
+  /// - OAuth 2.0
+  ///
+  /// ## Required Scopes
+  ///
+  /// - read:statuses
+  ///
+  /// ## Reference
+  ///
+  /// - https://docs.joinmastodon.org/methods/conversations/#get
+  Future<MastodonResponse<List<Conversation>>> lookupConversations({
+    int? limit,
+  });
+
+  /// Removes a conversation from your list of conversations.
+  ///
+  /// ## Parameters
+  ///
+  /// - [conversationId]: The ID of the Conversation in the database.
+  ///
+  /// ## Endpoint Url
+  ///
+  /// - DELETE /api/v1/conversations/:id HTTP/1.1
+  ///
+  /// ## Authentication Methods
+  ///
+  /// - OAuth 2.0
+  ///
+  /// ## Required Scopes
+  ///
+  /// - write:conversations
+  ///
+  /// ## Reference
+  ///
+  /// - https://docs.joinmastodon.org/methods/conversations/#delete
+  Future<MastodonResponse<bool>> destroyConversation({
+    required String conversationId,
+  });
+
+  /// Mark a conversation as read.
+  ///
+  /// ## Parameters
+  ///
+  /// - [conversationId]: The ID of the Conversation in the database.
+  ///
+  /// ## Endpoint Url
+  ///
+  /// - POST /api/v1/conversations/:id/read HTTP/1.1
+  ///
+  /// ## Authentication Methods
+  ///
+  /// - OAuth 2.0
+  ///
+  /// ## Required Scopes
+  ///
+  /// - write:conversations
+  ///
+  /// ## Reference
+  ///
+  /// - https://docs.joinmastodon.org/methods/conversations/#delete
+  Future<MastodonResponse<Conversation>> createMarkConversationAsRead({
+    required String conversationId,
+  });
 }
 
 class _TimelinesV1Service extends BaseService implements TimelinesV1Service {
@@ -287,4 +364,43 @@ class _TimelinesV1Service extends BaseService implements TimelinesV1Service {
         ),
         dataBuilder: Status.fromJson,
       );
+
+  @override
+  Future<MastodonResponse<List<Conversation>>> lookupConversations({
+    int? limit,
+  }) async =>
+      super.transformMultiDataResponse(
+        await super.get(
+          UserContext.oauth2Only,
+          '/api/v1/conversations',
+          queryParameters: {
+            'limit': limit,
+          },
+        ),
+        dataBuilder: Conversation.fromJson,
+      );
+
+  @override
+  Future<MastodonResponse<bool>> destroyConversation({
+    required String conversationId,
+  }) async =>
+      super.evaluateResponse(
+        await super.delete(
+          UserContext.oauth2Only,
+          '/api/v1/conversations/$conversationId',
+        ),
+      );
+
+  @override
+  Future<MastodonResponse<Conversation>> createMarkConversationAsRead({
+    required String conversationId,
+  }) async =>
+      super.transformSingleDataResponse(
+        await super.post(
+          UserContext.oauth2Only,
+          '/api/v1/conversations/$conversationId/read',
+          checkEntity: true,
+        ),
+        dataBuilder: Conversation.fromJson,
+      );
 }
diff --git a/test/src/service/v1/timelines/data/create_mark_conversation_as_read.json b/test/src/service/v1/timelines/data/create_mark_conversation_as_read.json
new file mode 100644
index 0000000..66c7251
--- /dev/null
+++ b/test/src/service/v1/timelines/data/create_mark_conversation_as_read.json
@@ -0,0 +1,144 @@
+{
+  "id": "418450",
+  "unread": true,
+  "accounts": [
+    {
+      "id": "1",
+      "username": "Gargron",
+      "acct": "Gargron",
+      "display_name": "Eugen",
+      "locked": false,
+      "bot": false,
+      "created_at": "2016-03-16T14:34:26.392Z",
+      "note": "<p>Developer of Mastodon and administrator of mastodon.social. I post service announcements, development updates, and personal stuff.</p>",
+      "url": "https://mastodon.social/@Gargron",
+      "avatar": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+      "avatar_static": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+      "header": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+      "header_static": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+      "followers_count": 318699,
+      "following_count": 453,
+      "statuses_count": 61013,
+      "last_status_at": "2019-11-30T20:02:08.277Z",
+      "emojis": [],
+      "fields": [
+        {
+          "name": "Patreon",
+          "value": "<a href=\"https://www.patreon.com/mastodon\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://www.</span><span class=\"\">patreon.com/mastodon</span><span class=\"invisible\"></span></a>",
+          "verified_at": null
+        },
+        {
+          "name": "Homepage",
+          "value": "<a href=\"https://zeonfederated.com\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://</span><span class=\"\">zeonfederated.com</span><span class=\"invisible\"></span></a>",
+          "verified_at": "2019-07-15T18:29:57.191+00:00"
+        }
+      ]
+    },
+    {
+      "id": "1",
+      "username": "Gargron",
+      "acct": "Gargron",
+      "display_name": "Eugen",
+      "locked": false,
+      "bot": false,
+      "created_at": "2016-03-16T14:34:26.392Z",
+      "note": "<p>Developer of Mastodon and administrator of mastodon.social. I post service announcements, development updates, and personal stuff.</p>",
+      "url": "https://mastodon.social/@Gargron",
+      "avatar": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+      "avatar_static": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+      "header": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+      "header_static": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+      "followers_count": 318699,
+      "following_count": 453,
+      "statuses_count": 61013,
+      "last_status_at": "2019-11-30T20:02:08.277Z",
+      "emojis": [],
+      "fields": [
+        {
+          "name": "Patreon",
+          "value": "<a href=\"https://www.patreon.com/mastodon\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://www.</span><span class=\"\">patreon.com/mastodon</span><span class=\"invisible\"></span></a>",
+          "verified_at": null
+        },
+        {
+          "name": "Homepage",
+          "value": "<a href=\"https://zeonfederated.com\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://</span><span class=\"\">zeonfederated.com</span><span class=\"invisible\"></span></a>",
+          "verified_at": "2019-07-15T18:29:57.191+00:00"
+        }
+      ]
+    }
+  ],
+  "last_status": {
+    "id": "109384580642337706",
+    "created_at": "2022-11-22T00:17:22.709Z",
+    "in_reply_to_id": null,
+    "in_reply_to_account_id": null,
+    "sensitive": false,
+    "spoiler_text": "",
+    "visibility": "public",
+    "language": "ja",
+    "uri": "https://fedibird.com/users/kato_shinya/statuses/109384580642337706",
+    "url": "https://fedibird.com/@kato_shinya/109384580642337706",
+    "replies_count": 0,
+    "reblogs_count": 0,
+    "favourites_count": 0,
+    "emoji_reactions_count": 0,
+    "emoji_reactions": [],
+    "status_reference_ids": [],
+    "status_references_count": 0,
+    "status_referred_by_count": 0,
+    "searchability": "direct",
+    "favourited": false,
+    "reblogged": false,
+    "muted": false,
+    "bookmarked": false,
+    "emoji_reactioned": false,
+    "pinned": false,
+    "content": "\u003cp\u003eToot!\u003c/p\u003e",
+    "account": {
+      "id": "109357329889773922",
+      "username": "kato_shinya",
+      "acct": "kato_shinya",
+      "display_name": "",
+      "locked": false,
+      "bot": false,
+      "cat": false,
+      "discoverable": null,
+      "group": false,
+      "created_at": "2022-11-17T00:00:00.000Z",
+      "note": "\u003cp\u003e\u003c/p\u003e",
+      "url": "https://fedibird.com/@kato_shinya",
+      "avatar": "https://fedibird.com/avatars/original/missing.png",
+      "avatar_static": "https://fedibird.com/avatars/original/missing.png",
+      "header": "https://fedibird.com/headers/original/missing.png",
+      "header_static": "https://fedibird.com/headers/original/missing.png",
+      "searchability": "direct",
+      "followers_count": 0,
+      "following_count": 1,
+      "subscribing_count": 0,
+      "statuses_count": 4,
+      "last_status_at": "2022-11-22",
+      "emojis": [],
+      "fields": [],
+      "other_settings": {
+        "noindex": false,
+        "hide_network": false,
+        "hide_statuses_count": false,
+        "hide_following_count": false,
+        "hide_followers_count": false,
+        "enable_reaction": true
+      }
+    },
+    "reblog": null,
+    "quote": null,
+    "application": {
+      "name": "トゥース！",
+      "website": "https://github.com/myConsciousness"
+    },
+    "media_attachments": [],
+    "mentions": [],
+    "tags": [],
+    "emojis": [],
+    "card": null,
+    "poll": null
+  }
+}
diff --git a/test/src/service/v1/timelines/data/destroy_conversation.json b/test/src/service/v1/timelines/data/destroy_conversation.json
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/test/src/service/v1/timelines/data/destroy_conversation.json
@@ -0,0 +1 @@
+{}
diff --git a/test/src/service/v1/timelines/data/lookup_conversations.json b/test/src/service/v1/timelines/data/lookup_conversations.json
new file mode 100644
index 0000000..5b6ca8a
--- /dev/null
+++ b/test/src/service/v1/timelines/data/lookup_conversations.json
@@ -0,0 +1,146 @@
+[
+  {
+    "id": "418450",
+    "unread": false,
+    "accounts": [
+      {
+        "id": "1",
+        "username": "Gargron",
+        "acct": "Gargron",
+        "display_name": "Eugen",
+        "locked": false,
+        "bot": false,
+        "created_at": "2016-03-16T14:34:26.392Z",
+        "note": "<p>Developer of Mastodon and administrator of mastodon.social. I post service announcements, development updates, and personal stuff.</p>",
+        "url": "https://mastodon.social/@Gargron",
+        "avatar": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+        "avatar_static": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+        "header": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+        "header_static": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+        "followers_count": 318699,
+        "following_count": 453,
+        "statuses_count": 61013,
+        "last_status_at": "2019-11-30T20:02:08.277Z",
+        "emojis": [],
+        "fields": [
+          {
+            "name": "Patreon",
+            "value": "<a href=\"https://www.patreon.com/mastodon\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://www.</span><span class=\"\">patreon.com/mastodon</span><span class=\"invisible\"></span></a>",
+            "verified_at": null
+          },
+          {
+            "name": "Homepage",
+            "value": "<a href=\"https://zeonfederated.com\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://</span><span class=\"\">zeonfederated.com</span><span class=\"invisible\"></span></a>",
+            "verified_at": "2019-07-15T18:29:57.191+00:00"
+          }
+        ]
+      },
+      {
+        "id": "1",
+        "username": "Gargron",
+        "acct": "Gargron",
+        "display_name": "Eugen",
+        "locked": false,
+        "bot": false,
+        "created_at": "2016-03-16T14:34:26.392Z",
+        "note": "<p>Developer of Mastodon and administrator of mastodon.social. I post service announcements, development updates, and personal stuff.</p>",
+        "url": "https://mastodon.social/@Gargron",
+        "avatar": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+        "avatar_static": "https://files.mastodon.social/accounts/avatars/000/000/001/original/d96d39a0abb45b92.jpg",
+        "header": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+        "header_static": "https://files.mastodon.social/accounts/headers/000/000/001/original/c91b871f294ea63e.png",
+        "followers_count": 318699,
+        "following_count": 453,
+        "statuses_count": 61013,
+        "last_status_at": "2019-11-30T20:02:08.277Z",
+        "emojis": [],
+        "fields": [
+          {
+            "name": "Patreon",
+            "value": "<a href=\"https://www.patreon.com/mastodon\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://www.</span><span class=\"\">patreon.com/mastodon</span><span class=\"invisible\"></span></a>",
+            "verified_at": null
+          },
+          {
+            "name": "Homepage",
+            "value": "<a href=\"https://zeonfederated.com\" rel=\"me nofollow noopener noreferrer\" target=\"_blank\"><span class=\"invisible\">https://</span><span class=\"\">zeonfederated.com</span><span class=\"invisible\"></span></a>",
+            "verified_at": "2019-07-15T18:29:57.191+00:00"
+          }
+        ]
+      }
+    ],
+    "last_status": {
+      "id": "109384580642337706",
+      "created_at": "2022-11-22T00:17:22.709Z",
+      "in_reply_to_id": null,
+      "in_reply_to_account_id": null,
+      "sensitive": false,
+      "spoiler_text": "",
+      "visibility": "public",
+      "language": "ja",
+      "uri": "https://fedibird.com/users/kato_shinya/statuses/109384580642337706",
+      "url": "https://fedibird.com/@kato_shinya/109384580642337706",
+      "replies_count": 0,
+      "reblogs_count": 0,
+      "favourites_count": 0,
+      "emoji_reactions_count": 0,
+      "emoji_reactions": [],
+      "status_reference_ids": [],
+      "status_references_count": 0,
+      "status_referred_by_count": 0,
+      "searchability": "direct",
+      "favourited": false,
+      "reblogged": false,
+      "muted": false,
+      "bookmarked": false,
+      "emoji_reactioned": false,
+      "pinned": false,
+      "content": "\u003cp\u003eToot!\u003c/p\u003e",
+      "account": {
+        "id": "109357329889773922",
+        "username": "kato_shinya",
+        "acct": "kato_shinya",
+        "display_name": "",
+        "locked": false,
+        "bot": false,
+        "cat": false,
+        "discoverable": null,
+        "group": false,
+        "created_at": "2022-11-17T00:00:00.000Z",
+        "note": "\u003cp\u003e\u003c/p\u003e",
+        "url": "https://fedibird.com/@kato_shinya",
+        "avatar": "https://fedibird.com/avatars/original/missing.png",
+        "avatar_static": "https://fedibird.com/avatars/original/missing.png",
+        "header": "https://fedibird.com/headers/original/missing.png",
+        "header_static": "https://fedibird.com/headers/original/missing.png",
+        "searchability": "direct",
+        "followers_count": 0,
+        "following_count": 1,
+        "subscribing_count": 0,
+        "statuses_count": 4,
+        "last_status_at": "2022-11-22",
+        "emojis": [],
+        "fields": [],
+        "other_settings": {
+          "noindex": false,
+          "hide_network": false,
+          "hide_statuses_count": false,
+          "hide_following_count": false,
+          "hide_followers_count": false,
+          "enable_reaction": true
+        }
+      },
+      "reblog": null,
+      "quote": null,
+      "application": {
+        "name": "トゥース！",
+        "website": "https://github.com/myConsciousness"
+      },
+      "media_attachments": [],
+      "mentions": [],
+      "tags": [],
+      "emojis": [],
+      "card": null,
+      "poll": null
+    }
+  }
+]
diff --git a/test/src/service/v1/timelines/timelines_v1_service_test.dart b/test/src/service/v1/timelines/timelines_v1_service_test.dart
index b3d9734..26ee5ee 100644
--- a/test/src/service/v1/timelines/timelines_v1_service_test.dart
+++ b/test/src/service/v1/timelines/timelines_v1_service_test.dart
@@ -4,6 +4,7 @@
 
 // 🌎 Project imports:
 import 'package:mastodon_api/src/core/client/user_context.dart';
+import 'package:mastodon_api/src/service/entities/conversation.dart';
 import 'package:mastodon_api/src/service/entities/rate_limit.dart';
 import 'package:mastodon_api/src/service/entities/status.dart';
 import 'package:mastodon_api/src/service/response/mastodon_response.dart';
@@ -505,4 +506,184 @@ void main() {
       expect(response.data, []);
     });
   });
+
+  group('.lookupConversations', () {
+    test('normal case', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildGetStub(
+          'test',
+          UserContext.oauth2Only,
+          '/api/v1/conversations',
+          'test/src/service/v1/timelines/data/lookup_conversations.json',
+          {
+            'limit': '10',
+          },
+        ),
+      );
+
+      final response = await timelinesService.lookupConversations(limit: 10);
+
+      expect(response, isA<MastodonResponse>());
+      expect(response.rateLimit, isA<RateLimit>());
+      expect(response.data, isA<List<Conversation>>());
+    });
+
+    test('when unauthorized', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildGetStub(
+          'test',
+          UserContext.oauth2Only,
+          '/api/v1/conversations',
+          'test/src/service/v1/timelines/data/lookup_conversations.json',
+          {
+            'limit': '10',
+          },
+          statusCode: 401,
+        ),
+      );
+
+      expectUnauthorizedException(
+        () async => await timelinesService.lookupConversations(limit: 10),
+      );
+    });
+
+    test('when rate limit exceeded', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildGetStub(
+          'test',
+          UserContext.oauth2Only,
+          '/api/v1/conversations',
+          'test/src/service/v1/timelines/data/lookup_conversations.json',
+          {
+            'limit': '10',
+          },
+          statusCode: 429,
+        ),
+      );
+
+      expectRateLimitExceededException(
+        () async => await timelinesService.lookupConversations(limit: 10),
+      );
+    });
+  });
+
+  group('.destroyConversation', () {
+    test('normal case', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildDeleteStub(
+          'test',
+          '/api/v1/conversations/1234',
+          'test/src/service/v1/timelines/data/destroy_conversation.json',
+        ),
+      );
+
+      final response = await timelinesService.destroyConversation(
+        conversationId: '1234',
+      );
+
+      expect(response, isA<MastodonResponse>());
+      expect(response.rateLimit, isA<RateLimit>());
+      expect(response.data, isTrue);
+    });
+
+    test('when unauthorized', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildDeleteStub(
+          'test',
+          '/api/v1/conversations/1234',
+          'test/src/service/v1/timelines/data/destroy_conversation.json',
+          statusCode: 401,
+        ),
+      );
+
+      expectUnauthorizedException(
+        () async => await timelinesService.destroyConversation(
+          conversationId: '1234',
+        ),
+      );
+    });
+
+    test('when rate limit exceeded', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildDeleteStub(
+          'test',
+          '/api/v1/conversations/1234',
+          'test/src/service/v1/timelines/data/destroy_conversation.json',
+          statusCode: 429,
+        ),
+      );
+
+      expectRateLimitExceededException(
+        () async => await timelinesService.destroyConversation(
+          conversationId: '1234',
+        ),
+      );
+    });
+  });
+
+  group('.createMarkConversationAsRead', () {
+    test('normal case', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildPostStub(
+          'test',
+          UserContext.oauth2Only,
+          '/api/v1/conversations/1234/read',
+          'test/src/service/v1/timelines/data/create_mark_conversation_as_read.json',
+        ),
+      );
+
+      final response = await timelinesService.createMarkConversationAsRead(
+        conversationId: '1234',
+      );
+
+      expect(response, isA<MastodonResponse>());
+      expect(response.rateLimit, isA<RateLimit>());
+      expect(response.data, isA<Conversation>());
+    });
+
+    test('when unauthorized', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildPostStub(
+          'test',
+          UserContext.oauth2Only,
+          '/api/v1/conversations/1234/read',
+          'test/src/service/v1/timelines/data/create_mark_conversation_as_read.json',
+          statusCode: 401,
+        ),
+      );
+
+      expectUnauthorizedException(
+        () async => await timelinesService.createMarkConversationAsRead(
+          conversationId: '1234',
+        ),
+      );
+    });
+
+    test('when rate limit exceeded', () async {
+      final timelinesService = TimelinesV1Service(
+        instance: 'test',
+        context: context.buildPostStub(
+          'test',
+          UserContext.oauth2Only,
+          '/api/v1/conversations/1234/read',
+          'test/src/service/v1/timelines/data/create_mark_conversation_as_read.json',
+          statusCode: 429,
+        ),
+      );
+
+      expectRateLimitExceededException(
+        () async => await timelinesService.createMarkConversationAsRead(
+          conversationId: '1234',
+        ),
+      );
+    });
+  });
 }