diff --git a/src/server/api/stream/channel.ts b/src/server/api/stream/channel.ts
index 75914964cb..bdbe4605cf 100644
--- a/src/server/api/stream/channel.ts
+++ b/src/server/api/stream/channel.ts
@@ -9,6 +9,7 @@ export default abstract class Channel {
 	public id: string;
 	public abstract readonly chName: string;
 	public static readonly shouldShare: boolean;
+	public static readonly requireCredential: boolean;
 
 	protected get user() {
 		return this.connection.user;
diff --git a/src/server/api/stream/channels/ap-log.ts b/src/server/api/stream/channels/ap-log.ts
index dfa1cc702d..867fd3670b 100644
--- a/src/server/api/stream/channels/ap-log.ts
+++ b/src/server/api/stream/channels/ap-log.ts
@@ -4,6 +4,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'apLog';
 	public static shouldShare = true;
+	public static requireCredential = false;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/drive.ts b/src/server/api/stream/channels/drive.ts
index 7425a620ff..391c4b5c32 100644
--- a/src/server/api/stream/channels/drive.ts
+++ b/src/server/api/stream/channels/drive.ts
@@ -4,6 +4,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'drive';
 	public static shouldShare = true;
+	public static requireCredential = true;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/games/reversi-game.ts b/src/server/api/stream/channels/games/reversi-game.ts
index 5dc9ca0608..f287ad0107 100644
--- a/src/server/api/stream/channels/games/reversi-game.ts
+++ b/src/server/api/stream/channels/games/reversi-game.ts
@@ -10,6 +10,7 @@ import Channel from '../../channel';
 export default class extends Channel {
 	public readonly chName = 'gamesReversiGame';
 	public static shouldShare = false;
+	public static requireCredential = false;
 
 	private gameId: mongo.ObjectID;
 
diff --git a/src/server/api/stream/channels/games/reversi.ts b/src/server/api/stream/channels/games/reversi.ts
index 51cb264d98..b40709617b 100644
--- a/src/server/api/stream/channels/games/reversi.ts
+++ b/src/server/api/stream/channels/games/reversi.ts
@@ -7,6 +7,7 @@ import Channel from '../../channel';
 export default class extends Channel {
 	public readonly chName = 'gamesReversi';
 	public static shouldShare = true;
+	public static requireCredential = true;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/global-timeline.ts b/src/server/api/stream/channels/global-timeline.ts
index e39ea269a6..c5499801ed 100644
--- a/src/server/api/stream/channels/global-timeline.ts
+++ b/src/server/api/stream/channels/global-timeline.ts
@@ -7,6 +7,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'globalTimeline';
 	public static shouldShare = true;
+	public static requireCredential = false;
 
 	private mutedUserIds: string[] = [];
 
diff --git a/src/server/api/stream/channels/hashtag.ts b/src/server/api/stream/channels/hashtag.ts
index 1f99aa3539..052240c18c 100644
--- a/src/server/api/stream/channels/hashtag.ts
+++ b/src/server/api/stream/channels/hashtag.ts
@@ -7,6 +7,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'hashtag';
 	public static shouldShare = false;
+	public static requireCredential = false;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/home-timeline.ts b/src/server/api/stream/channels/home-timeline.ts
index 3fa887f1e5..d3477d846a 100644
--- a/src/server/api/stream/channels/home-timeline.ts
+++ b/src/server/api/stream/channels/home-timeline.ts
@@ -7,6 +7,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'homeTimeline';
 	public static shouldShare = true;
+	public static requireCredential = true;
 
 	private mutedUserIds: string[] = [];
 
diff --git a/src/server/api/stream/channels/hybrid-timeline.ts b/src/server/api/stream/channels/hybrid-timeline.ts
index d72545e4c8..15a516b0c0 100644
--- a/src/server/api/stream/channels/hybrid-timeline.ts
+++ b/src/server/api/stream/channels/hybrid-timeline.ts
@@ -7,6 +7,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'hybridTimeline';
 	public static shouldShare = true;
+	public static requireCredential = true;
 
 	private mutedUserIds: string[] = [];
 
diff --git a/src/server/api/stream/channels/local-timeline.ts b/src/server/api/stream/channels/local-timeline.ts
index 0ba0b1b195..a26f71af8e 100644
--- a/src/server/api/stream/channels/local-timeline.ts
+++ b/src/server/api/stream/channels/local-timeline.ts
@@ -7,6 +7,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'localTimeline';
 	public static shouldShare = true;
+	public static requireCredential = false;
 
 	private mutedUserIds: string[] = [];
 
diff --git a/src/server/api/stream/channels/main.ts b/src/server/api/stream/channels/main.ts
index 7d5462c092..5b0705f1d3 100644
--- a/src/server/api/stream/channels/main.ts
+++ b/src/server/api/stream/channels/main.ts
@@ -5,6 +5,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'main';
 	public static shouldShare = true;
+	public static requireCredential = true;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/messaging-index.ts b/src/server/api/stream/channels/messaging-index.ts
index 0211d702cf..148ff7f935 100644
--- a/src/server/api/stream/channels/messaging-index.ts
+++ b/src/server/api/stream/channels/messaging-index.ts
@@ -4,6 +4,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'messagingIndex';
 	public static shouldShare = true;
+	public static requireCredential = true;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/messaging.ts b/src/server/api/stream/channels/messaging.ts
index ab04a332cf..0d81b4e45c 100644
--- a/src/server/api/stream/channels/messaging.ts
+++ b/src/server/api/stream/channels/messaging.ts
@@ -5,6 +5,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'messaging';
 	public static shouldShare = false;
+	public static requireCredential = true;
 
 	private otherpartyId: string;
 
diff --git a/src/server/api/stream/channels/notes-stats.ts b/src/server/api/stream/channels/notes-stats.ts
index 2282f8bc70..0c6b84d6cf 100644
--- a/src/server/api/stream/channels/notes-stats.ts
+++ b/src/server/api/stream/channels/notes-stats.ts
@@ -7,6 +7,7 @@ const ev = new Xev();
 export default class extends Channel {
 	public readonly chName = 'notesStats';
 	public static shouldShare = true;
+	public static requireCredential = false;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/server-stats.ts b/src/server/api/stream/channels/server-stats.ts
index 912dcf5305..d245a7f70c 100644
--- a/src/server/api/stream/channels/server-stats.ts
+++ b/src/server/api/stream/channels/server-stats.ts
@@ -7,6 +7,7 @@ const ev = new Xev();
 export default class extends Channel {
 	public readonly chName = 'serverStats';
 	public static shouldShare = true;
+	public static requireCredential = false;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/channels/user-list.ts b/src/server/api/stream/channels/user-list.ts
index b526a5f986..dbdd8afb0a 100644
--- a/src/server/api/stream/channels/user-list.ts
+++ b/src/server/api/stream/channels/user-list.ts
@@ -4,6 +4,7 @@ import Channel from '../channel';
 export default class extends Channel {
 	public readonly chName = 'userList';
 	public static shouldShare = false;
+	public static requireCredential = false;
 
 	@autobind
 	public async init(params: any) {
diff --git a/src/server/api/stream/index.ts b/src/server/api/stream/index.ts
index 96a4c7add6..58dbacd688 100644
--- a/src/server/api/stream/index.ts
+++ b/src/server/api/stream/index.ts
@@ -173,6 +173,10 @@ export default class Connection {
 	 */
 	@autobind
 	public connectChannel(id: string, params: any, channel: string, pong = false) {
+		if ((channels as any)[channel].requireCredential && this.user == null) {
+			return;
+		}
+
 		// 共有可能チャンネルに接続しようとしていて、かつそのチャンネルに既に接続していたら無意味なので無視
 		if ((channels as any)[channel].shouldShare && this.channels.some(c => c.chName === channel)) {
 			return;