diff --git a/locales/fr-FR.yml b/locales/fr-FR.yml
index 080026afc..6fa81d865 100644
--- a/locales/fr-FR.yml
+++ b/locales/fr-FR.yml
@@ -192,7 +192,7 @@ newPassword: "Nouveau mot de passe"
 newPasswordRetype: "Nouveau mot de passe (répéter)"
 attachFile: "Joindre un fichier"
 more: "Plus !"
-featured: "Surlignage"
+featured: "Tendances"
 usernameOrUserId: "Nom d'utilisateur ou ID utilisateur"
 noSuchUser: "Utilisateur non trouvé"
 lookup: "Recherche"
@@ -214,7 +214,7 @@ explore: "Découvrir"
 games: "Jeux de Misskey"
 messageRead: "Lus"
 noMoreHistory: "Plus d'histoire passée"
-startMessaging: "Commencer à écrire un discutez"
+startMessaging: "Commencer à discuter"
 nUsersRead: "{n} personnes ont lu"
 agreeTo: "D'accord {0}"
 tos: "Conditions d'utilisation"
@@ -524,7 +524,7 @@ _tutorial:
   step7_3: "Alors, profitez de Misskey 🚀"
 _2fa:
   alreadyRegistered: "Cette étape à déjà été complétée"
-  registerDevice: "S’inscrire l'appareil"
+  registerDevice: "Ajouter un appareil"
   registerKey: "S’inscrire la clé"
   step1: "Tout d'abord, installez une application d'authentification, telle que {a} ou {b}, sur votre appareil."
   step2: "Ensuite, scannez le code QR affiché avec l'application."
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 40772f9b1..a77991ccc 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -468,6 +468,10 @@ unableToProcess: "操作を完了できません"
 recentUsed: "最近使用"
 install: "インストール"
 uninstall: "アンインストール"
+installedApps: "インストールされたアプリ"
+nothing: "ありません"
+installedDate: "インストール日時"
+lastUsedDate: "最終使用日時"
 
 _theme:
   explore: "テーマを探す"
@@ -568,7 +572,11 @@ _permissions:
 
 _auth:
   shareAccess: "「{name}」がアカウントにアクセスすることを許可しますか？"
+  shareAccessAsk: "アカウントへのアクセスを許可しますか？"
   permissionAsk: "このアプリは次の権限を要求しています"
+  pleaseGoBack: "アプリケーションに戻ってやっていってください"
+  callback: "アプリケーションに戻っています"
+  denied: "アクセスを拒否しました"
 
 _antennaSources:
   all: "全てのノート"
diff --git a/migration/1585361548360-miauth.ts b/migration/1585361548360-miauth.ts
new file mode 100644
index 000000000..22d6c207f
--- /dev/null
+++ b/migration/1585361548360-miauth.ts
@@ -0,0 +1,36 @@
+import {MigrationInterface, QueryRunner} from "typeorm";
+
+export class miauth1585361548360 implements MigrationInterface {
+    name = 'miauth1585361548360'
+
+    public async up(queryRunner: QueryRunner): Promise<any> {
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "lastUsedAt" TIMESTAMP WITH TIME ZONE DEFAULT null`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "session" character varying(128) DEFAULT null`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "name" character varying(128) DEFAULT null`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "description" character varying(512) DEFAULT null`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "iconUrl" character varying(512) DEFAULT null`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "permission" character varying(64) array NOT NULL DEFAULT '{}'::varchar[]`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD "fetched" boolean NOT NULL DEFAULT false`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP CONSTRAINT "FK_a3ff16c90cc87a82a0b5959e560"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ALTER COLUMN "appId" DROP NOT NULL`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ALTER COLUMN "appId" SET DEFAULT null`, undefined);
+        await queryRunner.query(`CREATE INDEX "IDX_bf3a053c07d9fb5d87317c56ee" ON "access_token" ("session") `, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD CONSTRAINT "FK_a3ff16c90cc87a82a0b5959e560" FOREIGN KEY ("appId") REFERENCES "app"("id") ON DELETE CASCADE ON UPDATE NO ACTION`, undefined);
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<any> {
+        await queryRunner.query(`ALTER TABLE "access_token" DROP CONSTRAINT "FK_a3ff16c90cc87a82a0b5959e560"`, undefined);
+        await queryRunner.query(`DROP INDEX "IDX_bf3a053c07d9fb5d87317c56ee"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ALTER COLUMN "appId" DROP DEFAULT`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ALTER COLUMN "appId" SET NOT NULL`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" ADD CONSTRAINT "FK_a3ff16c90cc87a82a0b5959e560" FOREIGN KEY ("appId") REFERENCES "app"("id") ON DELETE CASCADE ON UPDATE NO ACTION`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "fetched"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "permission"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "iconUrl"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "description"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "name"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "session"`, undefined);
+        await queryRunner.query(`ALTER TABLE "access_token" DROP COLUMN "lastUsedAt"`, undefined);
+    }
+
+}
diff --git a/migration/1585385921215-custom-notification.ts b/migration/1585385921215-custom-notification.ts
new file mode 100644
index 000000000..24c29d53e
--- /dev/null
+++ b/migration/1585385921215-custom-notification.ts
@@ -0,0 +1,48 @@
+import {MigrationInterface, QueryRunner} from "typeorm";
+
+export class customNotification1585385921215 implements MigrationInterface {
+    name = 'customNotification1585385921215'
+
+    public async up(queryRunner: QueryRunner): Promise<any> {
+        await queryRunner.query(`ALTER TABLE "notification" ADD "customBody" character varying(2048)`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ADD "customHeader" character varying(256)`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ADD "customIcon" character varying(1024)`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ADD "appAccessTokenId" character varying(32)`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" DROP CONSTRAINT "FK_3b4e96eec8d36a8bbb9d02aa710"`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ALTER COLUMN "notifierId" DROP NOT NULL`, undefined);
+        await queryRunner.query(`COMMENT ON COLUMN "notification"."notifierId" IS 'The ID of sender user of the Notification.'`, undefined);
+        await queryRunner.query(`ALTER TYPE "public"."notification_type_enum" RENAME TO "notification_type_enum_old"`, undefined);
+        await queryRunner.query(`CREATE TYPE "notification_type_enum" AS ENUM('follow', 'mention', 'reply', 'renote', 'quote', 'reaction', 'pollVote', 'receiveFollowRequest', 'followRequestAccepted', 'groupInvited', 'app')`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ALTER COLUMN "type" TYPE "notification_type_enum" USING "type"::"text"::"notification_type_enum"`, undefined);
+        await queryRunner.query(`DROP TYPE "notification_type_enum_old"`, undefined);
+        await queryRunner.query(`COMMENT ON COLUMN "notification"."type" IS 'The type of the Notification.'`, undefined);
+        await queryRunner.query(`CREATE INDEX "IDX_3b4e96eec8d36a8bbb9d02aa71" ON "notification" ("notifierId") `, undefined);
+        await queryRunner.query(`CREATE INDEX "IDX_33f33cc8ef29d805a97ff4628b" ON "notification" ("type") `, undefined);
+        await queryRunner.query(`CREATE INDEX "IDX_080ab397c379af09b9d2169e5b" ON "notification" ("isRead") `, undefined);
+        await queryRunner.query(`CREATE INDEX "IDX_e22bf6bda77b6adc1fd9e75c8c" ON "notification" ("appAccessTokenId") `, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ADD CONSTRAINT "FK_3b4e96eec8d36a8bbb9d02aa710" FOREIGN KEY ("notifierId") REFERENCES "user"("id") ON DELETE CASCADE ON UPDATE NO ACTION`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ADD CONSTRAINT "FK_e22bf6bda77b6adc1fd9e75c8c9" FOREIGN KEY ("appAccessTokenId") REFERENCES "access_token"("id") ON DELETE CASCADE ON UPDATE NO ACTION`, undefined);
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<any> {
+        await queryRunner.query(`ALTER TABLE "notification" DROP CONSTRAINT "FK_e22bf6bda77b6adc1fd9e75c8c9"`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" DROP CONSTRAINT "FK_3b4e96eec8d36a8bbb9d02aa710"`, undefined);
+        await queryRunner.query(`DROP INDEX "IDX_e22bf6bda77b6adc1fd9e75c8c"`, undefined);
+        await queryRunner.query(`DROP INDEX "IDX_080ab397c379af09b9d2169e5b"`, undefined);
+        await queryRunner.query(`DROP INDEX "IDX_33f33cc8ef29d805a97ff4628b"`, undefined);
+        await queryRunner.query(`DROP INDEX "IDX_3b4e96eec8d36a8bbb9d02aa71"`, undefined);
+        await queryRunner.query(`COMMENT ON COLUMN "notification"."type" IS ''`, undefined);
+        await queryRunner.query(`CREATE TYPE "notification_type_enum_old" AS ENUM('follow', 'mention', 'reply', 'renote', 'quote', 'reaction', 'pollVote', 'receiveFollowRequest', 'followRequestAccepted', 'groupInvited')`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ALTER COLUMN "type" TYPE "notification_type_enum_old" USING "type"::"text"::"notification_type_enum_old"`, undefined);
+        await queryRunner.query(`DROP TYPE "notification_type_enum"`, undefined);
+        await queryRunner.query(`ALTER TYPE "notification_type_enum_old" RENAME TO  "notification_type_enum"`, undefined);
+        await queryRunner.query(`COMMENT ON COLUMN "notification"."notifierId" IS ''`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ALTER COLUMN "notifierId" SET NOT NULL`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" ADD CONSTRAINT "FK_3b4e96eec8d36a8bbb9d02aa710" FOREIGN KEY ("notifierId") REFERENCES "user"("id") ON DELETE CASCADE ON UPDATE NO ACTION`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" DROP COLUMN "appAccessTokenId"`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" DROP COLUMN "customIcon"`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" DROP COLUMN "customHeader"`, undefined);
+        await queryRunner.query(`ALTER TABLE "notification" DROP COLUMN "customBody"`, undefined);
+    }
+
+}
diff --git a/package.json b/package.json
index fb61e000f..857881c24 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "misskey",
 	"author": "syuilo <syuilotan@yahoo.co.jp>",
-	"version": "12.26.0",
+	"version": "12.27.0",
 	"codename": "indigo",
 	"repository": {
 		"type": "git",
@@ -169,6 +169,7 @@
 		"lolex": "5.1.2",
 		"lookup-dns-cache": "2.1.0",
 		"markdown-it": "10.0.0",
+		"markdown-it-anchor": "5.2.5",
 		"mocha": "7.0.1",
 		"moji": "0.5.1",
 		"ms": "2.1.2",
diff --git a/src/client/components/notes.vue b/src/client/components/notes.vue
index 65dda1757..0cf4dee2d 100644
--- a/src/client/components/notes.vue
+++ b/src/client/components/notes.vue
@@ -1,6 +1,6 @@
 <template>
 <div class="mk-notes" v-size="[{ max: 500 }]">
-	<div class="empty" v-if="empty">
+	<div class="_fullinfo" v-if="empty">
 		<img src="https://xn--931a.moe/assets/info.jpg" class="_ghost"/>
 		<div>{{ $t('noNotes') }}</div>
 	</div>
@@ -90,18 +90,6 @@ export default Vue.extend({
 
 <style lang="scss" scoped>
 .mk-notes {
-	> .empty {
-		padding: 32px;
-		text-align: center;
-
-		> img {
-			vertical-align: bottom;
-			height: 128px;
-			margin-bottom: 16px;
-			border-radius: 16px;
-		}
-	}
-
 	> .notes {
 		> ::v-deep *:not(:last-child) {
 			margin-bottom: var(--marginFull);
diff --git a/src/client/components/notification.vue b/src/client/components/notification.vue
index d768c0b07..f415887e7 100644
--- a/src/client/components/notification.vue
+++ b/src/client/components/notification.vue
@@ -1,22 +1,24 @@
 <template>
 <div class="mk-notification" :class="notification.type" v-size="[{ max: 500 }, { max: 600 }]">
 	<div class="head">
-		<mk-avatar class="avatar" :user="notification.user"/>
-		<div class="icon" :class="notification.type">
+		<mk-avatar v-if="notification.user" class="icon" :user="notification.user"/>
+		<img v-else class="icon" :src="notification.icon" alt=""/>
+		<div class="sub-icon" :class="notification.type">
 			<fa :icon="faPlus" v-if="notification.type === 'follow'"/>
-			<fa :icon="faClock" v-if="notification.type === 'receiveFollowRequest'"/>
-			<fa :icon="faCheck" v-if="notification.type === 'followRequestAccepted'"/>
-			<fa :icon="faIdCardAlt" v-if="notification.type === 'groupInvited'"/>
-			<fa :icon="faRetweet" v-if="notification.type === 'renote'"/>
-			<fa :icon="faReply" v-if="notification.type === 'reply'"/>
-			<fa :icon="faAt" v-if="notification.type === 'mention'"/>
-			<fa :icon="faQuoteLeft" v-if="notification.type === 'quote'"/>
-			<x-reaction-icon v-if="notification.type === 'reaction'" :reaction="notification.reaction" :no-style="true"/>
+			<fa :icon="faClock" v-else-if="notification.type === 'receiveFollowRequest'"/>
+			<fa :icon="faCheck" v-else-if="notification.type === 'followRequestAccepted'"/>
+			<fa :icon="faIdCardAlt" v-else-if="notification.type === 'groupInvited'"/>
+			<fa :icon="faRetweet" v-else-if="notification.type === 'renote'"/>
+			<fa :icon="faReply" v-else-if="notification.type === 'reply'"/>
+			<fa :icon="faAt" v-else-if="notification.type === 'mention'"/>
+			<fa :icon="faQuoteLeft" v-else-if="notification.type === 'quote'"/>
+			<x-reaction-icon v-else-if="notification.type === 'reaction'" :reaction="notification.reaction" :no-style="true"/>
 		</div>
 	</div>
 	<div class="tail">
 		<header>
-			<router-link class="name" :to="notification.user | userPage" v-user-preview="notification.user.id"><mk-user-name :user="notification.user"/></router-link>
+			<router-link v-if="notification.user" class="name" :to="notification.user | userPage" v-user-preview="notification.user.id"><mk-user-name :user="notification.user"/></router-link>
+			<span v-else>{{ notification.header }}</span>
 			<mk-time :time="notification.createdAt" v-if="withTime"/>
 		</header>
 		<router-link v-if="notification.type === 'reaction'" class="text" :to="notification.note | notePage" :title="getNoteSummary(notification.note)">
@@ -42,6 +44,9 @@
 		<span v-if="notification.type === 'followRequestAccepted'" class="text" style="opacity: 0.6;">{{ $t('followRequestAccepted') }}</span>
 		<span v-if="notification.type === 'receiveFollowRequest'" class="text" style="opacity: 0.6;">{{ $t('receiveFollowRequest') }}<div v-if="full && !followRequestDone"><button class="_textButton" @click="acceptFollowRequest()">{{ $t('accept') }}</button> | <button class="_textButton" @click="rejectFollowRequest()">{{ $t('reject') }}</button></div></span>
 		<span v-if="notification.type === 'groupInvited'" class="text" style="opacity: 0.6;">{{ $t('groupInvited') }}: <b>{{ notification.invitation.group.name }}</b><div v-if="full && !groupInviteDone"><button class="_textButton" @click="acceptGroupInvitation()">{{ $t('accept') }}</button> | <button class="_textButton" @click="rejectGroupInvitation()">{{ $t('reject') }}</button></div></span>
+		<span v-if="notification.type === 'app'" class="text">
+			<mfm :text="notification.body" :nowrap="!full"/>
+		</span>
 	</div>
 </div>
 </template>
@@ -142,14 +147,14 @@ export default Vue.extend({
 		height: 42px;
 		margin-right: 8px;
 
-		> .avatar {
+		> .icon {
 			display: block;
 			width: 100%;
 			height: 100%;
 			border-radius: 6px;
 		}
 
-		> .icon {
+		> .sub-icon {
 			position: absolute;
 			z-index: 1;
 			bottom: -2px;
@@ -163,6 +168,10 @@ export default Vue.extend({
 			font-size: 12px;
 			pointer-events: none;
 
+			&:empty {
+				display: none;
+			}
+
 			> * {
 				color: #fff;
 				width: 100%;
diff --git a/src/client/pages/apps.vue b/src/client/pages/apps.vue
new file mode 100644
index 000000000..03c6707f9
--- /dev/null
+++ b/src/client/pages/apps.vue
@@ -0,0 +1,101 @@
+<template>
+<div>
+	<portal to="icon"><fa :icon="faPlug"/></portal>
+	<portal to="title">{{ $t('installedApps') }}</portal>
+
+	<mk-pagination :pagination="pagination" class="bfomjevm" ref="list">
+		<template #empty>
+			<div class="_fullinfo">
+				<img src="https://xn--931a.moe/assets/info.jpg" class="_ghost"/>
+				<div>{{ $t('nothing') }}</div>
+			</div>
+		</template>
+		<template #default="{items}">
+			<div class="token _panel" v-for="token in items" :key="token.id">
+				<img class="icon" :src="token.iconUrl" alt=""/>
+				<div class="body">
+					<div class="name">{{ token.name }}</div>
+					<div class="description">{{ token.description }}</div>
+					<div class="_keyValue">
+						<div>{{ $t('installedDate') }}:</div>
+						<div><mk-time :time="token.createdAt"/></div>
+					</div>
+					<div class="_keyValue">
+						<div>{{ $t('lastUsedDate') }}:</div>
+						<div><mk-time :time="token.lastUsedAt"/></div>
+					</div>
+					<div class="actions">
+						<button class="_button" @click="revoke(token)"><fa :icon="faTrashAlt"/></button>
+					</div>
+				</div>
+			</div>
+		</template>
+	</mk-pagination>
+</div>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+import { faTrashAlt, faPlug } from '@fortawesome/free-solid-svg-icons';
+import MkPagination from '../components/ui/pagination.vue';
+
+export default Vue.extend({
+	metaInfo() {
+		return {
+			title: this.$t('installedApps') as string
+		};
+	},
+
+	components: {
+		MkPagination
+	},
+
+	data() {
+		return {
+			pagination: {
+				endpoint: 'i/apps',
+				limit: 100,
+				params: {
+					sort: '+lastUsedAt'
+				}
+			},
+			faTrashAlt, faPlug
+		};
+	},
+
+	methods: {
+		revoke(token) {
+			this.$root.api('i/revoke-token', { tokenId: token.id }).then(() => {
+				this.$refs.list.reload();
+			});
+		}
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+.bfomjevm {
+	> .token {
+		display: flex;
+		padding: 16px;
+
+		> .icon {
+			display: block;
+			flex-shrink: 0;
+			margin: 0 12px 0 0;
+			width: 50px;
+			height: 50px;
+			border-radius: 8px;
+		}
+
+		> .body {
+			width: calc(100% - 62px);
+			position: relative;
+
+			> .name {
+				font-weight: bold;
+			}
+		}
+	}
+}
+</style>
diff --git a/src/client/pages/auth.vue b/src/client/pages/auth.vue
index 9f5b45f00..e025924fe 100755
--- a/src/client/pages/auth.vue
+++ b/src/client/pages/auth.vue
@@ -12,20 +12,18 @@
 		@accepted="accepted"
 	/>
 	<div class="denied _panel" v-if="state == 'denied'">
-		<h1>{{ $t('denied') }}</h1>
-		<p>{{ $t('denied-paragraph') }}</p>
+		<h1>{{ $t('_auth.denied') }}</h1>
 	</div>
 	<div class="accepted _panel" v-if="state == 'accepted'">
 		<h1>{{ session.app.isAuthorized ? this.$t('already-authorized') : this.$t('allowed') }}</h1>
-		<p v-if="session.app.callbackUrl">{{ $t('callback-url') }}<mk-ellipsis/></p>
-		<p v-if="!session.app.callbackUrl">{{ $t('please-go-back') }}</p>
+		<p v-if="session.app.callbackUrl">{{ $t('_auth.callback') }}<mk-ellipsis/></p>
+		<p v-if="!session.app.callbackUrl">{{ $t('_auth.pleaseGoBack') }}</p>
 	</div>
 	<div class="error _panel" v-if="state == 'fetch-session-error'">
 		<p>{{ $t('error') }}</p>
 	</div>
 </div>
 <div class="signin" v-else>
-	<h1>{{ $t('sign-in') }}</h1>
 	<mk-signin @login="onLogin"/>
 </div>
 </template>
diff --git a/src/client/pages/doc.vue b/src/client/pages/doc.vue
index e0db5a374..7c4f7ebcc 100644
--- a/src/client/pages/doc.vue
+++ b/src/client/pages/doc.vue
@@ -18,6 +18,7 @@
 import Vue from 'vue';
 import { faFileAlt } from '@fortawesome/free-solid-svg-icons'
 import MarkdownIt from 'markdown-it';
+import MarkdownItAnchor from 'markdown-it-anchor';
 import i18n from '../i18n';
 import { url, lang } from '../config';
 import MkLink from '../components/link.vue';
@@ -26,6 +27,10 @@ const markdown = MarkdownIt({
 	html: true
 });
 
+markdown.use(MarkdownItAnchor, {
+	slugify: (s) => encodeURIComponent(String(s).trim().replace(/\s+/g, '-'))
+});
+
 export default Vue.extend({
 	i18n,
 
@@ -72,6 +77,9 @@ export default Vue.extend({
 		},
 
 		parse(md: string) {
+			// 変数置換
+			md = md.replace(/\{_URL_\}/g, url);
+
 			// markdown の全容をパースする
 			const parsed = markdown.parse(md, {});
 			if (parsed.length === 0) return;
@@ -115,6 +123,23 @@ export default Vue.extend({
 		margin-bottom: 0;
 	}
 
+	::v-deep a {
+		color: var(--link);
+	}
+
+	::v-deep blockquote {
+		display: block;
+		margin: 8px;
+		padding: 6px 0 6px 12px;
+		color: var(--fg);
+		border-left: solid 3px var(--fg);
+		opacity: 0.7;
+
+		p {
+			margin: 0;
+		}
+	}
+
 	::v-deep h2 {
 		font-size: 1.25em;
 		padding: 0 0 0.5em 0;
diff --git a/src/client/pages/follow-requests.vue b/src/client/pages/follow-requests.vue
index a900bf735..b310d9f58 100644
--- a/src/client/pages/follow-requests.vue
+++ b/src/client/pages/follow-requests.vue
@@ -5,7 +5,7 @@
 
 	<mk-pagination :pagination="pagination" class="mk-follow-requests" ref="list">
 		<template #empty>
-			<div class="tkdrhpxr">
+			<div class="_fullinfo">
 				<img src="https://xn--931a.moe/assets/info.jpg" class="_ghost"/>
 				<div>{{ $t('noFollowRequests') }}</div>
 			</div>
@@ -75,18 +75,6 @@ export default Vue.extend({
 
 <style lang="scss" scoped>
 .mk-follow-requests {
-	.tkdrhpxr {
-		padding: 32px;
-		text-align: center;
-
-		> img {
-			vertical-align: bottom;
-			height: 128px;
-			margin-bottom: 16px;
-			border-radius: 16px;
-		}
-	}
-
 	> .user {
 		display: flex;
 		padding: 16px;
diff --git a/src/client/pages/messaging/index.vue b/src/client/pages/messaging/index.vue
index ed24f8ef5..7a55004cb 100644
--- a/src/client/pages/messaging/index.vue
+++ b/src/client/pages/messaging/index.vue
@@ -31,7 +31,7 @@
 			</div>
 		</router-link>
 	</div>
-	<div class="no-history" v-if="!fetching && messages.length == 0">
+	<div class="_fullinfo" v-if="!fetching && messages.length == 0">
 		<img src="https://xn--931a.moe/assets/info.jpg" class="_ghost"/>
 		<div>{{ $t('noHistory') }}</div>
 	</div>
@@ -287,18 +287,6 @@ export default Vue.extend({
 		}
 	}
 
-	> .no-history {
-		padding: 32px;
-		text-align: center;
-
-		> img {
-			vertical-align: bottom;
-			height: 128px;
-			margin-bottom: 16px;
-			border-radius: 16px;
-		}
-	}
-
 	@media (max-width: 400px) {
 		> .history {
 			> .message {
diff --git a/src/client/pages/miauth.vue b/src/client/pages/miauth.vue
new file mode 100644
index 000000000..2ee0f2347
--- /dev/null
+++ b/src/client/pages/miauth.vue
@@ -0,0 +1,103 @@
+<template>
+<div v-if="$store.getters.isSignedIn">
+	<div class="waiting _card" v-if="state == 'waiting'">
+		<div class="_content">
+			<mk-loading/>
+		</div>
+	</div>
+	<div class="denied _card" v-if="state == 'denied'">
+		<div class="_content">
+			<p>{{ $t('_auth.denied') }}</p>
+		</div>
+	</div>
+	<div class="accepted _card" v-else-if="state == 'accepted'">
+		<div class="_content">
+			<p v-if="callback">{{ $t('_auth.callback') }}<mk-ellipsis/></p>
+			<p v-else>{{ $t('_auth.pleaseGoBack') }}</p>
+		</div>
+	</div>
+	<div class="_card" v-else>
+		<div class="_title" v-if="name">{{ $t('_auth.shareAccess', { name: name }) }}</div>
+		<div class="_title" v-else>{{ $t('_auth.shareAccessAsk') }}</div>
+		<div class="_content">
+			<p>{{ $t('_auth.permissionAsk') }}</p>
+			<ul>
+				<template v-for="p in permission">
+					<li :key="p">{{ $t(`_permissions.${p}`) }}</li>
+				</template>
+			</ul>
+		</div>
+		<div class="_footer">
+			<mk-button @click="deny" inline>{{ $t('cancel') }}</mk-button>
+			<mk-button @click="accept" inline primary>{{ $t('accept') }}</mk-button>
+		</div>
+	</div>
+</div>
+<div class="signin" v-else>
+	<mk-signin @login="onLogin"/>
+</div>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+import i18n from '../i18n';
+import MkSignin from '../components/signin.vue';
+import MkButton from '../components/ui/button.vue';
+
+export default Vue.extend({
+	i18n,
+	components: {
+		MkSignin,
+		MkButton,
+	},
+	data() {
+		return {
+			state: null
+		};
+	},
+	computed: {
+		session(): string {
+			return this.$route.params.session;
+		},
+		callback(): string {
+			return this.$route.query.callback;
+		},
+		name(): string {
+			return this.$route.query.name;
+		},
+		icon(): string {
+			return this.$route.query.icon;
+		},
+		permission(): string {
+			return this.$route.query.permission;
+		},
+	},
+	methods: {
+		async accept() {
+			this.state = 'waiting';
+			await this.$root.api('miauth/gen-token', {
+				session: this.session,
+				name: this.name,
+				iconUrl: this.icon,
+				permission: this.permission || [],
+			});
+
+			this.state = 'accepted';
+			if (this.callback) {
+				location.href = `${this.callback}?session=${this.session}`;
+			}
+		},
+		deny() {
+			this.state = 'denied';
+		},
+		onLogin(res) {
+			localStorage.setItem('i', res.i);
+			location.reload();
+		}
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+
+</style>
diff --git a/src/client/pages/my-settings/index.vue b/src/client/pages/my-settings/index.vue
index 4742793f2..c3080e0f8 100644
--- a/src/client/pages/my-settings/index.vue
+++ b/src/client/pages/my-settings/index.vue
@@ -32,7 +32,9 @@
 	<x-integration/>
 	<x-api/>
 
-	<mk-button @click="$root.signout()" primary style="margin: var(--margin) auto;">{{ $t('logout') }}</mk-button>
+	<router-link class="_panel _buttonPrimary" to="/my/apps" style="margin: var(--margin) auto;">{{ $t('installedApps') }}</router-link>
+
+	<button class="_panel _buttonPrimary" @click="$root.signout()" style="margin: var(--margin) auto;">{{ $t('logout') }}</button>
 </div>
 </template>
 
diff --git a/src/client/pages/preferences/theme.vue b/src/client/pages/preferences/theme.vue
index fcea45739..f35b5d6ed 100644
--- a/src/client/pages/preferences/theme.vue
+++ b/src/client/pages/preferences/theme.vue
@@ -57,7 +57,8 @@
 			<mk-textarea v-model="installThemeCode">
 				<span>{{ $t('_theme.code') }}</span>
 			</mk-textarea>
-			<mk-button @click="() => install(this.installThemeCode)" :disabled="installThemeCode == null"><fa :icon="faCheck"/> {{ $t('install') }}</mk-button>
+			<mk-button @click="() => install(this.installThemeCode)" :disabled="installThemeCode == null" primary inline><fa :icon="faCheck"/> {{ $t('install') }}</mk-button>
+			<mk-button @click="() => preview(this.installThemeCode)" :disabled="installThemeCode == null" inline><fa :icon="faEye"/> {{ $t('preview') }}</mk-button>
 		</details>
 	</div>
 	<div class="_content">
@@ -79,7 +80,7 @@
 
 <script lang="ts">
 import Vue from 'vue';
-import { faPalette, faDownload, faFolderOpen, faCheck, faTrashAlt } from '@fortawesome/free-solid-svg-icons';
+import { faPalette, faDownload, faFolderOpen, faCheck, faTrashAlt, faEye } from '@fortawesome/free-solid-svg-icons';
 import * as JSON5 from 'json5';
 import MkInput from '../../components/ui/input.vue';
 import MkButton from '../../components/ui/button.vue';
@@ -108,7 +109,7 @@ export default Vue.extend({
 			installThemeCode: null,
 			selectedThemeId: null,
 			wallpaper: localStorage.getItem('wallpaper'),
-			faPalette, faDownload, faFolderOpen, faCheck, faTrashAlt
+			faPalette, faDownload, faFolderOpen, faCheck, faTrashAlt, faEye
 		}
 	},
 
@@ -196,8 +197,9 @@ export default Vue.extend({
 			});
 		},
 
-		install(code) {
+		parseThemeCode(code) {
 			let theme;
+
 			try {
 				theme = JSON5.parse(code);
 			} catch (e) {
@@ -205,22 +207,34 @@ export default Vue.extend({
 					type: 'error',
 					text: this.$t('_theme.invalid')
 				});
-				return;
+				return false;
 			}
 			if (!validateTheme(theme)) {
 				this.$root.dialog({
 					type: 'error',
 					text: this.$t('_theme.invalid')
 				});
-				return;
+				return false;
 			}
 			if (this.$store.state.device.themes.some(t => t.id === theme.id)) {
 				this.$root.dialog({
 					type: 'info',
 					text: this.$t('_theme.alreadyInstalled')
 				});
-				return;
+				return false;
 			}
+
+			return theme;
+		},
+
+		preview(code) {
+			const theme = this.parseThemeCode(code);
+			if (theme) applyTheme(theme, false);
+		},
+
+		install(code) {
+			const theme = this.parseThemeCode(code);
+			if (!theme) return;
 			const themes = this.$store.state.device.themes.concat(theme);
 			this.$store.commit('device/set', {
 				key: 'themes', value: themes
diff --git a/src/client/router.ts b/src/client/router.ts
index 83445fea7..9644ede55 100644
--- a/src/client/router.ts
+++ b/src/client/router.ts
@@ -46,6 +46,7 @@ export const router = new VueRouter({
 		{ path: '/my/groups', component: page('my-groups/index') },
 		{ path: '/my/groups/:group', component: page('my-groups/group') },
 		{ path: '/my/antennas', component: page('my-antennas/index') },
+		{ path: '/my/apps', component: page('apps') },
 		{ path: '/preferences', component: page('preferences/index') },
 		{ path: '/instance', component: page('instance/index') },
 		{ path: '/instance/emojis', component: page('instance/emojis') },
@@ -58,6 +59,7 @@ export const router = new VueRouter({
 		{ path: '/notes/:note', name: 'note', component: page('note') },
 		{ path: '/tags/:tag', component: page('tag') },
 		{ path: '/auth/:token', component: page('auth') },
+		{ path: '/miauth/:session', component: page('miauth') },
 		{ path: '/authorize-follow', component: page('follow') },
 		{ path: '/share', component: page('share') },
 		{ path: '*', component: page('not-found') }
diff --git a/src/client/style.scss b/src/client/style.scss
index 7b509e5b5..57906d5ae 100644
--- a/src/client/style.scss
+++ b/src/client/style.scss
@@ -412,6 +412,26 @@ main ._panel {
 	}
 }
 
+._fullinfo {
+	padding: 32px;
+	text-align: center;
+
+	> img {
+		vertical-align: bottom;
+		height: 128px;
+		margin-bottom: 16px;
+		border-radius: 16px;
+	}
+}
+
+._keyValue {
+	display: flex;
+
+	> div {
+		flex: 1;
+	}
+}
+
 ._link {
 	color: var(--link);
 }
diff --git a/src/db/postgre.ts b/src/db/postgre.ts
index 021fe9ef6..57703fb09 100644
--- a/src/db/postgre.ts
+++ b/src/db/postgre.ts
@@ -57,6 +57,7 @@ import { Antenna } from '../models/entities/antenna';
 import { AntennaNote } from '../models/entities/antenna-note';
 import { PromoNote } from '../models/entities/promo-note';
 import { PromoRead } from '../models/entities/promo-read';
+import { program } from '../argv';
 
 const sqlLogger = dbLogger.createSubLogger('sql', 'white', false);
 
@@ -149,7 +150,7 @@ export const entities = [
 	...charts as any
 ];
 
-export function initDb(justBorrow = false, sync = false, log = false, forceRecreate = false) {
+export function initDb(justBorrow = false, sync = false, forceRecreate = false) {
 	if (!forceRecreate) {
 		try {
 			const conn = getConnection();
@@ -157,6 +158,8 @@ export function initDb(justBorrow = false, sync = false, log = false, forceRecre
 		} catch (e) {}
 	}
 
+	const log = program.verbose;
+
 	return createConnection({
 		type: 'postgres',
 		host: config.db.host,
diff --git a/src/docs/api.ja-JP.md b/src/docs/api.ja-JP.md
index 6e1eba065..8d07cc415 100644
--- a/src/docs/api.ja-JP.md
+++ b/src/docs/api.ja-JP.md
@@ -1,3 +1,62 @@
 # Misskey API
 
-[APIリファレンス](/api-doc)
+MisskeyAPIを使ってMisskeyクライアント、Misskey連携Webサービス、Bot等(以下「アプリケーション」と呼びます)を開発できます。
+ストリーミングAPIもあるので、リアルタイム性のあるアプリケーションを作ることも可能です。
+
+APIを使い始めるには、まずアクセストークンを取得する必要があります。
+このドキュメントでは、アクセストークンを取得する手順を説明した後、基本的なAPIの使い方を説明します。
+
+## アクセストークンの取得
+基本的に、APIはリクエストにはアクセストークンが必要となります。
+あなたの作ろうとしているアプリケーションが、あなた専用のものなのか、それとも不特定多数の人に使ってもらうものなのかによって、アクセストークンの取得手順は異なります。
+
+* あなた専用の場合: [「自分のアカウントのアクセストークンを取得する」](#自分のアカウントのアクセストークンを取得する)に進む
+* 皆に使ってもらう場合: [「アプリケーションとしてアクセストークンを取得する」](#アプリケーションとしてアクセストークンを取得する)に進む
+
+### 自分のアカウントのアクセストークンを取得する
+「設定 > API」で、自分のアクセストークンを取得できます。
+
+> この方法で入手したアクセストークンは強力なので、第三者に教えないでください(アプリなどにも入力しないでください)。
+
+[「APIの使い方」へ進む](#APIの使い方)
+
+### アプリケーションとしてアクセストークンを取得する
+アプリケーションを使ってもらうには、ユーザーのアクセストークンを以下の手順で取得する必要があります。
+
+#### Step 1
+
+UUIDを生成する。以後これをセッションIDと呼びます。
+
+#### Step 2
+
+`{_URL_}/miauth/{session}`をユーザーのブラウザで表示させる。`{session}`の部分は、セッションIDに置き換えてください。
+> 例: `{_URL_}/miauth/c1f6d42b-468b-4fd2-8274-e58abdedef6f`
+
+表示する際、URLにクエリパラメータとしていくつかのオプションを設定できます:
+* `name` ... アプリケーション名
+	* > 例: `MissDeck`
+* `icon` ... アプリケーションのアイコン画像URL
+	* > 例: `https://missdeck.example.com/icon.png`
+* `callback` ... 認証が終わった後にリダイレクトするURL
+	* > 例: `https://missdeck.example.com/callback`
+	* リダイレクト時には、`session`というクエリパラメータでセッションIDが付きます
+* `permission` ... アプリケーションが要求する権限
+	* > 例: `write:notes,write:following,read:drive`
+	* 要求する権限を`,`で区切って列挙します
+	* どのような権限があるかは[APIリファレンス](/api-doc)で確認できます
+
+#### Step 3
+ユーザーが連携を許可した後、`{_URL_}/miauth/{session}/check`にPOSTリクエストすると、レスポンスとしてアクセストークンを含むJSONが返ります。
+
+レスポンスに含まれるプロパティ:
+* `token` ... ユーザーのアクセストークン
+* `user` ... ユーザーの情報
+
+[「APIの使い方」へ進む](#APIの使い方)
+
+## APIの使い方
+**APIはすべてPOSTで、リクエスト/レスポンスともにJSON形式です。RESTではありません。**
+アクセストークンは、`i`というパラメータ名でリクエストに含めます。
+
+* [APIリファレンス](/api-doc)
+* [ストリーミングAPI](./stream)
diff --git a/src/models/entities/access-token.ts b/src/models/entities/access-token.ts
index 137bf1444..5f41b3c1f 100644
--- a/src/models/entities/access-token.ts
+++ b/src/models/entities/access-token.ts
@@ -13,12 +13,26 @@ export class AccessToken {
 	})
 	public createdAt: Date;
 
+	@Column('timestamp with time zone', {
+		nullable: true,
+		default: null,
+	})
+	public lastUsedAt: Date | null;
+
 	@Index()
 	@Column('varchar', {
 		length: 128
 	})
 	public token: string;
 
+	@Index()
+	@Column('varchar', {
+		length: 128,
+		nullable: true,
+		default: null
+	})
+	public session: string | null;
+
 	@Index()
 	@Column('varchar', {
 		length: 128
@@ -35,12 +49,48 @@ export class AccessToken {
 	@JoinColumn()
 	public user: User | null;
 
-	@Column(id())
-	public appId: App['id'];
+	@Column({
+		...id(),
+		nullable: true,
+		default: null
+	})
+	public appId: App['id'] | null;
 
 	@ManyToOne(type => App, {
 		onDelete: 'CASCADE'
 	})
 	@JoinColumn()
 	public app: App | null;
+
+	@Column('varchar', {
+		length: 128,
+		nullable: true,
+		default: null
+	})
+	public name: string | null;
+
+	@Column('varchar', {
+		length: 512,
+		nullable: true,
+		default: null
+	})
+	public description: string | null;
+
+	@Column('varchar', {
+		length: 512,
+		nullable: true,
+		default: null
+	})
+	public iconUrl: string | null;
+
+	@Column('varchar', {
+		length: 64, array: true,
+		default: '{}'
+	})
+	public permission: string[];
+
+	@Column('boolean', {
+		default: false
+	})
+	public fetched: boolean;
 }
diff --git a/src/models/entities/notification.ts b/src/models/entities/notification.ts
index cd3fe9b01..565645a5d 100644
--- a/src/models/entities/notification.ts
+++ b/src/models/entities/notification.ts
@@ -4,6 +4,7 @@ import { id } from '../id';
 import { Note } from './note';
 import { FollowRequest } from './follow-request';
 import { UserGroupInvitation } from './user-group-invitation';
+import { AccessToken } from './access-token';
 
 @Entity()
 export class Notification {
@@ -35,11 +36,13 @@ export class Notification {
 	/**
 	 * 通知の送信者(initiator)
 	 */
+	@Index()
 	@Column({
 		...id(),
+		nullable: true,
 		comment: 'The ID of sender user of the Notification.'
 	})
-	public notifierId: User['id'];
+	public notifierId: User['id'] | null;
 
 	@ManyToOne(type => User, {
 		onDelete: 'CASCADE'
@@ -59,16 +62,19 @@ export class Notification {
 	 * receiveFollowRequest - フォローリクエストされた
 	 * followRequestAccepted - 自分の送ったフォローリクエストが承認された
 	 * groupInvited - グループに招待された
+	 * app - アプリ通知
 	 */
+	@Index()
 	@Column('enum', {
-		enum: ['follow', 'mention', 'reply', 'renote', 'quote', 'reaction', 'pollVote', 'receiveFollowRequest', 'followRequestAccepted', 'groupInvited'],
+		enum: ['follow', 'mention', 'reply', 'renote', 'quote', 'reaction', 'pollVote', 'receiveFollowRequest', 'followRequestAccepted', 'groupInvited', 'app'],
 		comment: 'The type of the Notification.'
 	})
-	public type: 'follow' | 'mention' | 'reply' | 'renote' | 'quote' | 'reaction' | 'pollVote' | 'receiveFollowRequest' | 'followRequestAccepted' | 'groupInvited';
+	public type: 'follow' | 'mention' | 'reply' | 'renote' | 'quote' | 'reaction' | 'pollVote' | 'receiveFollowRequest' | 'followRequestAccepted' | 'groupInvited' | 'app';
 
 	/**
 	 * 通知が読まれたかどうか
 	 */
+	@Index()
 	@Column('boolean', {
 		default: false,
 		comment: 'Whether the Notification is read.'
@@ -114,10 +120,52 @@ export class Notification {
 	@Column('varchar', {
 		length: 128, nullable: true
 	})
-	public reaction: string;
+	public reaction: string | null;
 
 	@Column('integer', {
 		nullable: true
 	})
-	public choice: number;
+	public choice: number | null;
+
+	/**
+	 * アプリ通知のbody
+	 */
+	@Column('varchar', {
+		length: 2048, nullable: true
+	})
+	public customBody: string | null;
+
+	/**
+	 * アプリ通知のheader
+	 * (省略時はアプリ名で表示されることを期待)
+	 */
+	@Column('varchar', {
+		length: 256, nullable: true
+	})
+	public customHeader: string | null;
+
+	/**
+	 * アプリ通知のicon(URL)
+	 * (省略時はアプリアイコンで表示されることを期待)
+	 */
+	@Column('varchar', {
+		length: 1024, nullable: true
+	})
+	public customIcon: string | null;
+
+	/**
+	 * アプリ通知のアプリ(のトークン)
+	 */
+	@Index()
+	@Column({
+		...id(),
+		nullable: true
+	})
+	public appAccessTokenId: AccessToken['id'] | null;
+
+	@ManyToOne(type => AccessToken, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public appAccessToken: AccessToken | null;
 }
diff --git a/src/models/repositories/notification.ts b/src/models/repositories/notification.ts
index f020714f8..a8978cc01 100644
--- a/src/models/repositories/notification.ts
+++ b/src/models/repositories/notification.ts
@@ -1,5 +1,5 @@
 import { EntityRepository, Repository } from 'typeorm';
-import { Users, Notes, UserGroupInvitations } from '..';
+import { Users, Notes, UserGroupInvitations, AccessTokens } from '..';
 import { Notification } from '../entities/notification';
 import { ensure } from '../../prelude/ensure';
 import { awaitAll } from '../../prelude/await-all';
@@ -13,13 +13,14 @@ export class NotificationRepository extends Repository<Notification> {
 		src: Notification['id'] | Notification,
 	): Promise<PackedNotification> {
 		const notification = typeof src === 'object' ? src : await this.findOne(src).then(ensure);
+		const token = notification.appAccessTokenId ? await AccessTokens.findOne(notification.appAccessTokenId).then(ensure) : null;
 
 		return await awaitAll({
 			id: notification.id,
 			createdAt: notification.createdAt.toISOString(),
 			type: notification.type,
 			userId: notification.notifierId,
-			user: Users.pack(notification.notifier || notification.notifierId),
+			user: notification.notifierId ? Users.pack(notification.notifier || notification.notifierId) : null,
 			...(notification.type === 'mention' ? {
 				note: Notes.pack(notification.note || notification.noteId!, notification.notifieeId),
 			} : {}),
@@ -43,6 +44,11 @@ export class NotificationRepository extends Repository<Notification> {
 			...(notification.type === 'groupInvited' ? {
 				invitation: UserGroupInvitations.pack(notification.userGroupInvitationId!),
 			} : {}),
+			...(notification.type === 'app' ? {
+				body: notification.customBody,
+				header: notification.customHeader || token!.name,
+				icon: notification.customIcon || token!.iconUrl,
+			} : {}),
 		});
 	}
 
diff --git a/src/server/api/authenticate.ts b/src/server/api/authenticate.ts
index 519ed7738..c3e277e8d 100644
--- a/src/server/api/authenticate.ts
+++ b/src/server/api/authenticate.ts
@@ -1,9 +1,10 @@
 import isNativeToken from './common/is-native-token';
 import { User } from '../../models/entities/user';
-import { App } from '../../models/entities/app';
 import { Users, AccessTokens, Apps } from '../../models';
+import { ensure } from '../../prelude/ensure';
+import { AccessToken } from '../../models/entities/access-token';
 
-export default async (token: string): Promise<[User | null | undefined, App | null | undefined]> => {
+export default async (token: string): Promise<[User | null | undefined, AccessToken | null | undefined]> => {
 	if (token == null) {
 		return [null, null];
 	}
@@ -27,14 +28,25 @@ export default async (token: string): Promise<[User | null | undefined, App | nu
 			throw new Error('invalid signature');
 		}
 
-		const app = await Apps
-			.findOne(accessToken.appId);
+		AccessTokens.update(accessToken.id, {
+			lastUsedAt: new Date(),
+		});
 
 		const user = await Users
 			.findOne({
 				id: accessToken.userId // findOne(accessToken.userId) のように書かないのは後方互換性のため
 			});
 
-		return [user, app];
+		if (accessToken.appId) {
+			const app = await Apps
+				.findOne(accessToken.appId).then(ensure);
+
+			return [user, {
+				id: accessToken.id,
+				permission: app.permission
+			} as AccessToken];
+		} else {
+			return [user, accessToken];
+		}
 	}
 };
diff --git a/src/server/api/call.ts b/src/server/api/call.ts
index 37bcf7ce1..7911eb9b4 100644
--- a/src/server/api/call.ts
+++ b/src/server/api/call.ts
@@ -4,7 +4,7 @@ import { User } from '../../models/entities/user';
 import endpoints from './endpoints';
 import { ApiError } from './error';
 import { apiLogger } from './logger';
-import { App } from '../../models/entities/app';
+import { AccessToken } from '../../models/entities/access-token';
 
 const accessDenied = {
 	message: 'Access denied.',
@@ -12,8 +12,8 @@ const accessDenied = {
 	id: '56f35758-7dd5-468b-8439-5d6fb8ec9b8e'
 };
 
-export default async (endpoint: string, user: User | null | undefined, app: App | null | undefined, data: any, file?: any) => {
-	const isSecure = user != null && app == null;
+export default async (endpoint: string, user: User | null | undefined, token: AccessToken | null | undefined, data: any, file?: any) => {
+	const isSecure = user != null && token == null;
 
 	const ep = endpoints.find(e => e.name === endpoint);
 
@@ -51,7 +51,7 @@ export default async (endpoint: string, user: User | null | undefined, app: App
 		throw new ApiError(accessDenied, { reason: 'You are not a moderator.' });
 	}
 
-	if (app && ep.meta.kind && !app.permission.some(p => p === ep.meta.kind)) {
+	if (token && ep.meta.kind && !token.permission.some(p => p === ep.meta.kind)) {
 		throw new ApiError({
 			message: 'Your app does not have the necessary permissions to use this endpoint.',
 			code: 'PERMISSION_DENIED',
@@ -73,7 +73,7 @@ export default async (endpoint: string, user: User | null | undefined, app: App
 
 	// API invoking
 	const before = performance.now();
-	return await ep.exec(data, user, app, file).catch((e: Error) => {
+	return await ep.exec(data, user, token, file).catch((e: Error) => {
 		if (e instanceof ApiError) {
 			throw e;
 		} else {
diff --git a/src/server/api/define.ts b/src/server/api/define.ts
index 1fd4543bd..2ee0ba486 100644
--- a/src/server/api/define.ts
+++ b/src/server/api/define.ts
@@ -2,8 +2,8 @@ import * as fs from 'fs';
 import { ILocalUser } from '../../models/entities/user';
 import { IEndpointMeta } from './endpoints';
 import { ApiError } from './error';
-import { App } from '../../models/entities/app';
 import { SchemaType } from '../../misc/schema';
+import { AccessToken } from '../../models/entities/access-token';
 
 // TODO: defaultが設定されている場合はその型も考慮する
 type Params<T extends IEndpointMeta> = {
@@ -15,12 +15,12 @@ type Params<T extends IEndpointMeta> = {
 export type Response = Record<string, any> | void;
 
 type executor<T extends IEndpointMeta> =
-	(params: Params<T>, user: T['requireCredential'] extends true ? ILocalUser : ILocalUser | null, app: App, file?: any, cleanup?: Function) =>
+	(params: Params<T>, user: T['requireCredential'] extends true ? ILocalUser : ILocalUser | null, token: AccessToken, file?: any, cleanup?: Function) =>
 		Promise<T['res'] extends undefined ? Response : SchemaType<NonNullable<T['res']>>>;
 
 export default function <T extends IEndpointMeta>(meta: T, cb: executor<T>)
-		: (params: any, user: T['requireCredential'] extends true ? ILocalUser : ILocalUser | null, app: App, file?: any) => Promise<any> {
-	return (params: any, user: T['requireCredential'] extends true ? ILocalUser : ILocalUser | null, app: App, file?: any) => {
+		: (params: any, user: T['requireCredential'] extends true ? ILocalUser : ILocalUser | null, token: AccessToken, file?: any) => Promise<any> {
+	return (params: any, user: T['requireCredential'] extends true ? ILocalUser : ILocalUser | null, token: AccessToken, file?: any) => {
 		function cleanup() {
 			fs.unlink(file.path, () => {});
 		}
@@ -37,7 +37,7 @@ export default function <T extends IEndpointMeta>(meta: T, cb: executor<T>)
 			return Promise.reject(pserr);
 		}
 
-		return cb(ps, user, app, file, cleanup);
+		return cb(ps, user, token, file, cleanup);
 	};
 }
 
diff --git a/src/server/api/endpoints/app/show.ts b/src/server/api/endpoints/app/show.ts
index 2c8cdbe39..e3f3a1eaa 100644
--- a/src/server/api/endpoints/app/show.ts
+++ b/src/server/api/endpoints/app/show.ts
@@ -28,8 +28,8 @@ export const meta = {
 	}
 };
 
-export default define(meta, async (ps, user, app) => {
-	const isSecure = user != null && app == null;
+export default define(meta, async (ps, user, token) => {
+	const isSecure = token == null;
 
 	// Lookup app
 	const ap = await Apps.findOne(ps.appId);
diff --git a/src/server/api/endpoints/drive/files/create.ts b/src/server/api/endpoints/drive/files/create.ts
index 3c5c98253..c0bb6bcc6 100644
--- a/src/server/api/endpoints/drive/files/create.ts
+++ b/src/server/api/endpoints/drive/files/create.ts
@@ -78,7 +78,7 @@ export const meta = {
 	}
 };
 
-export default define(meta, async (ps, user, app, file, cleanup) => {
+export default define(meta, async (ps, user, _, file, cleanup) => {
 	// Get 'name' parameter
 	let name = ps.name || file.originalname;
 	if (name !== undefined && name !== null) {
diff --git a/src/server/api/endpoints/i.ts b/src/server/api/endpoints/i.ts
index d22de40c6..02d59682b 100644
--- a/src/server/api/endpoints/i.ts
+++ b/src/server/api/endpoints/i.ts
@@ -19,8 +19,8 @@ export const meta = {
 	},
 };
 
-export default define(meta, async (ps, user, app) => {
-	const isSecure = user != null && app == null;
+export default define(meta, async (ps, user, token) => {
+	const isSecure = token == null;
 
 	return await Users.pack(user, user, {
 		detail: true,
diff --git a/src/server/api/endpoints/i/apps.ts b/src/server/api/endpoints/i/apps.ts
new file mode 100644
index 000000000..38299cd0d
--- /dev/null
+++ b/src/server/api/endpoints/i/apps.ts
@@ -0,0 +1,41 @@
+import $ from 'cafy';
+import define from '../../define';
+import { AccessTokens } from '../../../../models';
+
+export const meta = {
+	requireCredential: true as const,
+
+	secure: true,
+
+	params: {
+		sort: {
+			validator: $.optional.str.or([
+				'+createdAt',
+				'-createdAt',
+				'+lastUsedAt',
+				'-lastUsedAt',
+			]),
+		},
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const query = AccessTokens.createQueryBuilder('token');
+
+	switch (ps.sort) {
+		case '+createdAt': query.orderBy('token.createdAt', 'DESC'); break;
+		case '-createdAt': query.orderBy('token.createdAt', 'ASC'); break;
+		case '+lastUsedAt': query.andWhere('token.lastUsedAt IS NOT NULL').orderBy('token.lastUsedAt', 'DESC'); break;
+		case '-lastUsedAt': query.andWhere('token.lastUsedAt IS NOT NULL').orderBy('token.lastUsedAt', 'ASC'); break;
+		default: query.orderBy('token.id', 'ASC'); break;
+	}
+
+	const tokens = await query.getMany();
+
+	return await Promise.all(tokens.map(token => ({
+		id: token.id,
+		name: token.name,
+		createdAt: token.createdAt,
+		lastUsedAt: token.lastUsedAt,
+	})));
+});
diff --git a/src/server/api/endpoints/i/revoke-token.ts b/src/server/api/endpoints/i/revoke-token.ts
new file mode 100644
index 000000000..ce688c575
--- /dev/null
+++ b/src/server/api/endpoints/i/revoke-token.ts
@@ -0,0 +1,24 @@
+import $ from 'cafy';
+import define from '../../define';
+import { AccessTokens } from '../../../../models';
+import { ID } from '../../../../misc/cafy-id';
+
+export const meta = {
+	requireCredential: true as const,
+
+	secure: true,
+
+	params: {
+		tokenId: {
+			validator: $.type(ID)
+		}
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const token = await AccessTokens.findOne(ps.tokenId);
+
+	if (token) {
+		AccessTokens.delete(token.id);
+	}
+});
diff --git a/src/server/api/endpoints/i/update.ts b/src/server/api/endpoints/i/update.ts
index 5c4a9576e..c90f05025 100644
--- a/src/server/api/endpoints/i/update.ts
+++ b/src/server/api/endpoints/i/update.ts
@@ -178,8 +178,8 @@ export const meta = {
 	}
 };
 
-export default define(meta, async (ps, user, app) => {
-	const isSecure = user != null && app == null;
+export default define(meta, async (ps, user, token) => {
+	const isSecure = token == null;
 
 	const updates = {} as Partial<User>;
 	const profileUpdates = {} as Partial<UserProfile>;
diff --git a/src/server/api/endpoints/miauth/gen-token.ts b/src/server/api/endpoints/miauth/gen-token.ts
new file mode 100644
index 000000000..efa868080
--- /dev/null
+++ b/src/server/api/endpoints/miauth/gen-token.ts
@@ -0,0 +1,55 @@
+import rndstr from 'rndstr';
+import $ from 'cafy';
+import define from '../../define';
+import { AccessTokens } from '../../../../models';
+import { genId } from '../../../../misc/gen-id';
+
+export const meta = {
+	tags: ['auth'],
+
+	requireCredential: true as const,
+
+	secure: true,
+
+	params: {
+		session: {
+			validator: $.str
+		},
+
+		name: {
+			validator: $.nullable.optional.str
+		},
+
+		description: {
+			validator: $.nullable.optional.str,
+		},
+
+		iconUrl: {
+			validator: $.nullable.optional.str,
+		},
+
+		permission: {
+			validator: $.arr($.str).unique(),
+		},
+	},
+};
+
+export default define(meta, async (ps, user) => {
+	// Generate access token
+	const accessToken = rndstr('a-zA-Z0-9', 32);
+
+	// Insert access token doc
+	await AccessTokens.save({
+		id: genId(),
+		createdAt: new Date(),
+		lastUsedAt: new Date(),
+		session: ps.session,
+		userId: user.id,
+		token: accessToken,
+		hash: accessToken,
+		name: ps.name,
+		description: ps.description,
+		iconUrl: ps.iconUrl,
+		permission: ps.permission,
+	});
+});
diff --git a/src/server/api/endpoints/notes/create.ts b/src/server/api/endpoints/notes/create.ts
index e983ad6fd..cccf138ad 100644
--- a/src/server/api/endpoints/notes/create.ts
+++ b/src/server/api/endpoints/notes/create.ts
@@ -209,7 +209,7 @@ export const meta = {
 	}
 };
 
-export default define(meta, async (ps, user, app) => {
+export default define(meta, async (ps, user) => {
 	let visibleUsers: User[] = [];
 	if (ps.visibleUserIds) {
 		visibleUsers = (await Promise.all(ps.visibleUserIds.map(id => Users.findOne(id))))
@@ -281,7 +281,6 @@ export default define(meta, async (ps, user, app) => {
 		reply,
 		renote,
 		cw: ps.cw,
-		app,
 		viaMobile: ps.viaMobile,
 		localOnly: ps.localOnly,
 		visibility: ps.visibility,
diff --git a/src/server/api/endpoints/notes/polls/vote.ts b/src/server/api/endpoints/notes/polls/vote.ts
index 3c5492f8e..45210b5a6 100644
--- a/src/server/api/endpoints/notes/polls/vote.ts
+++ b/src/server/api/endpoints/notes/polls/vote.ts
@@ -132,7 +132,8 @@ export default define(meta, async (ps, user) => {
 	});
 
 	// Notify
-	createNotification(note.userId, user.id, 'pollVote', {
+	createNotification(note.userId, 'pollVote', {
+		notifierId: user.id,
 		noteId: note.id,
 		choice: ps.choice
 	});
@@ -143,7 +144,8 @@ export default define(meta, async (ps, user) => {
 		userId: Not(user.id),
 	}).then(watchers => {
 		for (const watcher of watchers) {
-			createNotification(watcher.userId, user.id, 'pollVote', {
+			createNotification(watcher.userId, 'pollVote', {
+				notifierId: user.id,
 				noteId: note.id,
 				choice: ps.choice
 			});
diff --git a/src/server/api/endpoints/notifications/create.ts b/src/server/api/endpoints/notifications/create.ts
new file mode 100644
index 000000000..fed422b64
--- /dev/null
+++ b/src/server/api/endpoints/notifications/create.ts
@@ -0,0 +1,37 @@
+import $ from 'cafy';
+import define from '../../define';
+import { createNotification } from '../../../../services/create-notification';
+
+export const meta = {
+	tags: ['notifications'],
+
+	requireCredential: true as const,
+
+	kind: 'write:notifications',
+
+	params: {
+		body: {
+			validator: $.str
+		},
+
+		header: {
+			validator: $.optional.nullable.str
+		},
+
+		icon: {
+			validator: $.optional.nullable.str
+		},
+	},
+
+	errors: {
+	}
+};
+
+export default define(meta, async (ps, user, token) => {
+	createNotification(user.id, 'app', {
+		appAccessTokenId: token.id,
+		customBody: ps.body,
+		customHeader: ps.header,
+		customIcon: ps.icon,
+	});
+});
diff --git a/src/server/api/endpoints/users/groups/invite.ts b/src/server/api/endpoints/users/groups/invite.ts
index da0fd1c2c..a0f5091b0 100644
--- a/src/server/api/endpoints/users/groups/invite.ts
+++ b/src/server/api/endpoints/users/groups/invite.ts
@@ -104,7 +104,8 @@ export default define(meta, async (ps, me) => {
 	} as UserGroupInvitation);
 
 	// 通知を作成
-	createNotification(user.id, me.id, 'groupInvited', {
+	createNotification(user.id, 'groupInvited', {
+		notifierId: me.id,
 		userGroupInvitationId: invitation.id
 	});
 });
diff --git a/src/server/api/index.ts b/src/server/api/index.ts
index 258e632bd..49209ede4 100644
--- a/src/server/api/index.ts
+++ b/src/server/api/index.ts
@@ -15,7 +15,7 @@ import signin from './private/signin';
 import discord from './service/discord';
 import github from './service/github';
 import twitter from './service/twitter';
-import { Instances } from '../../models';
+import { Instances, AccessTokens, Users } from '../../models';
 
 // Init app
 const app = new Koa();
@@ -73,6 +73,28 @@ router.get('/v1/instance/peers', async ctx => {
 	ctx.body = instances.map(instance => instance.host);
 });
 
+router.post('/miauth/:session/check', async ctx => {
+	const token = await AccessTokens.findOne({
+		session: ctx.params.session
+	});
+
+	if (token && !token.fetched) {
+		AccessTokens.update(token.id, {
+			fetched: true
+		});
+		
+		ctx.body = {
+			ok: true,
+			token: token.token,
+			user: await Users.pack(token.userId, null, { detail: true })
+		};
+	} else {
+		ctx.body = {
+			ok: false,
+		};
+	}
+});
+
 // Return 404 for unknown API
 router.all('*', async ctx => {
 	ctx.status = 404;
diff --git a/src/server/api/openapi/description.ts b/src/server/api/openapi/description.ts
index a4b79d950..4fff53ac9 100644
--- a/src/server/api/openapi/description.ts
+++ b/src/server/api/openapi/description.ts
@@ -42,52 +42,7 @@ export function getDescription(lang = 'ja-JP'): string {
 		.join('\n');
 
 	const descriptions = {
-		'ja-JP': `**Misskey is a decentralized microblogging platform.**
-
-# Usage
-**APIはすべてPOSTでリクエスト/レスポンスともにJSON形式です。**
-一部のAPIはリクエストに認証情報(APIキー)が必要です。リクエストの際に\`i\`というパラメータでAPIキーを添付してください。
-
-## 自分のアカウントのAPIキーを取得する
-「設定 > API」で、自分のAPIキーを取得できます。
-
-> アカウントを不正利用される可能性があるため、このトークンは第三者に教えないでください(アプリなどにも入力しないでください)。
-
-## アプリケーションとしてAPIキーを取得する
-直接ユーザーのAPIキーをアプリケーションが扱うのはセキュリティ上のリスクがあるので、
-アプリケーションからAPIを利用する際には、アプリケーションとアプリケーションを利用するユーザーが結び付けられた専用のAPIキーを発行します。
-
-### 1.アプリケーションを登録する
-まず、あなたのアプリケーションやWebサービス(以後、あなたのアプリと呼びます)をMisskeyに登録します。
-[デベロッパーセンター](/dev)にアクセスし、「アプリ > アプリ作成」からアプリを作成してください。
-
-登録が済むとあなたのアプリのシークレットキーが入手できます。このシークレットキーは後で使用します。
-
-> アプリに成りすまされる可能性があるため、極力このシークレットキーは公開しないようにしてください。</p>
-
-### 2.ユーザーに認証させる
-アプリを使ってもらうには、ユーザーにアカウントへのアクセスの許可をもらう必要があります。
-
-認証セッションを開始するには、[${config.apiUrl}/auth/session/generate](#operation/auth/session/generate) へパラメータに\`appSecret\`としてシークレットキーを含めたリクエストを送信します。
-レスポンスとして認証セッションのトークンや認証フォームのURLが取得できるので、認証フォームのURLをブラウザで表示し、ユーザーにフォームを提示してください。
-
-あなたのアプリがコールバックURLを設定している場合、
-ユーザーがあなたのアプリの連携を許可すると設定しているコールバックURLに\`token\`という名前でセッションのトークンが含まれたクエリを付けてリダイレクトします。
-
-あなたのアプリがコールバックURLを設定していない場合、ユーザーがあなたのアプリの連携を許可したことを(何らかの方法で(たとえばボタンを押させるなど))確認出来るようにしてください。
-
-### 3.アクセストークンを取得する
-ユーザーが連携を許可したら、[${config.apiUrl}/auth/session/userkey](#operation/auth/session/userkey) へリクエストを送信します。
-
-上手くいけば、認証したユーザーのアクセストークンがレスポンスとして取得できます。おめでとうございます！
-
-アクセストークンが取得できたら、*「ユーザーのアクセストークン+あなたのアプリのシークレットキーをsha256したもの」*をAPIキーとして、APIにリクエストできます。
-
-APIキーの生成方法を擬似コードで表すと次のようになります:
-\`\`\` js
-const i = sha256(userToken + secretKey);
-\`\`\`
-
+		'ja-JP': `
 # Permissions
 |Permisson (kind)|Description|Endpoints|
 |:--|:--|:--|
diff --git a/src/server/api/stream/index.ts b/src/server/api/stream/index.ts
index 463ae0a60..05594ac72 100644
--- a/src/server/api/stream/index.ts
+++ b/src/server/api/stream/index.ts
@@ -7,9 +7,9 @@ import Channel from './channel';
 import channels from './channels';
 import { EventEmitter } from 'events';
 import { User } from '../../../models/entities/user';
-import { App } from '../../../models/entities/app';
 import { Users, Followings, Mutings } from '../../../models';
 import { ApiError } from '../error';
+import { AccessToken } from '../../../models/entities/access-token';
 
 /**
  * Main stream connection
@@ -18,7 +18,7 @@ export default class Connection {
 	public user?: User;
 	public following: User['id'][] = [];
 	public muting: User['id'][] = [];
-	public app: App;
+	public token: AccessToken;
 	private wsConnection: websocket.connection;
 	public subscriber: EventEmitter;
 	private channels: Channel[] = [];
@@ -30,12 +30,12 @@ export default class Connection {
 		wsConnection: websocket.connection,
 		subscriber: EventEmitter,
 		user: User | null | undefined,
-		app: App | null | undefined
+		token: AccessToken | null | undefined
 	) {
 		this.wsConnection = wsConnection;
 		this.subscriber = subscriber;
 		if (user) this.user = user;
-		if (app) this.app = app;
+		if (token) this.token = token;
 
 		this.wsConnection.on('message', this.onWsConnectionMessage);
 
@@ -83,7 +83,7 @@ export default class Connection {
 		const endpoint = payload.endpoint || payload.ep; // alias
 
 		// 呼び出し
-		call(endpoint, user, this.app, payload.data).then(res => {
+		call(endpoint, user, this.token, payload.data).then(res => {
 			this.sendMessageToWs(`api:${payload.id}`, { res });
 		}).catch((e: ApiError) => {
 			this.sendMessageToWs(`api:${payload.id}`, {
diff --git a/src/services/create-notification.ts b/src/services/create-notification.ts
index c5c6e7144..7fc8bfaf5 100644
--- a/src/services/create-notification.ts
+++ b/src/services/create-notification.ts
@@ -3,46 +3,26 @@ import pushSw from './push-notification';
 import { Notifications, Mutings } from '../models';
 import { genId } from '../misc/gen-id';
 import { User } from '../models/entities/user';
-import { Note } from '../models/entities/note';
 import { Notification } from '../models/entities/notification';
-import { FollowRequest } from '../models/entities/follow-request';
-import { UserGroupInvitation } from '../models/entities/user-group-invitation';
 
 export async function createNotification(
 	notifieeId: User['id'],
-	notifierId: User['id'],
 	type: Notification['type'],
-	content?: {
-		noteId?: Note['id'];
-		reaction?: string;
-		choice?: number;
-		followRequestId?: FollowRequest['id'];
-		userGroupInvitationId?: UserGroupInvitation['id'];
-	}
+	data: Partial<Notification>
 ) {
-	if (notifieeId === notifierId) {
+	if (data.notifierId && (notifieeId === data.notifierId)) {
 		return null;
 	}
 
-	const data = {
+	// Create notification
+	const notification = await Notifications.save({
 		id: genId(),
 		createdAt: new Date(),
 		notifieeId: notifieeId,
-		notifierId: notifierId,
 		type: type,
 		isRead: false,
-	} as Partial<Notification>;
-
-	if (content) {
-		if (content.noteId) data.noteId = content.noteId;
-		if (content.reaction) data.reaction = content.reaction;
-		if (content.choice) data.choice = content.choice;
-		if (content.followRequestId) data.followRequestId = content.followRequestId;
-		if (content.userGroupInvitationId) data.userGroupInvitationId = content.userGroupInvitationId;
-	}
-
-	// Create notification
-	const notification = await Notifications.save(data);
+		...data
+	} as Partial<Notification>);
 
 	const packed = await Notifications.pack(notification);
 
@@ -58,7 +38,7 @@ export async function createNotification(
 			const mutings = await Mutings.find({
 				muterId: notifieeId
 			});
-			if (mutings.map(m => m.muteeId).includes(notifierId)) {
+			if (data.notifierId && mutings.map(m => m.muteeId).includes(data.notifierId)) {
 				return;
 			}
 			//#endregion
diff --git a/src/services/following/create.ts b/src/services/following/create.ts
index ce352ffbc..c5f130f49 100644
--- a/src/services/following/create.ts
+++ b/src/services/following/create.ts
@@ -57,7 +57,9 @@ export async function insertFollowingDoc(followee: User, follower: User) {
 		});
 
 		// 通知を作成
-		createNotification(follower.id, followee.id, 'followRequestAccepted');
+		createNotification(follower.id, 'followRequestAccepted', {
+			notifierId: followee.id,
+		});
 	}
 
 	if (alreadyFollowed) return;
@@ -95,7 +97,9 @@ export async function insertFollowingDoc(followee: User, follower: User) {
 		Users.pack(follower, followee).then(packed => publishMainStream(followee.id, 'followed', packed)),
 
 		// 通知を作成
-		createNotification(followee.id, follower.id, 'follow');
+		createNotification(followee.id, 'follow', {
+			notifierId: follower.id
+		});
 	}
 }
 
diff --git a/src/services/following/requests/create.ts b/src/services/following/requests/create.ts
index 1c6bac0fb..deaeedb9a 100644
--- a/src/services/following/requests/create.ts
+++ b/src/services/following/requests/create.ts
@@ -50,7 +50,8 @@ export default async function(follower: User, followee: User, requestId?: string
 		}).then(packed => publishMainStream(followee.id, 'meUpdated', packed));
 
 		// 通知を作成
-		createNotification(followee.id, follower.id, 'receiveFollowRequest', {
+		createNotification(followee.id, 'receiveFollowRequest', {
+			notifierId: follower.id,
 			followRequestId: followRequest.id
 		});
 	}
diff --git a/src/services/logger.ts b/src/services/logger.ts
index 0e26e80ed..eb2b257dd 100644
--- a/src/services/logger.ts
+++ b/src/services/logger.ts
@@ -54,6 +54,7 @@ export default class Logger {
 	private log(level: Level, message: string, data?: Record<string, any> | null, important = false, subDomains: Domain[] = [], store = true): void {
 		if (program.quiet) return;
 		if (!this.store) store = false;
+		if (level === 'debug') store = false;
 
 		if (this.parentLogger) {
 			this.parentLogger.log(level, message, data, important, [this.domain].concat(subDomains), store);
diff --git a/src/services/note/create.ts b/src/services/note/create.ts
index 50586e8bc..60a5a5e69 100644
--- a/src/services/note/create.ts
+++ b/src/services/note/create.ts
@@ -78,7 +78,8 @@ class NotificationManager {
 
 			// 通知される側のユーザーが通知する側のユーザーをミュートしていない限りは通知する
 			if (!mentioneesMutedUserIds.includes(this.notifier.id)) {
-				createNotification(x.target, this.notifier.id, x.reason, {
+				createNotification(x.target, x.reason, {
+					notifierId: this.notifier.id,
 					noteId: this.note.id
 				});
 			}
diff --git a/src/services/note/polls/vote.ts b/src/services/note/polls/vote.ts
index aee52ba10..7350c813a 100644
--- a/src/services/note/polls/vote.ts
+++ b/src/services/note/polls/vote.ts
@@ -48,7 +48,8 @@ export default async function(user: User, note: Note, choice: number) {
 	});
 
 	// Notify
-	createNotification(note.userId, user.id, 'pollVote', {
+	createNotification(note.userId, 'pollVote', {
+		notifierId: user.id,
 		noteId: note.id,
 		choice: choice
 	});
@@ -60,7 +61,8 @@ export default async function(user: User, note: Note, choice: number) {
 	})
 	.then(watchers => {
 		for (const watcher of watchers) {
-			createNotification(watcher.userId, user.id, 'pollVote', {
+			createNotification(watcher.userId, 'pollVote', {
+				notifierId: user.id,
 				noteId: note.id,
 				choice: choice
 			});
diff --git a/src/services/note/reaction/create.ts b/src/services/note/reaction/create.ts
index 166c4e1f8..72750affe 100644
--- a/src/services/note/reaction/create.ts
+++ b/src/services/note/reaction/create.ts
@@ -66,7 +66,8 @@ export default async (user: User, note: Note, reaction?: string) => {
 
 	// リアクションされたユーザーがローカルユーザーなら通知を作成
 	if (note.userHost === null) {
-		createNotification(note.userId, user.id, 'reaction', {
+		createNotification(note.userId, 'reaction', {
+			notifierId: user.id,
 			noteId: note.id,
 			reaction: reaction
 		});
@@ -78,7 +79,8 @@ export default async (user: User, note: Note, reaction?: string) => {
 		userId: Not(user.id)
 	}).then(watchers => {
 		for (const watcher of watchers) {
-			createNotification(watcher.userId, user.id, 'reaction', {
+			createNotification(watcher.userId, 'reaction', {
+				notifierId: user.id,
 				noteId: note.id,
 				reaction: reaction
 			});
diff --git a/test/chart.ts b/test/chart.ts
index 30dba9414..06c84a5b0 100644
--- a/test/chart.ts
+++ b/test/chart.ts
@@ -63,7 +63,7 @@ describe('Chart', () => {
 
 	after(async(async () => {
 		await connection.close();
-		await initDb(true, undefined, undefined, true);
+		await initDb(true, undefined, true);
 	}));
 
 	beforeEach(done => {
diff --git a/yarn.lock b/yarn.lock
index 0f4918613..840a2ed16 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6111,6 +6111,11 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+markdown-it-anchor@5.2.5:
+  version "5.2.5"
+  resolved "https://registry.yarnpkg.com/markdown-it-anchor/-/markdown-it-anchor-5.2.5.tgz#dbf13cfcdbffd16a510984f1263e1d479a47d27a"
+  integrity sha512-xLIjLQmtym3QpoY9llBgApknl7pxAcN3WDRc2d3rwpl+/YvDZHPmKscGs+L6E05xf2KrCXPBvosWt7MZukwSpQ==
+
 markdown-it@10.0.0:
   version "10.0.0"
   resolved "https://registry.yarnpkg.com/markdown-it/-/markdown-it-10.0.0.tgz#abfc64f141b1722d663402044e43927f1f50a8dc"