diff --git a/src/client/app/admin/views/instance.vue b/src/client/app/admin/views/instance.vue
index 4c234ec260..84a6e49db7 100644
--- a/src/client/app/admin/views/instance.vue
+++ b/src/client/app/admin/views/instance.vue
@@ -45,6 +45,12 @@
 		<section>
 			<ui-button @click="updateMeta">{{ $t('save') }}</ui-button>
 		</section>
+		<section>
+			<header><fa :icon="faUserPlus"/> {{ $t('user-recommendation-config') }}</header>
+			<ui-switch v-model="enableExternalUserRecommendation">{{ $t('enable-external-user-recommendation') }}</ui-switch>
+			<ui-input v-model="externalUserRecommendationEngine" :disabled="!enableExternalUserRecommendation">{{ $t('external-user-recommendation-engine') }}</ui-input>
+			<ui-input v-model="externalUserRecommendationTimeout" type="number" :disabled="!enableExternalUserRecommendation">{{ $t('external-user-recommendation-timeout') }}<span slot="suffix">ns</span><span slot="desc">{{ $t('ns') }}</span></ui-input>
+		</section>
 	</ui-card>
 
 	<ui-card>
@@ -95,7 +101,7 @@ import Vue from 'vue';
 import i18n from '../../i18n';
 import { host } from '../../config';
 import { toUnicode } from 'punycode';
-import { faHeadset, faShieldAlt, faGhost } from '@fortawesome/free-solid-svg-icons';
+import { faHeadset, faShieldAlt, faGhost, faUserPlus } from '@fortawesome/free-solid-svg-icons';
 
 export default Vue.extend({
 	i18n: i18n('admin/views/instance.vue'),
@@ -129,7 +135,10 @@ export default Vue.extend({
 			discordClientSecret: null,
 			proxyAccount: null,
 			inviteCode: null,
-			faHeadset, faShieldAlt, faGhost
+			enableExternalUserRecommendation: false,
+			externalUserRecommendationEngine: null,
+			externalUserRecommendationTimeout: null,
+			faHeadset, faShieldAlt, faGhost, faUserPlus
 		};
 	},
 
@@ -158,6 +167,9 @@ export default Vue.extend({
 			this.enableDiscordIntegration = meta.enableDiscordIntegration;
 			this.discordClientId = meta.discordClientId;
 			this.discordClientSecret = meta.discordClientSecret;
+			this.enableExternalUserRecommendation = meta.ebableExternalUserRecommendation;
+			this.externalUserRecommendationEngine = meta.externalUserRecommendationEngine;
+			this.externalUserRecommendationTimeout = meta.externalUserRecommendationTimeout;
 		});
 	},
 
@@ -199,7 +211,10 @@ export default Vue.extend({
 				githubClientSecret: this.githubClientSecret,
 				enableDiscordIntegration: this.enableDiscordIntegration,
 				discordClientId: this.discordClientId,
-				discordClientSecret: this.discordClientSecret
+				discordClientSecret: this.discordClientSecret,
+				enableExternalUserRecommendation: this.enableExternalUserRecommendation,
+				externalUserRecommendationEngine: this.externalUserRecommendationEngine,
+				externalUserRecommenadtionTimeout: this.externalUserRecommendationTimeout
 			}).then(() => {
 				this.$root.alert({
 					type: 'success',
diff --git a/src/misc/fetch-meta.ts b/src/misc/fetch-meta.ts
index e855097c42..87af2647d6 100644
--- a/src/misc/fetch-meta.ts
+++ b/src/misc/fetch-meta.ts
@@ -15,7 +15,10 @@ const defaultMeta: any = {
 	maxNoteTextLength: 1000,
 	enableTwitterIntegration: false,
 	enableGithubIntegration: false,
-	enableDiscordIntegration: false
+	enableDiscordIntegration: false,
+	enableExternalUserRecommendation: false;
+	externalUserRecommendationEngine: "http://vinayaka.distsn.org/cgi-bin/vinayaka-user-match-misskey-api.cgi?{{host}}+{{user}}+{{limit}}+{{offset}}";
+	externalUserRecommendationTimeout: 300000;
 };
 
 export default async function(): Promise<IMeta> {
diff --git a/src/models/meta.ts b/src/models/meta.ts
index 34117afd25..a8e3c85cff 100644
--- a/src/models/meta.ts
+++ b/src/models/meta.ts
@@ -125,6 +125,19 @@ if ((config as any).github) {
 		}
 	});
 }
+if ((config as any).user_recommendation) {
+	Meta.findOne({}).then(m => {
+		if (m != null && m.enableExternalUserRecommendation == null) {
+			Meta.update({}, {
+				$set: {
+					enableExternalUserRecommendation: true,
+					externalUserRecommendationEngine: (config as any).user_recommendation.engine,
+					externalUserRecommendationTimeout: (config as any).user_recommendation.timeout
+				}
+			});
+		}
+	});
+}
 
 export type IMeta = {
 	name?: string;
@@ -195,4 +208,8 @@ export type IMeta = {
 	enableDiscordIntegration?: boolean;
 	discordClientId?: string;
 	discordClientSecret?: string;
+
+	enableExternalUserRecommendation? boolean;
+	externalUserRecommendationEngine? string;
+	externalUserRecommendationTimeout? number;
 };
diff --git a/src/server/api/endpoints/admin/update-meta.ts b/src/server/api/endpoints/admin/update-meta.ts
index bbae212bd7..956581b94c 100644
--- a/src/server/api/endpoints/admin/update-meta.ts
+++ b/src/server/api/endpoints/admin/update-meta.ts
@@ -200,6 +200,27 @@ export const meta = {
 			desc: {
 				'ja-JP': 'DiscordアプリのClient Secret'
 			}
+		},
+
+		enableExternalUserRecommendation: {
+			validator: $.bool.optional,
+			desc: {
+				'ja-JP': '外部ユーザーレコメンデーションを有効にする'
+			}
+		},
+
+		externalUserRecommendationEngine: {
+			validator: $.str.optional.nullable,
+			desc: {
+				'ja-JP': '外部ユーザーレコメンデーションのサードパーティエンジン'
+			}
+		},
+
+		externalUserRecommendationTimeout: {
+			validator: $.num.optional.min(0),
+			desc: {
+				'ja-JP': '外部ユーザーレコメンデーションのタイムアウト (ミリ秒)'
+			}
 		}
 	}
 };
@@ -315,6 +336,18 @@ export default define(meta, (ps) => new Promise(async (res, rej) => {
 		set.discordClientSecret = ps.discordClientSecret;
 	}
 
+	if (ps.enableExternalUserRecommendation !== undefined) {
+		set.enableExternalUserRecommendation = ps.enableExternalUserRecommendation;
+	}
+
+	if (ps.externalUserRecommendationEngine !== undefined) {
+		set.externalUserRecommendationEngine = ps.externalUserRecommendationEngine;
+	}
+
+	if (ps.externalUserRecommendationTimeout !== undefined) {
+		set.externalUserRecommendationTimeout = ps.externalUserRecommendationTimeout;
+	}
+
 	await Meta.update({}, {
 		$set: set
 	}, { upsert: true });
diff --git a/src/server/api/endpoints/meta.ts b/src/server/api/endpoints/meta.ts
index 9846e95959..e5e2f3365b 100644
--- a/src/server/api/endpoints/meta.ts
+++ b/src/server/api/endpoints/meta.ts
@@ -85,7 +85,11 @@ export default define(meta, (ps, me) => new Promise(async (res, rej) => {
 			github: instance.enableGithubIntegration,
 			discord: instance.enableDiscordIntegration,
 			serviceWorker: config.sw ? true : false,
-			userRecommendation: config.user_recommendation ? config.user_recommendation : {}
+			userRecommendation: {
+				external: instance.enableExternalUserRecommendation,
+				engine: instance.externalUserRecommendationEngine,
+				timeout: instance.externalUserRecommendationTimeout
+			}
 		};
 	}