diff --git a/src/apis/find-public-key.ts b/src/apis/find-public-key.ts
new file mode 100644
index 0000000..46bf918
--- /dev/null
+++ b/src/apis/find-public-key.ts
@@ -0,0 +1,19 @@
+import {client} from "~/constants/axios-client"
+
+export interface FindPublicKeyResponse {
+	publicKey: string
+	type: string
+	createdAt: Date
+}
+
+export default async function findPublicKey(): Promise<FindPublicKeyResponse> {
+	const {data} = await client.post(
+		`${import.meta.env.VITE_SERVER_BASE_URL}/v1/preferences/find-public-key`,
+		{},
+		{
+			withCredentials: true,
+		},
+	)
+
+	return data
+}
diff --git a/src/apis/index.ts b/src/apis/index.ts
index ce3aceb..7d6bbb7 100644
--- a/src/apis/index.ts
+++ b/src/apis/index.ts
@@ -74,3 +74,5 @@ export * from "./get-api-keys"
 export {default as getAPIKeys} from "./get-api-keys"
 export * from "./delete-api-key"
 export {default as deleteAPIKey} from "./delete-api-key"
+export * from "./find-public-key"
+export {default as findPublicKey} from "./find-public-key"
diff --git a/src/apis/update-preferences.ts b/src/apis/update-preferences.ts
index c3b90f8..ffbfe5d 100644
--- a/src/apis/update-preferences.ts
+++ b/src/apis/update-preferences.ts
@@ -9,6 +9,7 @@ export interface UpdatePreferencesData {
 	aliasProxyUserAgent?: ProxyUserAgentType
 	aliasExpandUrlShorteners?: boolean
 	aliasRejectOnPrivacyLeak?: boolean
+	emailGpgPublicKey: string | null
 }
 
 export default async function updatePreferences(