diff --git a/lib/types/identity-service-types.js b/lib/types/identity-service-types.js
--- a/lib/types/identity-service-types.js
+++ b/lib/types/identity-service-types.js
@@ -1,6 +1,6 @@
 // @flow
 
-import t, { type TInterface, type TList } from 'tcomb';
+import t, { type TInterface, type TList, type TDict } from 'tcomb';
 
 import {
   identityKeysBlobValidator,
@@ -157,6 +157,9 @@
     userID: string,
     sinceTimestamp?: number,
   ) => Promise<$ReadOnlyArray<SignedDeviceList>>;
+  +getDeviceListsForUsers?: (
+    userIDs: $ReadOnlyArray<string>,
+  ) => Promise<UsersSignedDeviceLists>;
   // updating device list is possible only on Native
   // web cannot be a primary device, so there's no need to expose it to JS
   +updateDeviceList?: (newDeviceList: SignedDeviceList) => Promise<void>;
@@ -229,6 +232,12 @@
 export const signedDeviceListHistoryValidator: TList<Array<SignedDeviceList>> =
   t.list(signedDeviceListValidator);
 
+export type UsersSignedDeviceLists = {
+  +[userID: string]: SignedDeviceList,
+};
+export const usersSignedDeviceListsValidator: TDict<UsersSignedDeviceLists> =
+  t.dict(t.String, signedDeviceListValidator);
+
 export type SignedNonce = {
   +nonce: string,
   +nonceSignature: string,
diff --git a/native/identity-service/identity-service-context-provider.react.js b/native/identity-service/identity-service-context-provider.react.js
--- a/native/identity-service/identity-service-context-provider.react.js
+++ b/native/identity-service/identity-service-context-provider.react.js
@@ -10,21 +10,23 @@
   type OneTimeKeysResultValues,
 } from 'lib/types/crypto-types.js';
 import {
-  type SignedDeviceList,
-  signedDeviceListHistoryValidator,
-  type SignedNonce,
+  type DeviceOlmInboundKeys,
+  deviceOlmInboundKeysValidator,
   type DeviceOlmOutboundKeys,
   deviceOlmOutboundKeysValidator,
+  farcasterUsersValidator,
+  identityAuthResultValidator,
   type IdentityServiceClient,
-  type UserDevicesOlmOutboundKeys,
-  type UserAuthMetadata,
   ONE_TIME_KEYS_NUMBER,
-  identityAuthResultValidator,
-  type DeviceOlmInboundKeys,
-  type UserDevicesOlmInboundKeys,
-  deviceOlmInboundKeysValidator,
+  type SignedDeviceList,
+  signedDeviceListHistoryValidator,
+  type SignedNonce,
+  type UserAuthMetadata,
   userDeviceOlmInboundKeysValidator,
-  farcasterUsersValidator,
+  type UserDevicesOlmInboundKeys,
+  type UserDevicesOlmOutboundKeys,
+  type UsersSignedDeviceLists,
+  usersSignedDeviceListsValidator,
 } from 'lib/types/identity-service-types.js';
 import { getContentSigningKey } from 'lib/utils/crypto-utils.js';
 import { assertWithValidator } from 'lib/utils/validation-utils.js';
@@ -545,6 +547,33 @@
           signedDeviceListHistoryValidator,
         );
       },
+      getDeviceListsForUsers: async (userIDs: $ReadOnlyArray<string>) => {
+        const {
+          deviceID: authDeviceID,
+          userID: authUserID,
+          accessToken: token,
+        } = await getAuthMetadata();
+        const result = await commRustModule.getDeviceListsForUsers(
+          authUserID,
+          authDeviceID,
+          token,
+          userIDs,
+        );
+        const rawPayloads: { +[userID: string]: string } = JSON.parse(result);
+
+        let usersDeviceLists: UsersSignedDeviceLists = {};
+        for (const userID in rawPayloads) {
+          usersDeviceLists = {
+            ...usersDeviceLists,
+            [userID]: JSON.parse(rawPayloads[userID]),
+          };
+        }
+
+        return assertWithValidator(
+          usersDeviceLists,
+          usersSignedDeviceListsValidator,
+        );
+      },
       updateDeviceList: async (newDeviceList: SignedDeviceList) => {
         const {
           deviceID: authDeviceID,