diff --git a/keyserver/src/responders/link-responders.js b/keyserver/src/responders/link-responders.js
--- a/keyserver/src/responders/link-responders.js
+++ b/keyserver/src/responders/link-responders.js
@@ -2,10 +2,11 @@
 
 import t, { type TUnion, type TInterface } from 'tcomb';
 
-import type {
-  InviteLinkVerificationRequest,
-  InviteLinkVerificationResponse,
-  FetchInviteLinksResponse,
+import {
+  type InviteLinkVerificationRequest,
+  type InviteLinkVerificationResponse,
+  type FetchInviteLinksResponse,
+  inviteLinkValidator,
 } from 'lib/types/link-types.js';
 import { tShape, tID } from 'lib/utils/validation-utils.js';
 
@@ -52,13 +53,22 @@
   );
 }
 
+export const fetchInviteLinksResponseValidator: TInterface<FetchInviteLinksResponse> =
+  tShape<FetchInviteLinksResponse>({
+    links: t.list(inviteLinkValidator),
+  });
+
 async function fetchPrimaryInviteLinksResponder(
   viewer: Viewer,
 ): Promise<FetchInviteLinksResponse> {
   const primaryLinks = await fetchPrimaryInviteLinks(viewer);
-  return {
-    links: primaryLinks,
-  };
+  return validateOutput(
+    viewer.platformDetails,
+    fetchInviteLinksResponseValidator,
+    {
+      links: primaryLinks,
+    },
+  );
 }
 
 export { inviteLinkVerificationResponder, fetchPrimaryInviteLinksResponder };
diff --git a/keyserver/src/responders/responder-validators.test.js b/keyserver/src/responders/responder-validators.test.js
--- a/keyserver/src/responders/responder-validators.test.js
+++ b/keyserver/src/responders/responder-validators.test.js
@@ -14,7 +14,10 @@
   restoreEntryResponseValidator,
 } from './entry-responders.js';
 import { getSessionPublicKeysResponseValidator } from './keys-responders.js';
-import { inviteLinkVerificationResponseValidator } from './link-responders.js';
+import {
+  inviteLinkVerificationResponseValidator,
+  fetchInviteLinksResponseValidator,
+} from './link-responders.js';
 import { messageReportCreationResultValidator } from './message-report-responder.js';
 import {
   fetchMessageInfosResponseValidator,
@@ -952,4 +955,22 @@
     expect(inviteLinkVerificationResponseValidator.is(response)).toBe(true);
     expect(inviteLinkVerificationResponseValidator.is({})).toBe(false);
   });
+
+  it('should validate invite link verification response', () => {
+    const response = {
+      links: [
+        {
+          name: 'name',
+          primary: true,
+          role: '123',
+          communityID: '123',
+          expirationTime: 123,
+          limitOfUses: 123,
+          numberOfUses: 123,
+        },
+      ],
+    };
+    expect(fetchInviteLinksResponseValidator.is(response)).toBe(true);
+    expect(fetchInviteLinksResponseValidator.is({ links: {} })).toBe(false);
+  });
 });
diff --git a/lib/types/link-types.js b/lib/types/link-types.js
--- a/lib/types/link-types.js
+++ b/lib/types/link-types.js
@@ -1,5 +1,9 @@
 // @flow
 
+import t, { type TInterface } from 'tcomb';
+
+import { tID, tShape } from '../utils/validation-utils.js';
+
 export type InviteLinkVerificationRequest = {
   +secret: string,
 };
@@ -26,6 +30,16 @@
   +numberOfUses: number,
 };
 
+export const inviteLinkValidator: TInterface<InviteLink> = tShape<InviteLink>({
+  name: t.String,
+  primary: t.Boolean,
+  role: tID,
+  communityID: tID,
+  expirationTime: t.Number,
+  limitOfUses: t.Number,
+  numberOfUses: t.Number,
+});
+
 export type FetchInviteLinksResponse = {
   +links: $ReadOnlyArray<InviteLink>,
 };