diff --git a/lib/actions/keyserver-actions.js b/lib/actions/keyserver-actions.js
new file mode 100644
--- /dev/null
+++ b/lib/actions/keyserver-actions.js
@@ -0,0 +1,5 @@
+// @flow
+
+const addKeyserverActionType = 'ADD_KEYSERVER';
+
+export { addKeyserverActionType };
diff --git a/lib/types/keyserver-types.js b/lib/types/keyserver-types.js
--- a/lib/types/keyserver-types.js
+++ b/lib/types/keyserver-types.js
@@ -27,6 +27,11 @@
   +keyserverInfo: KeyserverInfo,
 };
 
+export type AddKeyserverPayload = {
+  +keyserverAdminUserID: string,
+  +newKeyserverInfo: KeyserverInfo,
+};
+
 export const keyserverInfoValidator: TInterface<KeyserverInfo> =
   tShape<KeyserverInfo>({
     cookie: t.maybe(t.String),
diff --git a/lib/types/redux-types.js b/lib/types/redux-types.js
--- a/lib/types/redux-types.js
+++ b/lib/types/redux-types.js
@@ -39,7 +39,7 @@
   SetCalendarDeletedFilterPayload,
 } from './filter-types.js';
 import type { IntegrityStore } from './integrity-types.js';
-import type { KeyserverStore } from './keyserver-types.js';
+import type { KeyserverStore, AddKeyserverPayload } from './keyserver-types.js';
 import type { LifecycleState } from './lifecycle-state-types.js';
 import type {
   FetchInviteLinksResponse,
@@ -1229,6 +1229,10 @@
   | {
       +type: 'UPDATE_THEME_INFO',
       +payload: Shape<GlobalThemeInfo>,
+    }
+  | {
+      +type: 'ADD_KEYSERVER',
+      +payload: AddKeyserverPayload,
     };
 
 export type ActionPayload = ?(Object | Array<*> | $ReadOnlyArray<*> | string);