diff --git a/frontend/src/store/index.js b/frontend/src/store/index.js
new file mode 100644
index 0000000..9dbf288
--- /dev/null
+++ b/frontend/src/store/index.js
@@ -0,0 +1,35 @@
+import {createStore} from 'vuex';
+
+import {KillSwitchServicePromiseClient} from '../api_proto/kill_switch_grpc_web_pb.js';
+
+export const store = createStore({
+  state() {
+    return {
+      jwtToken: localStorage.getItem('jwtToken'),
+      client: null,
+    };
+  },
+  mutations: {
+    setJwtToken(state, token) {
+      if (token == null)
+        localStorage.removeItem('jwtToken');
+      else
+        localStorage.jwtToken = token;
+
+      state.jwtToken = token;
+    },
+  },
+  getters: {
+    getJwtToken(state) {
+      return state.jwtToken;
+    },
+    isSignedIn(state) {
+      return state.jwtToken != null;
+    },
+  },
+  actions: {
+    connectClient(store, host) {
+      store.state.client = new KillSwitchServicePromiseClient(host, null, null);
+    },
+  },
+});