diff --git a/keyserver/package.json b/keyserver/package.json
--- a/keyserver/package.json
+++ b/keyserver/package.json
@@ -78,7 +78,8 @@
     "tcomb": "^3.2.29",
     "twin-bcrypt": "^2.1.1",
     "uuid": "^3.3.3",
-    "web": "0.0.1"
+    "web": "0.0.1",
+    "web-push": "^3.5.0"
   },
   "optionalDependencies": {
     "bufferutil": "^4.0.5",
diff --git a/keyserver/src/push/providers.js b/keyserver/src/push/providers.js
--- a/keyserver/src/push/providers.js
+++ b/keyserver/src/push/providers.js
@@ -5,6 +5,7 @@
 import fcmAdmin from 'firebase-admin';
 import type { FirebaseApp } from 'firebase-admin';
 import invariant from 'invariant';
+import webpush from 'web-push';
 
 import { importJSON } from '../utils/import-json.js';
 
@@ -80,6 +81,26 @@
   return codeVersion && codeVersion >= 87 ? 'app.comm' : 'org.squadcal.app';
 }
 
+type WebPushConfig = { +publicKey: string, +privateKey: string };
+let cachedWebPushConfig: ?WebPushConfig = null;
+async function getWebPushConfig(): Promise<?WebPushConfig> {
+  if (cachedWebPushConfig) {
+    return cachedWebPushConfig;
+  }
+  cachedWebPushConfig = await importJSON<WebPushConfig>({
+    folder: 'secrets',
+    name: 'web_push_config',
+  });
+  if (cachedWebPushConfig) {
+    webpush.setVapidDetails(
+      'mailto:support@comm.app',
+      cachedWebPushConfig.publicKey,
+      cachedWebPushConfig.privateKey,
+    );
+  }
+  return cachedWebPushConfig;
+}
+
 export {
   getAPNPushProfileForCodeVersion,
   getFCMPushProfileForCodeVersion,
@@ -88,4 +109,5 @@
   endFirebase,
   endAPNs,
   getAPNsNotificationTopic,
+  getWebPushConfig,
 };
diff --git a/keyserver/src/responders/website-responders.js b/keyserver/src/responders/website-responders.js
--- a/keyserver/src/responders/website-responders.js
+++ b/keyserver/src/responders/website-responders.js
@@ -40,6 +40,7 @@
   fetchCurrentUserInfo,
   fetchKnownUserInfos,
 } from '../fetchers/user-fetchers.js';
+import { getWebPushConfig } from '../push/providers.js';
 import { setNewSession } from '../session/cookies.js';
 import { Viewer } from '../session/viewer.js';
 import { streamJSON, waitForStream } from '../utils/json-stream.js';
@@ -304,6 +305,17 @@
     return hasNotAcknowledgedPolicies ? 0 : initialTime;
   })();
 
+  const pushApiPublicKeyPromise = (async () => {
+    const pushConfig = await getWebPushConfig();
+    if (!pushConfig) {
+      if (process.env.NODE_ENV !== 'development') {
+        console.warn('keyserver/secrets/web_push_config.json should exist');
+      }
+      return null;
+    }
+    return pushConfig.publicKey;
+  })();
+
   const { jsURL, fontsURL, cssInclude } = await assetInfoPromise;
 
   // prettier-ignore
@@ -392,6 +404,7 @@
       primaryIdentityKeys: null,
       notificationIdentityKeys: null,
     },
+    pushApiPublicKey: pushApiPublicKeyPromise,
     _persist: null,
   });
   const jsonStream = streamJSON(res, initialReduxState);
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
@@ -122,6 +122,7 @@
   deviceToken?: void,
   cookie?: void,
   cryptoStore: CryptoStore,
+  pushApiPublicKey: ?string,
   ...
 };
 export type AppState = NativeAppState | WebAppState;
diff --git a/web/redux/redux-setup.js b/web/redux/redux-setup.js
--- a/web/redux/redux-setup.js
+++ b/web/redux/redux-setup.js
@@ -89,6 +89,7 @@
   windowActive: boolean,
   userPolicies: UserPolicies,
   cryptoStore: CryptoStore,
+  pushApiPublicKey: ?string,
   _persist: ?PersistState,
 };
 
diff --git a/yarn.lock b/yarn.lock
--- a/yarn.lock
+++ b/yarn.lock
@@ -6708,6 +6708,16 @@
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
   integrity sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=
 
+asn1.js@^5.3.0:
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-5.4.1.tgz#11a980b84ebb91781ce35b0fdc2ee294e3783f07"
+  integrity sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==
+  dependencies:
+    bn.js "^4.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+    safer-buffer "^2.1.0"
+
 asn1@~0.2.3:
   version "0.2.6"
   resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.6.tgz#0d3a7bb6e64e02a90c0303b31f292868ea09a08d"
@@ -7434,7 +7444,7 @@
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
-bn.js@^4.11.0, bn.js@^4.11.8, bn.js@^4.11.9:
+bn.js@^4.0.0, bn.js@^4.11.0, bn.js@^4.11.8, bn.js@^4.11.9:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
   integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
@@ -13075,6 +13085,13 @@
     quick-lru "^5.1.1"
     resolve-alpn "^1.0.0"
 
+http_ece@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/http_ece/-/http_ece-1.1.0.tgz#74780c6eb32d8ddfe9e36a83abcd81fe0cd4fb75"
+  integrity sha512-bptAfCDdPJxOs5zYSe7Y3lpr772s1G346R4Td5LgRUeCwIGpCGDUTJxRrhTNcAXbx37spge0kWEIH7QAYWNTlA==
+  dependencies:
+    urlsafe-base64 "~1.0.0"
+
 https-proxy-agent@^5.0.0, https-proxy-agent@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz#c59ef224a04fe8b754f3db0063a25ea30d0005d6"
@@ -23144,6 +23161,11 @@
     punycode "1.3.2"
     querystring "0.2.0"
 
+urlsafe-base64@^1.0.0, urlsafe-base64@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/urlsafe-base64/-/urlsafe-base64-1.0.0.tgz#23f89069a6c62f46cf3a1d3b00169cefb90be0c6"
+  integrity sha512-RtuPeMy7c1UrHwproMZN9gN6kiZ0SvJwRaEzwZY0j9MypEkFqyBaKv176jvlPtg58Zh36bOkS0NFABXMHvvGCA==
+
 use-callback-ref@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/use-callback-ref/-/use-callback-ref-1.3.0.tgz#772199899b9c9a50526fedc4993fc7fa1f7e32d5"
@@ -23530,6 +23552,18 @@
   dependencies:
     defaults "^1.0.3"
 
+web-push@^3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/web-push/-/web-push-3.5.0.tgz#4576533746052eda3bd50414b54a1b0a21eeaeae"
+  integrity sha512-JC0V9hzKTqlDYJ+LTZUXtW7B175qwwaqzbbMSWDxHWxZvd3xY0C2rcotMGDavub2nAAFw+sXTsqR65/KY2A5AQ==
+  dependencies:
+    asn1.js "^5.3.0"
+    http_ece "1.1.0"
+    https-proxy-agent "^5.0.0"
+    jws "^4.0.0"
+    minimist "^1.2.5"
+    urlsafe-base64 "^1.0.0"
+
 webidl-conversions@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"