diff --git a/keyserver/flow-typed/npm/hono_vx.x.x.js b/keyserver/flow-typed/npm/hono_vx.x.x.js
--- a/keyserver/flow-typed/npm/hono_vx.x.x.js
+++ b/keyserver/flow-typed/npm/hono_vx.x.x.js
@@ -13,3 +13,12 @@
   }
 }
 
+declare module 'hono/cors' {
+  import type { MiddlewareHandler } from 'hono';
+
+  declare export var cors: ({
+    +origin?: string,
+    +allowMethods?: $ReadOnlyArray<string>,
+  }) => MiddlewareHandler;
+}
+
diff --git a/keyserver/src/frog/frog.js b/keyserver/src/frog/frog.js
--- a/keyserver/src/frog/frog.js
+++ b/keyserver/src/frog/frog.js
@@ -7,15 +7,42 @@
 // eslint-disable-next-line import/extensions
 import { serveStatic } from '@hono/node-server/serve-static';
 import { Button, Frog } from 'frog';
+// eslint-disable-next-line import/extensions
+import { cors } from 'hono/cors';
 
 import { inviteLinkURL } from 'lib/facts/links.js';
 import { ignorePromiseRejections } from 'lib/utils/promises.js';
 
 import { neynarClient } from '../utils/fc-cache.js';
 import { redisCache } from '../utils/redis-cache.js';
+import { getKeyserverURLFacts } from '../utils/urls.js';
+
+const keyserverURLFacts = getKeyserverURLFacts();
+const frogHonoPort: number = parseInt(process.env.FROG_HONO_PORT, 10) || 3001;
+const frogHonoURL: string = (() => {
+  if (process.env.FROG_HONO_URL) {
+    return process.env.FROG_HONO_URL;
+  } else {
+    return `http://localhost:${frogHonoPort}`;
+  }
+})();
 
 function startFrogHonoServer() {
-  const frogApp = new Frog({ title: 'Comm Frame' });
+  const frogApp = new Frog({
+    title: 'Comm Frame',
+    // Mirrors the express server's reverse proxy path so that
+    // frog constructs URLs with the correct path in the HTML response,
+    // ensuring frame requests are forwarded to the frog hono server.
+    basePath: `${keyserverURLFacts?.baseRoutePath ?? '/'}frog/`,
+  });
+
+  frogApp.hono.use(
+    '*',
+    cors({
+      origin: '*',
+      allowMethods: ['GET'],
+    }),
+  );
 
   frogApp.hono.use(
     '/default_farcaster_channel_cover.png',
@@ -151,8 +178,8 @@
 
   serve({
     fetch: frogApp.fetch,
-    port: parseInt(process.env.FROG_PORT, 10) || 3001,
+    port: frogHonoPort,
   });
 }
 
-export { startFrogHonoServer };
+export { startFrogHonoServer, frogHonoURL };
diff --git a/keyserver/src/keyserver.js b/keyserver/src/keyserver.js
--- a/keyserver/src/keyserver.js
+++ b/keyserver/src/keyserver.js
@@ -9,6 +9,7 @@
 import express from 'express';
 import type { $Request, $Response } from 'express';
 import expressWs from 'express-ws';
+import fetch from 'node-fetch';
 import os from 'os';
 import qrcode from 'qrcode';
 import stoppable from 'stoppable';
@@ -23,7 +24,7 @@
 import { latestWrapInTransactionAndBlockRequestsVersion } from './database/migration-config.js';
 import { migrate } from './database/migrations.js';
 import { jsonEndpoints } from './endpoints.js';
-import { startFrogHonoServer } from './frog/frog.js';
+import { startFrogHonoServer, frogHonoURL } from './frog/frog.js';
 import { logEndpointMetrics } from './middleware/endpoint-profiling.js';
 import { emailSubscriptionResponder } from './responders/comm-landing-responders.js';
 import { taggedCommFarcasterResponder } from './responders/farcaster-webhook-responders.js';
@@ -299,6 +300,29 @@
       if (keyserverCorsOptions) {
         keyserverRouter.use(cors(keyserverCorsOptions));
       }
+      keyserverRouter.use('/frog', async (req: $Request, res: $Response) => {
+        try {
+          const targetUrl = `${frogHonoURL}${req.originalUrl}`;
+
+          const fetchResponse = await fetch(targetUrl, {
+            method: req.method,
+            headers: req.headers,
+            body:
+              req.method !== 'GET' && req.method !== 'HEAD'
+                ? JSON.stringify(req.body)
+                : undefined,
+          });
+
+          for (const [key, value] of fetchResponse.headers.entries()) {
+            res.setHeader(key, value);
+          }
+
+          fetchResponse.body.pipe(res);
+        } catch (error) {
+          console.log('Error forwarding request to frog hono server:', error);
+          res.status(500).send('Internal Server Error');
+        }
+      });
 
       keyserverRouter.post(
         '/fc_comm_tagged',