diff --git a/keyserver/src/scripts/biggest-farcaster-channels.js b/keyserver/src/scripts/biggest-farcaster-channels.js
new file mode 100644
--- /dev/null
+++ b/keyserver/src/scripts/biggest-farcaster-channels.js
@@ -0,0 +1,25 @@
+// @flow
+
+import invariant from 'invariant';
+
+import type { NeynarChannel } from 'lib/types/farcaster-types.js';
+
+import { main } from './utils.js';
+import { neynarClient } from '../utils/fc-cache.js';
+
+async function fetchAllFarcasterChannelsAndPrintSortedByFollowerCount() {
+  invariant(neynarClient, 'neynarClient should be defined');
+  const allChannels = await neynarClient.getAllChannels();
+  allChannels.sort(
+    (channelA: NeynarChannel, channelB: NeynarChannel) =>
+      channelB.follower_count - channelA.follower_count,
+  );
+  const simplifiedChannelInfo = allChannels.map(({ id, follower_count }) => ({
+    id,
+    follower_count,
+  }));
+  simplifiedChannelInfo.splice(1000);
+  console.log(JSON.stringify(simplifiedChannelInfo, undefined, '  '));
+}
+
+main([fetchAllFarcasterChannelsAndPrintSortedByFollowerCount]);
diff --git a/keyserver/src/scripts/utils.js b/keyserver/src/scripts/utils.js
--- a/keyserver/src/scripts/utils.js
+++ b/keyserver/src/scripts/utils.js
@@ -3,6 +3,7 @@
 import { endPool } from '../database/database.js';
 import { endFirebase, endAPNs } from '../push/providers.js';
 import { publisher } from '../socket/redis.js';
+import { initFCCache } from '../utils/fc-cache.js';
 import { prefetchAllURLFacts } from '../utils/urls.js';
 
 function endScript() {
@@ -15,6 +16,7 @@
 function main(functions: $ReadOnlyArray<() => Promise<mixed>>) {
   void (async () => {
     await prefetchAllURLFacts();
+    await initFCCache();
     try {
       for (const f of functions) {
         await f();
diff --git a/keyserver/src/utils/fc-cache.js b/keyserver/src/utils/fc-cache.js
--- a/keyserver/src/utils/fc-cache.js
+++ b/keyserver/src/utils/fc-cache.js
@@ -12,6 +12,7 @@
 type NeynarConfig = { +key: string };
 
 let getFCNames: ?GetFCNames;
+let neynarClient: ?NeynarClient;
 async function initFCCache() {
   const neynarSecret = await getCommConfig<NeynarConfig>({
     folder: 'secrets',
@@ -21,10 +22,10 @@
   if (!neynarKey) {
     return;
   }
-  const neynarClient = new NeynarClient(neynarKey);
+  neynarClient = new NeynarClient(neynarKey);
   const fcCache = new FCCache(neynarClient);
   getFCNames = <T: ?BaseFCInfo>(users: $ReadOnlyArray<T>): Promise<T[]> =>
     baseGetFCNames(fcCache, users);
 }
 
-export { initFCCache, getFCNames };
+export { initFCCache, getFCNames, neynarClient };
diff --git a/lib/types/farcaster-types.js b/lib/types/farcaster-types.js
--- a/lib/types/farcaster-types.js
+++ b/lib/types/farcaster-types.js
@@ -31,5 +31,6 @@
 export type NeynarChannel = {
   +id: string,
   +name: string,
+  +follower_count: number,
   ...
 };
diff --git a/lib/utils/neynar-client.js b/lib/utils/neynar-client.js
--- a/lib/utils/neynar-client.js
+++ b/lib/utils/neynar-client.js
@@ -18,7 +18,7 @@
   },
 };
 
-type FetchFollowedFarcasterChannelsResponse = {
+type FetchFarcasterChannelsResponse = {
   +channels: $ReadOnlyArray<NeynarChannel>,
   +next: {
     +cursor: ?string,
@@ -53,6 +53,7 @@
 
 const fetchFollowerLimit = 150;
 const fetchFollowedChannelsLimit = 100;
+const fetchChannelsLimit = 50;
 
 class NeynarClient {
   apiKey: string;
@@ -129,8 +130,7 @@
           },
         });
 
-        const json: FetchFollowedFarcasterChannelsResponse =
-          await response.json();
+        const json: FetchFarcasterChannelsResponse = await response.json();
 
         const { channels, next } = json;
 
@@ -229,6 +229,48 @@
     } while (fidsLeft.length > 0);
     return results;
   }
+
+  async getAllChannels(): Promise<Array<NeynarChannel>> {
+    const farcasterChannels = [];
+    let paginationCursor = null;
+
+    do {
+      const params: { [string]: string } = {
+        limit: fetchChannelsLimit.toString(),
+        ...(paginationCursor ? { cursor: paginationCursor } : null),
+      };
+
+      const url = getNeynarURL('2', 'channel/list', params);
+
+      try {
+        const response = await fetch(url, {
+          method: 'GET',
+          headers: {
+            Accept: 'application/json',
+            api_key: this.apiKey,
+          },
+        });
+
+        const json: FetchFarcasterChannelsResponse = await response.json();
+
+        const { channels, next } = json;
+
+        channels.forEach(channel => {
+          farcasterChannels.push(channel);
+        });
+
+        paginationCursor = next.cursor;
+      } catch (error) {
+        console.log(
+          'Failed to fetch all Farcaster channels:',
+          getMessageForException(error) ?? 'unknown',
+        );
+        throw error;
+      }
+    } while (paginationCursor);
+
+    return farcasterChannels;
+  }
 }
 
 export { NeynarClient };