> ## Documentation Index
> Fetch the complete documentation index at: https://docs.neynar.com/llms.txt
> Use this file to discover all available pages before exploring further.

# fetchPopularCastsByUser

10 most popular casts

> **Group:** Feed APIs

Use this when you need: **10 most popular casts**.

## Usage

```ts theme={"system"}
import { NeynarAPIClient, Configuration } from "@neynar/nodejs-sdk";

const client = new NeynarAPIClient(
  new Configuration({ apiKey: "YOUR_NEYNAR_API_KEY" })
);

const res = await client.fetchPopularCastsByUser({
  fid: 123, // FID of user whose feed you want to create
  // viewerFid: 123, 
});
console.log(res);
```

## Parameters

| Parameter   | Type     | Required | Description                               |
| ----------- | -------- | :------: | ----------------------------------------- |
| `fid`       | `number` |     ✅    | FID of user whose feed you want to create |
| `viewerFid` | `number` |     ❌    | -                                         |

## Response

Returns a `RequestArgs` object.

## Error Handling

```ts theme={"system"}
try {
  const res = await client.fetchPopularCastsByUser({
    fid: 123
  });
  // use res
} catch (err) {
  // Axios/HTTP errors, invalid params, auth issues, etc.
  console.error(err);
}
```

## Related API Reference

📖 **API Reference:** [fetchPopularCastsByUser](/reference/fetch-popular-casts-by-user)

For detailed information about the HTTP endpoint, request/response schemas, and additional examples, see the complete API documentation.

## Tips

* Provide a **viewerFid** when supported to respect mutes/blocks and include `viewer_context`.
* Keep requests scoped (e.g., use `limit`) to improve latency.
* Cache results where sensible.


## Related topics

- [SDK v1 to v2 migration guide](/reference/neynar-nodejs-sdk-v1-to-v2-migration-guide.md)
- [fetchCastsForUser](/nodejs-sdk/feed-apis/fetchCastsForUser.md)
- [10 most popular casts](/reference/fetch-popular-casts-by-user.md)
- [Fetch trending feed](/reference/fetch-trending-feed.md)
- [Trending Feed on Farcaster - Neynar API](/docs/how-to-get-trending-casts-on-farcaster.md)