> ## 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.

# fetchCastMetrics

Metrics for casts

> **Group:** Metric APIs

Use this when you need: **Metrics for 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.fetchCastMetrics({
  q: "example", // Query string to search for casts
  // xNeynarExperimental: true, 
  // interval: "value", 
  // authorFid: 123, 
  // channelId: "example", 
});
console.log(res);
```

## Parameters

| Parameter             | Type                           | Required | Description                      |
| --------------------- | ------------------------------ | :------: | -------------------------------- |
| `q`                   | `string`                       |     ✅    | Query string to search for casts |
| `xNeynarExperimental` | `boolean`                      |     ❌    | -                                |
| `interval`            | `FetchCastMetricsIntervalEnum` |     ❌    | -                                |
| `authorFid`           | `number`                       |     ❌    | -                                |
| `channelId`           | `string`                       |     ❌    | -                                |

## Response

Returns a `RequestArgs` object.

## Error Handling

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

## Related API Reference

📖 **API Reference:** [fetchCastMetrics](/reference/fetch-cast-metrics)

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.