---
title: "trace_filter"
description: "Returns traces matching block and address filters (Arbitrum Sepolia)"
url: "https://blockreq.com/docs/build/api-reference/arbitrum-sepolia/trace_filter/"
---

# trace_filter

**Network:** Arbitrum Sepolia · Testnet · Chain ID `421614` (`0x66eee`)

**Counts as 5 requests.** See [Request Counting](https://blockreq.com/docs/pricing/request-counting/index.md).

`trace_filter` returns trace entries that match a block range and optional address filters. It is a paid trace method, not available on Free, and can be expensive for broad historical ranges.

## Parameters

1. `Object` - Filter object:

| Field         | Type            | Description                  |
| ------------- | --------------- | ---------------------------- |
| `fromBlock`   | `QUANTITY\|TAG` | Start block.                 |
| `toBlock`     | `QUANTITY\|TAG` | End block.                   |
| `fromAddress` | `Array<DATA>`   | Optional sender addresses.   |
| `toAddress`   | `Array<DATA>`   | Optional receiver addresses. |
| `after`       | `QUANTITY`      | Optional pagination offset.  |
| `count`       | `QUANTITY`      | Optional page size.          |

## Request

```json
{
  "jsonrpc": "2.0",
  "method": "trace_filter",
  "params": [
    {
      "fromBlock": "0x1",
      "toBlock": "0x10",
      "count": "0x10"
    }
  ],
  "id": 1
}
```

## Code Examples

**cURL**

```bash
curl -X POST https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"trace_filter","params":[{"fromBlock":"0x1","toBlock":"0x10","count":"0x10"}],"id":1}'
```

**TypeScript**

```typescript
const response = await fetch("https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "jsonrpc": "2.0",
  "method": "trace_filter",
  "params": [
    {
      "fromBlock": "0x1",
      "toBlock": "0x10",
      "count": "0x10"
    }
  ],
  "id": 1
}),
});
const data = await response.json();
console.log(data.result);
```

**Python**

```python
import requests

response = requests.post(
    "https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public",
    json={
  "jsonrpc": "2.0",
  "method": "trace_filter",
  "params": [
    {
      "fromBlock": "0x1",
      "toBlock": "0x10",
      "count": "0x10"
    }
  ],
  "id": 1
}
)
print(response.json()["result"])
```

**Go**

```go
package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

func main() {
	payload := []byte(`{"jsonrpc":"2.0","method":"trace_filter","params":[{"fromBlock":"0x1","toBlock":"0x10","count":"0x10"}],"id":1}`)
	resp, err := http.Post(
		"https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public",
		"application/json",
		bytes.NewBuffer(payload),
	)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	body, _ := io.ReadAll(resp.Body)
	var result map[string]interface{}
	json.Unmarshal(body, &result)
	fmt.Println(result["result"])
}
```

**viem**

```typescript
import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public"),
});

const result = await client.request({
  method: "trace_filter",
  params: [{"fromBlock":"0x1","toBlock":"0x10","count":"0x10"}],
});
console.log(result);
```

**Foundry**

```bash
cast rpc --rpc-url https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public trace_filter {"fromBlock":"0x1","toBlock":"0x10","count":"0x10"}
```

**Hardhat**

```javascript
const { ethers } = require("hardhat");

async function main() {
  const provider = new ethers.JsonRpcProvider("https://arbitrum-sepolia-rpc.blockreq.com/v1/rpc/public");
  const result = await provider.send("trace_filter", [{"fromBlock":"0x1","toBlock":"0x10","count":"0x10"}]);
  console.log(result);
}

main();
```