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

# Chain-Specific Report

> Get a credit report for a specific blockchain network

## Overview

Returns a credit report for a single blockchain network, useful when you only need data from a specific chain.

<Info>
  Use this endpoint for faster responses when you don't need cross-chain data.
</Info>

## Path Parameters

<ParamField path="address" type="string" required>
  Ethereum address or ENS name (e.g., `vitalik.eth` or `0x742d35Cc6634C0532925a3b844Bc9e7595f0Ab17`)
</ParamField>

<ParamField path="chain_id" type="integer" required>
  The chain ID to fetch data from (e.g., `1` for Ethereum mainnet)
</ParamField>

## Supported Chain IDs

| Network   | Chain ID |
| --------- | -------- |
| Ethereum  | 1        |
| Polygon   | 137      |
| Arbitrum  | 42161    |
| Optimism  | 10       |
| Base      | 8453     |
| Avalanche | 43114    |
| BNB Chain | 56       |
| Fantom    | 250      |
| zkSync    | 324      |
| Linea     | 59144    |

## Response

<ResponseField name="address" type="string">
  The resolved Ethereum address (checksummed)
</ResponseField>

<ResponseField name="chain_id" type="integer">
  The chain ID for this report
</ResponseField>

<ResponseField name="chain_name" type="string">
  Human-readable chain name
</ResponseField>

<ResponseField name="assets" type="object">
  Asset holdings on this chain
</ResponseField>

<ResponseField name="defi" type="object">
  DeFi positions on this chain
</ResponseField>

<ResponseField name="activity" type="object">
  Transaction activity on this chain
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X GET "https://api.credprotocol.com/api/v2/report/address/vitalik.eth/chain/1" \
    -H "Authorization: Bearer YOUR_API_KEY"
  ```

  ```javascript JavaScript theme={null}
  const response = await fetch('https://api.credprotocol.com/api/v2/report/address/vitalik.eth/chain/1', {
    headers: {
      'Authorization': 'Bearer YOUR_API_KEY'
    }
  });

  const report = await response.json();
  console.log(`Ethereum holdings: $${report.assets.total_value_usd}`);
  ```

  ```python Python theme={null}
  import requests

  response = requests.get(
      'https://api.credprotocol.com/api/v2/report/address/vitalik.eth/chain/1',
      headers={'Authorization': 'Bearer YOUR_API_KEY'}
  )

  report = response.json()
  print(f"Ethereum holdings: ${report['assets']['total_value_usd']}")
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
    "chain_id": 1,
    "chain_name": "Ethereum",
    "assets": {
      "total_value_usd": 100000000,
      "tokens": [
        {
          "symbol": "ETH",
          "name": "Ethereum",
          "balance": "50000.5",
          "value_usd": 100000000
        }
      ],
      "nfts": [
        {
          "name": "CryptoPunk #1234",
          "collection": "CryptoPunks"
        }
      ]
    },
    "defi": {
      "protocols": [
        {
          "name": "Aave",
          "supplied": 1000000,
          "borrowed": 0
        }
      ],
      "total_supplied": 1000000,
      "total_borrowed": 0
    },
    "activity": {
      "first_transaction": "2015-08-07T00:00:00Z",
      "total_transactions": 12000
    },
    "cached": false,
    "timestamp": "2024-01-15T10:30:00Z"
  }
  ```

  ```json 400 theme={null}
  {
    "detail": "Invalid chain ID. See documentation for supported chains."
  }
  ```
</ResponseExample>

## Performance

* **Response Time**: Typically 1-3 seconds (faster than full report)
* **Caching**: Results cached for 5 minutes per address/chain combination