> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://beta-docs.payabli.com/api-reference/chargebacks/add-response-to-chargeback-or-return/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://beta-docs.payabli.com/_mcp/server.

# Add response to dispute

POST https://api-sandbox.payabli.com/api/ChargeBacks/response/{Id}
Content-Type: application/json

Add a response to a chargeback or ACH return.

Reference: https://beta-docs.payabli.com/api-reference/chargebacks/add-response-to-chargeback-or-return

## Authentication

- `requestToken` header (required) — API Key authentication via header

## Servers

- `https://api-sandbox.payabli.com/api` (Sandbox, default)
- `https://api.payabli.com/api` (Production)

## Request

### Path parameters

- `Id` (long, required) — ID of chargeback or return record

### Headers

- `idempotencyKey` (string, optional) — A unique ID you can include to prevent duplicating objects or transactions if a request is sent more than once. This key is not generated in Payabli, you must generate it yourself.

### Body (application/json)

This endpoint expects an object.

- `attachments` (list of FileContent, optional) — Array of attached files to response.
- `contactEmail` (string, optional) — Email of response submitter.
- `contactName` (string, optional) — Name of response submitter
- `notes` (string, optional) — Response notes

## Response

### 200

Success

- `isSuccess` (boolean, optional) — Boolean indicating whether the operation was successful. A `true` value indicates success. A `false` value indicates failure.
- `responseData` (integer, optional) — If `isSuccess` = true, this contains the chargeback identifier. If `isSuccess` = false, this contains the reason for the error.
- `responseText` (string, optional) — Response text for operation: 'Success' or 'Declined'.

## Errors

### 400 Bad Request Error

Bad request/ invalid data

- `any`

### 401 Unauthorized Error

Unauthorized request.

- `any`

### 400 Bad Request Error

Bad request/ invalid data

- `any`

### 401 Unauthorized Error

Unauthorized request.

- `any`

### 500 Internal Server Error

Internal API Error

- `any`

### 503 Service Unavailable Error

Database connection error

- `isSuccess` (boolean, optional) — Boolean indicating whether the operation was successful. A `true` value indicates success. A `false` value indicates failure.
- `responseData` (map from string to any, optional) — The object containing the response data.
- `responseText` (string, optional) — Response text for operation: 'Success' or 'Declined'.

## Types

### FileContent

Contains details about a file. See See [fileObject Object Model](/api-reference/schemas/filecontent) for a complete reference. Max upload size is 30 MB.

- `fContent` (string, optional) — Content of file, Base64-encoded Ignored if furl is specified. Max upload size is 30 MB.
- `filename` (string, optional) — The name of the attached file.
- `ftype` (enum, optional) — The MIME type of the file (if content is provided)
  - Allowed values: `pdf`, `doc`, `docx`, `jpg`, `jpeg`, `png`, `gif`, `txt`
- `furl` (string, optional) — Optional url provided to show or download the file remotely

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "isSuccess": true,
  "responseData": 126,
  "responseText": "Success"
}
```

**SDK Code**

```python General success response example for chargebacks.
import requests

url = "https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000"

payload = {}
headers = {
    "idempotencyKey": "6B29FC40-CA47-1067-B31D-00DD010662DA",
    "requestToken": "<apiKey>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript General success response example for chargebacks.
const url = 'https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000';
const options = {
  method: 'POST',
  headers: {
    idempotencyKey: '6B29FC40-CA47-1067-B31D-00DD010662DA',
    requestToken: '<apiKey>',
    'Content-Type': 'application/json'
  },
  body: '{}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go General success response example for chargebacks.
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000"

	payload := strings.NewReader("{}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("idempotencyKey", "6B29FC40-CA47-1067-B31D-00DD010662DA")
	req.Header.Add("requestToken", "<apiKey>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby General success response example for chargebacks.
require 'uri'
require 'net/http'

url = URI("https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["idempotencyKey"] = '6B29FC40-CA47-1067-B31D-00DD010662DA'
request["requestToken"] = '<apiKey>'
request["Content-Type"] = 'application/json'
request.body = "{}"

response = http.request(request)
puts response.read_body
```

```java General success response example for chargebacks.
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000")
  .header("idempotencyKey", "6B29FC40-CA47-1067-B31D-00DD010662DA")
  .header("requestToken", "<apiKey>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

```php General success response example for chargebacks.
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000', [
  'body' => '{}',
  'headers' => [
    'Content-Type' => 'application/json',
    'idempotencyKey' => '6B29FC40-CA47-1067-B31D-00DD010662DA',
    'requestToken' => '<apiKey>',
  ],
]);

echo $response->getBody();
```

```csharp General success response example for chargebacks.
using RestSharp;

var client = new RestClient("https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000");
var request = new RestRequest(Method.POST);
request.AddHeader("idempotencyKey", "6B29FC40-CA47-1067-B31D-00DD010662DA");
request.AddHeader("requestToken", "<apiKey>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift General success response example for chargebacks.
import Foundation

let headers = [
  "idempotencyKey": "6B29FC40-CA47-1067-B31D-00DD010662DA",
  "requestToken": "<apiKey>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api-sandbox.payabli.com/api/ChargeBacks/response/1000000")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

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