curl --request POST \
  --url https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "reason": "<string>",
  "fileIds": [
    "<string>"
  ]
}
'

import requests

url = "https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond"

payload = {
    "reason": "<string>",
    "fileIds": ["<string>"]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({reason: '<string>', fileIds: ['<string>']})
};

fetch('https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'reason' => '<string>',
    'fileIds' => [
        '<string>'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond"

	payload := strings.NewReader("{\n  \"reason\": \"<string>\",\n  \"fileIds\": [\n    \"<string>\"\n  ]\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"reason\": \"<string>\",\n  \"fileIds\": [\n    \"<string>\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox-api.platform.chipper.ai/v1/disputes/{id}/respond")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"reason\": \"<string>\",\n  \"fileIds\": [\n    \"<string>\"\n  ]\n}"

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

{
  "dispute": {
    "id": "dsp_m8k2x5vq9pn3r7zt4wbc",
    "organizationId": "org_h4n7q2vm8kp3r9zt5wbx",
    "collectionId": "col_x7kd92mfn3qp8wz4t6vb",
    "amount": "250.00",
    "currency": "NGN",
    "category": "fraud",
    "status": "open",
    "statusMessage": "<string>",
    "evidence": {
      "action": "contest",
      "reason": "Goods delivered — signed proof attached",
      "fileIds": [
        "file_q7vei435zifs51ia0lqr"
      ]
    },
    "resolvedAt": "2023-11-07T05:31:56Z",
    "createdAt": "2026-08-01T09:12:44.000Z",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}

{
  "error": "bad_request",
  "message": "Can only respond to open disputes",
  "requestId": "req_q7vei435zifs51ia0lqr"
}

{
  "error": "unauthorized",
  "message": "Invalid API key",
  "requestId": "req_q7vei435zifs51ia0lqr"
}

{
  "error": "not_found",
  "message": "Dispute not found",
  "requestId": "req_q7vei435zifs51ia0lqr"
}