curl --request GET \
  --url https://collectwiseapi.com/text/messages \
  --header 'collectwise_key: <api-key>'

import requests

url = "https://collectwiseapi.com/text/messages"

headers = {"collectwise_key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {collectwise_key: '<api-key>'}};

fetch('https://collectwiseapi.com/text/messages', 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://collectwiseapi.com/text/messages",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "collectwise_key: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://collectwiseapi.com/text/messages"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("collectwise_key", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://collectwiseapi.com/text/messages")
  .header("collectwise_key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://collectwiseapi.com/text/messages")

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

request = Net::HTTP::Get.new(url)
request["collectwise_key"] = '<api-key>'

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

{
  "count": 2,
  "messages": [
    {
      "messageId": "4d1a0b7c-9e2f-4c31-8a77-2b6f0d1e5c44",
      "direction": "inbound",
      "status": "Delivered",
      "message": "when is my payment due",
      "debtorId": "your-reference-number",
      "destination": "+13313048434",
      "conversationId": "conv_087b83bb525d4fceaaa01a4234b6b012",
      "templateId": null,
      "messageType": "sms",
      "mediaUrls": null,
      "createdAt": "2026-08-17T12:00:00.000Z",
      "updatedAt": null
    },
    {
      "messageId": "1b1f0a9e-6f4e-4f4b-9a2e-1f2d3c4b5a69",
      "direction": "outbound",
      "status": "Delivered",
      "message": "Jane, this is Acme Recovery Group, a debt collector. Your balance is $430.10. Reply STOP to opt out.",
      "debtorId": "your-reference-number",
      "destination": "+13313048434",
      "conversationId": "conv_087b83bb525d4fceaaa01a4234b6b012",
      "templateId": 100,
      "messageType": "sms",
      "mediaUrls": null,
      "createdAt": "2026-08-17T11:58:02.000Z",
      "updatedAt": "2026-08-17T11:58:07.000Z"
    }
  ]
}

{
  "error": "Provide messageId, debtorId, destination or since"
}

{
  "error": "Texting is not enabled for this organization"
}

{
  "error": "Message not found"
}

{
  "error": "Too many requests"
}

{
  "error": "Internal server error"
}