curl --request POST \
  --url https://api.withallo.com/v2/api/threads \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "entity_type": "CALL",
  "entity_id": "cll-abc123",
  "content": "Can someone call them back today? @[Jane Doe](usr-abc123)"
}
'

import requests

url = "https://api.withallo.com/v2/api/threads"

payload = {
    "entity_type": "CALL",
    "entity_id": "cll-abc123",
    "content": "Can someone call them back today? @[Jane Doe](usr-abc123)"
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    entity_type: 'CALL',
    entity_id: 'cll-abc123',
    content: 'Can someone call them back today? @[Jane Doe](usr-abc123)'
  })
};

fetch('https://api.withallo.com/v2/api/threads', 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://api.withallo.com/v2/api/threads",
  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([
    'entity_type' => 'CALL',
    'entity_id' => 'cll-abc123',
    'content' => 'Can someone call them back today? @[Jane Doe](usr-abc123)'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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://api.withallo.com/v2/api/threads"

	payload := strings.NewReader("{\n  \"entity_type\": \"CALL\",\n  \"entity_id\": \"cll-abc123\",\n  \"content\": \"Can someone call them back today? @[Jane Doe](usr-abc123)\"\n}")

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

	req.Header.Add("Authorization", "<api-key>")
	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://api.withallo.com/v2/api/threads")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"entity_type\": \"CALL\",\n  \"entity_id\": \"cll-abc123\",\n  \"content\": \"Can someone call them back today? @[Jane Doe](usr-abc123)\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.withallo.com/v2/api/threads")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"entity_type\": \"CALL\",\n  \"entity_id\": \"cll-abc123\",\n  \"content\": \"Can someone call them back today? @[Jane Doe](usr-abc123)\"\n}"

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

{
  "data": {
    "id": "cth-abc123",
    "entity_type": "CALL",
    "entity_id": "cll-abc123",
    "contact_number": "+14155551234",
    "resolved": false,
    "resolved_at": null,
    "resolved_by": null,
    "comment_count": 1,
    "created_at": "2026-07-13T10:00:00",
    "comments": [
      {
        "id": "thc-abc123",
        "content": "Can someone call them back today? @[Jane Doe](usr-abc123)",
        "user": {
          "id": "usr-def456",
          "name": "John Smith"
        },
        "mentions": [
          {
            "user_id": "usr-abc123",
            "name": "Jane Doe",
            "deleted": false
          }
        ],
        "created_at": "2026-07-13T10:00:00",
        "updated_at": "2026-07-13T10:00:00"
      }
    ]
  }
}

{
  "error": {
    "type": "<string>",
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "request_id": "<string>",
    "retry_after_seconds": 123
  }
}

{
  "error": {
    "type": "<string>",
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "request_id": "<string>",
    "retry_after_seconds": 123
  }
}

{
  "error": {
    "type": "<string>",
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "request_id": "<string>",
    "retry_after_seconds": 123
  }
}

{
  "error": {
    "type": "<string>",
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "request_id": "<string>",
    "retry_after_seconds": 123
  }
}

{
  "error": {
    "type": "<string>",
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "request_id": "<string>",
    "retry_after_seconds": 123
  }
}