Create a Whatsapp hosted signup

import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
});

const response = await client.whatsapp.hostedSignups.create({
  app_id: '123456789012345',
});

console.log(response.data);

import os
from telnyx import Telnyx

client = Telnyx(
    api_key=os.environ.get("TELNYX_API_KEY"),  # This is the default and can be omitted
)
response = client.whatsapp.hosted_signups.create(
    app_id="123456789012345",
)
print(response.data)

package main

import (
	"context"
	"fmt"

	"github.com/team-telnyx/telnyx-go"
	"github.com/team-telnyx/telnyx-go/option"
)

func main() {
	client := telnyx.NewClient(
		option.WithAPIKey("My API Key"),
	)
	hostedSignup, err := client.Whatsapp.HostedSignups.New(
		context.TODO(),
		telnyx.WhatsappHostedSignupNewParams{
			AppID: "123456789012345",
		},
	)
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", hostedSignup.Data)
}

package com.telnyx.sdk.example;

import com.telnyx.sdk.client.TelnyxClient;
import com.telnyx.sdk.client.okhttp.TelnyxOkHttpClient;
import com.telnyx.sdk.models.whatsapp.hostedSignups.HostedSignupCreateParams;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        TelnyxClient client = TelnyxOkHttpClient.fromEnv();

        HostedSignupCreateParams params = HostedSignupCreateParams.builder()
            .appId("123456789012345")
            .build();
        var response = client.whatsapp().hostedSignups().create(params);
    }
}

require "telnyx"

telnyx = Telnyx::Client.new(api_key: "My API Key")

response = telnyx.whatsapp.hosted_signups.create(app_id: "123456789012345")

puts(response)

<?php

require_once dirname(__DIR__) . '/vendor/autoload.php';

use Telnyx\Client;
use Telnyx\Core\Exceptions\APIException;

$client = new Client(apiKey: getenv('TELNYX_API_KEY') ?: 'My API Key');

try {
  $response = $client->whatsapp->hostedSignups->create(
    app_id: '123456789012345',
  );

  var_dump($response);
} catch (APIException $e) {
  echo $e->getMessage();
}

telnyx whatsapp:hosted-signups create \
  --api-key 'My API Key' \
  --app-id 123456789012345

curl --request POST \
  --url https://api.telnyx.com/v2/whatsapp/hosted_signups \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "app_id": "123456789012345",
  "signup_type": "coexistence"
}
'

{
  "data": {
    "id": "0192345a-7b8c-7d9e-0f12-3456789abcde",
    "record_type": "whatsapp_jwt",
    "app_id": "123456789012345",
    "created_at": "2026-07-08T12:00:00Z",
    "expires_at": "2026-07-09T12:00:00Z",
    "jwt": "eyJhbGciOiJSUzI1NiIs...",
    "url": "https://acct.fyi?token=eyJhbGciOiJSUzI1NiIs...",
    "solution_id": "987654321098765"
  }
}

{
  "errors": [
    {
      "code": "10015",
      "title": "Bad request",
      "detail": "expires_at must be at most 3 days in the future"
    }
  ]
}

{
  "errors": [
    {
      "code": "string",
      "title": "string",
      "detail": "string",
      "source": {
        "pointer": "/data/attributes/phone_number",
        "parameter": "string"
      }
    }
  ]
}