SMS API for Seamless Integration

Integrate SMS functionality into your applications effortlessly with SMS.to's robust SMS API. Our SMS API provides you with the tools to send and receive SMS messages programmatically, making it easy to incorporate SMS communication into your existing systems. The SMS.to SMS API offers the following benefits:

Flexible: Our SMS API is designed to be adaptable, allowing you to integrate SMS capabilities into your preferred programming language and framework.
Reliable: Experience the reliability of our SMS delivery infrastructure, ensuring your messages reach their destination in a timely manner.
Scalable: Whether you need to send a few messages or millions, our SMS API can handle your volume needs, providing a scalable solution to meet your requirements.
Global: With our SMS API, you can reach users around the world in just minutes. Sign up for free, obtain your API key, and start leveraging the power of SMS communication in less than 5 minutes.

Read Docs Get The SDKs Check System's Status

SMS API Gateway Features

OTP SMS (One time Passwords) Secure your app with One Time Passwords for use in Banking, Financial, Healthcare, Enchanced Security Websites Notification SMS (OTT) Send instant SMS notifications for order confirmation, transactions, reminders, activity. Appointment Reminders Remind your customers of their appointments and reduce no shows. Integrate with your CRM or Calendar SMS Marketing & Newsletters Quickly send bulk SMS to a large number of recipient all over the world. Surveys & Feedback Requests Quickly engage with your customers through our 2-WAY SMS connectivity

SMStoAuth

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SMS API for Developers

Implement SMS notifications, OTP, reminders etc. into your workflow and build apps that send SMS with our redundant SSL SMS API. *

GET API KEY →

Read Docs Get The SDKs Check System's Status

cURL
PHP
Node.JS
Ruby
Python
Java
Go

curl --location 'https://api.sms.to/sms/send' \
--header 'Authorization: Bearer <api_key>' \
--header 'Content-Type: application/json' \
--data '{
    "message": "This is test and \n this is a new line",
    "to": "+35799999999999",
    "bypass_optout": true,
    "sender_id": "SMSto",
    "callback_url": "https://example.com/callback/handler"
}'

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://api.sms.to/sms/send',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS =>'{
    "message": "This is test and \\n this is a new line",
    "to": "+35799999999999",
    "bypass_optout": true,
    "sender_id": "SMSto",
    "callback_url": "https://example.com/callback/handler"
}',
  CURLOPT_HTTPHEADER => array(
    'Authorization: Bearer <api_key>',
    'Content-Type: application/json'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

var https = require('follow-redirects').https;
var fs = require('fs');

var options = {
  'method': 'POST',
  'hostname': 'api.sms.to',
  'path': '/sms/send',
  'headers': {
    'Authorization': 'Bearer <api_key>',
    'Content-Type': 'application/json'
  },
  'maxRedirects': 20
};

var req = https.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function (chunk) {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });

  res.on("error", function (error) {
    console.error(error);
  });
});

var postData = JSON.stringify({
  "message": "This is test and \n this is a new line",
  "to": "+35799999999999",
  "bypass_optout": true,
  "sender_id": "SMSto",
  "callback_url": "https://example.com/callback/handler"
});

req.write(postData);

req.end();

require "uri"
require "json"
require "net/http"

url = URI("https://api.sms.to/sms/send")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = "Bearer <api_key>"
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "message": "This is test and \n this is a new line",
  "to": "+35799999999999",
  "bypass_optout": true,
  "sender_id": "SMSto",
  "callback_url": "https://example.com/callback/handler"
})

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

import http.client
import json

conn = http.client.HTTPSConnection("api.sms.to")
payload = json.dumps({
  "message": "This is test and \n this is a new line",
  "to": "+35799999999999",
  "bypass_optout": True,
  "sender_id": "SMSto",
  "callback_url": "https://example.com/callback/handler"
})
headers = {
  'Authorization': 'Bearer <api_key>',
  'Content-Type': 'application/json'
}
conn.request("POST", "/sms/send", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\r\n    \"message\": \"This is test and \\n this is a new line\",\r\n    \"to\": \"+35799999999999\",\r\n    \"bypass_optout\": true,\r\n    \"sender_id\": \"SMSto\",\r\n    \"callback_url\": \"https://example.com/callback/handler\"\r\n}");
Request request = new Request.Builder()
  .url("https://api.sms.to/sms/send")
  .method("POST", body)
  .addHeader("Authorization", "Bearer <api_key>")
  .addHeader("Content-Type", "application/json")
  .build();
Response response = client.newCall(request).execute();

package main

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

func main() {

  url := "https://api.sms.to/sms/send"
  method := "POST"

  payload := strings.NewReader(`{`+"
"+`
    "message": "This is test and \n this is a new line",`+"
"+`
    "to": "+35799999999999",`+"
"+`
    "bypass_optout": true,`+"
"+`
    "sender_id": "SMSto",`+"
"+`
    "callback_url": "https://example.com/callback/handler"`+"
"+`
}`)

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)

  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("Authorization", "Bearer <api_key>")
  req.Header.Add("Content-Type", "application/json")

  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := ioutil.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}

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SMS API Afghanistan

SMS API Albania

SMS API Algeria

SMS API American Samoa

SMS API Andorra

SMS API Anguilla

SMS API Antarctica

SMS API Antigua And Barbuda

SMS API Argentina

SMS API Armenia

SMS API Australia

SMS API Austria

SMS API Azerbaijan

SMS API Bahamas

SMS API Bahrain

SMS API Bangladesh

SMS API Barbados

SMS API Belarus

SMS API Belgium

SMS API Bermuda

SMS API Bolivia

SMS API Bosnia And Herzegowina

SMS API Botswana

SMS API Bouvet Island (Norway)

SMS API British Indian Ocean Territory

SMS API Brunei Darussalam

SMS API Bulgaria

SMS API Burkina Faso

SMS API Burundi

SMS API Cambodia

SMS API Cameroon

SMS API Cape Verde

SMS API Caribbean Netherlands

SMS API Cayman Islands

SMS API Central African Republic

SMS API Christmas Island

SMS API Cocos (Keeling) Islands (Austrailia)

SMS API Colombia

SMS API Comoros

SMS API Congo, The Drc

SMS API Cook Islands

SMS API Costa Rica

SMS API Cote D'Ivoire

SMS API Croatia (Local Name: Hrvatska)

SMS API Curacao

SMS API Czech Republic

SMS API Denmark

SMS API Djibouti

SMS API Dominica

SMS API Dominican Republic

SMS API East Timor

SMS API Ecuador

SMS API El Salvador

SMS API Equatorial Guinea

SMS API Eritrea

SMS API Estonia

SMS API Ethiopia

SMS API Falkland Islands (Malvinas)

SMS API Faroe Islands

SMS API Finland

SMS API French Guiana

SMS API French Polynesia

SMS API French Southern Territories

SMS API Georgia

SMS API Germany

SMS API Gibraltar

SMS API Greenland

SMS API Grenada

SMS API Guadeloupe

SMS API Guatemala

SMS API Guinea-Bissau

SMS API Heard And Mc Donald Islands

SMS API Holy See (Vatican City State)

SMS API Honduras

SMS API Hong Kong

SMS API Hungary

SMS API Iceland

SMS API Indonesia

SMS API Iran (Islamic Republic Of)

SMS API Ireland

SMS API Jamaica

SMS API Kazakhstan

SMS API Kiribati

SMS API Korea, D.P.R.O.

SMS API Korea, Republic Of

SMS API Kyrgyzstan

SMS API Lebanon

SMS API Lesotho

SMS API Liberia

SMS API Libyan Arab Jamahiriya

SMS API Liechtenstein

SMS API Lithuania

SMS API Luxembourg

SMS API Macedonia

SMS API Madagascar

SMS API Malaysia

SMS API Maldives

SMS API Marshall Islands

SMS API Martinique

SMS API Mauritania

SMS API Mauritius

SMS API Mayotte

SMS API Micronesia, Federated States Of

SMS API Moldova, Republic Of

SMS API Mongolia

SMS API Montenegro

SMS API Montserrat

SMS API Morocco

SMS API Mozambique

SMS API Myanmar (Burma)

SMS API Namibia

SMS API Netherlands

SMS API Netherlands Antillen

SMS API New Caledonia

SMS API New Zealand

SMS API Nicaragua

SMS API Nigeria

SMS API Norfolk Island

SMS API Northern Mariana Islands

SMS API Pakistan

SMS API Palestinian Territory

SMS API Papua New Guinea

SMS API Paraguay

SMS API Philippines

SMS API Pitcairn

SMS API Portugal

SMS API Puerto Rico

SMS API Reunion

SMS API Romania

SMS API Russian Federation

SMS API Saint Kitts And Nevis

SMS API Saint Lucia

SMS API Saint Vincent And The Grenadines

SMS API San Marino

SMS API Sao Tome And Principe

SMS API Saudi Arabia

SMS API Senegal

SMS API Seychelles

SMS API Sierra Leone

SMS API Singapore

SMS API Sint Maarten

SMS API Slovakia (Slovak Republic)

SMS API Slovenia

SMS API Solomon Islands

SMS API Somalia

SMS API South Africa

SMS API South Georgia And South S.S.

SMS API South Sudan

SMS API Sri Lanka

SMS API St. Helena

SMS API St. Pierre And Miquelon

SMS API Suriname

SMS API Svalbard And Jan Mayen Islands

SMS API Swaziland

SMS API Switzerland

SMS API Tajikistan

SMS API Tanzania, United Republic Of

SMS API Thailand

SMS API Tokelau

SMS API Trinidad And Tobago

SMS API Tunisia

SMS API Turkmenistan

SMS API Turks And Caicos Islands

SMS API U.S. Minor Islands

SMS API Ukraine

SMS API United Arab Emirates

SMS API United Kingdom

SMS API United States

SMS API Uruguay

SMS API Uzbekistan

SMS API Vanuatu

SMS API Venezuela

SMS API Vietnam

SMS API Virgin Islands (British)

SMS API Virgin Islands (U.S.)

SMS API Wallis And Futuna Islands

SMS API Western Sahara

SMS API Zimbabwe

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