SMS marketing platform for mass business text messaging
Run promotions, reminders, and 2-way conversations from one place. Mass text with a simple web app. Track clicks and replies, then grow what works.
Add your brand voice, set clear goals, and reach people where they pay attention.
Reach customers faster with personalized marketing.
*No credit card required
+1,000 BUSINESSES USE SMS.to FOR THEIR needs
Why text message marketing works
Low setup effort
You can start with a single list and a simple template. Improve over time with tags, automations, and reports.
Your message is seen fast
Texts land in the native inbox, so customers see them quickly. You can follow up within minutes and keep conversations moving..
High reach for urgent updates
Great for time-sensitive alerts, delivery changes, and store events. When timing matters, SMS gets through without relying on extra apps.
Works on every device
From basic phones to smartphones, messages show the same. There is no extra install, so more of your list is reachable.
Easy to measure
Use short links and reports to see who clicked and who replied. Compare segments and times to find the sweet spot for your audience.
Short and personal
Plain text feels direct. Add names and order details to lift response. Keep it helpful, not pushy, and people will reply.
What you can do with SMS.to
Mass text service that scales
Upload contacts or connect your CRM. Segment by tags. Send offers, alerts, and announcements at the right time. Add short links and review campaign reports to see who clicked and who replied. Schedule sends by time zone and use quiet hours to keep it friendly.
Automation and scheduling that save time
Line up reminders, follow-ups, and win-back messages. Schedule sends for the right moment and repeat what works. Your app can call the SMS API to trigger messages when an order, booking, or status changes. All timing stays under your control.
Personalisation that converts
Write texts for flash sales, appointment reminders, delivery updates, NPS requests, and event RSVPs. Add first name, order ID, or date to lift click-through. Keep offers short, add a clear action, and include a helpful link.
Developer-friendly sms texting service
Send and receive with a clean REST API. Use webhooks for delivery receipts and inbound replies. Secure API keys by project. Keep logs for testing, and move to production with the same endpoints. Use the examples on this page to get started in minutes. See docs for more options. (If you need SMPP or advanced routing, tell us your use case and we will confirm the best path.)
2-way business SMS that keeps conversations moving
Engage customers with quick replies for questions, surveys, and feedback. Use two-way text message for business to close the loop after alerts and reminders.
Mass text service that scales
Upload contacts or connect your CRM. Segment by tags. Send offers, alerts, and announcements at the right time. Add short links and review campaign reports to see who clicked and who replied. Schedule sends by time zone and use quiet hours to keep it friendly.
Analytics and link tracking that guide spend
See delivery, clicks, replies, and opt-outs per campaign. Compare segments. Export results and send data to your BI tools. Spend where it pays back. Use reports to repeat top performers and pause low-impact sends.
Improve response times and customer trust
More revenue from the same audience
Announce limited-time offers by segment. Track clicks and orders to prove ROI. Reuse winning templates and send at the best times for each group.
Fewer no-shows and missed calls
Send friendly reminders with a reschedule link. Reduce support load. Add a follow-up message only when there is no reply, so you stay respectful.
Faster support replies
Route common questions to a shared inbox. Close conversations in minutes. Tag tricky issues so your team can learn and improve.
About sender IDs and number rules:
In most countries you can use a sender ID, but many require registration or pre-approval for A2P traffic, including 10DLC in the US. If a sender is not registered or does not meet local rules, delivery and throughput may be reduced or blocked. We will guide you on the best setup for each market.
See it in action
Import your contacts or paste a list.
Personalise the text and add a short link.
Schedule the send and track clicks and replies in real time.
Check results and improve your next campaign.
Pricing that's predictable as you grow
Get off the ground for no cost. Afterwards, pay only for what you send.
View per-country rates and volume discounts. Top up when you need to and keep full control of your costs.(If you prefer monthly bundles, ask sales for current options.)
Need rate limit or retry guidance? Tell us your expected concurrency and region mix.
We will suggest safe defaults.
Compliance made simple
- Get consent in a clear, recorded way.
- Include easy opt-out keywords like STOP.
- Set quiet hours and sender names that match your brand.
- Keep data under GDPR-friendly controls.
- Label opt-in sources so you know where each contact joined.
- Store basic audit trails so you can answer compliance questions quickly. We provide practical guidance and sample text so you launch with confidence.
(If you need help with local rules or 10DLC in the US, we will point you to the right setup steps.)
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. *
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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FAQ
Business text messaging is how companies send and receive SMS with customers at scale. It covers campaigns, reminders, and 2-way support. It works well for updates that need quick attention.
Yes. You can invite replies after a broadcast. Replies can be delivered to your account and to your API via webhooks, so your team can route or store them in your own system. Availability depends on your country and sender type, and we will confirm the right setup for you.
You pay per message. Rates vary by country. Volume discounts are available. See the pricing page for details, or ask sales to estimate costs for your monthly volume.
Yes. Send messages, receive replies, and get delivery receipts with webhooks. We provide clear examples and a fast start guide so you can integrate in a short sprint.
Collect consent before sending. Include STOP to opt out. We provide simple defaults so you stay compliant, and we can share best-practice copy for your forms.
Yes. You can add WhatsApp, Viber, or Telegram if needed. Availability may vary by region. We will confirm during onboarding and help you plan the right mix.