Spring Edge empowers businesses with fast, reliable, and intelligent messaging solutions. Trusted for delivering seamless customer communication through WhatsApp, SMS, and voice channels. Start conversations that matter the most.
Powering millions of messages daily for startups, enterprises, and government organisations. From OTP authentication to bulk marketing campaigns, SpringEdge delivers every message with speed and precision.
Send fast, reliable SMS alerts, OTPs, and promotional messages at scale. Reach your customers instantly with high delivery rates and smart routing.
Engage customers on their favorite messaging app with verified WhatsApp communication. Automate support, send updates, and personalize conversations securely.
Run rich, interactive campaigns with branded RCS messages featuring images, buttons, and actions. Upgrade your traditional SMS to a dynamic, app-like experience.
Deliver pre-recorded voice messages to thousands in seconds. Perfect for alerts, reminders, and multilingual outreach with real-time reporting.
Use dedicated virtual numbers for two-way messaging, missed call campaigns, and tracking. Enhance customer interaction while maintaining privacy and control.
Easily integrate messaging into your apps, CRMs, and workflows with powerful APIs. Extend functionality with chatbots, webhooks, analytics, and third-party integrations.
SpringEdge combines enterprise-grade infrastructure with developer-friendly APIs so you can integrate SMS, RCS, Voice, and WhatsApp into your applications in minutes. Our platform handles millions of messages daily with direct carrier connectivity, intelligent failover routing, and 99.9% uptime SLA — backed by a dedicated support team in Bangalore.
Read MoreSpring Edge's ingenious cross platform APIs are easy to integrate with any technology platform with industry standards to send SMS text or voice message.
We provide messaging and voice communications using multiple channels to bring the most reliable platform powered by InstantAlerts.
Enable business voice and SMS text communication with our highly scalable web interface. Send instant messages or bulk SMS using API or web-based platform.
Spring Edge strives to provide best in the industry services to clients. Our technical support engineers are available at any instant to address your SMS and voice related queries.
SpringEdge APIs are designed to be simple to use, powerful in production, and endlessly scalable. Integrate programmable SMS, voice, and WhatsApp messaging into any application with just a few lines of code.
Our RESTful APIs support cURL, PHP, Python, Ruby, Java, Go, and Node.js — with detailed documentation, SDKs, and sandbox testing to help you go live faster.
# Send SMS via cURL
curl http://web.springedge.com/api/web/send \
-F apikey=65ats54oxxxxxxxxxxxxxxxxxxxx \
-F sender=SEDEMO \
-F to=919020xxxxxx \
-F message=Hi, this is a test message \
-F format=json// Send SMS via PHP
$message = urlencode('Hi, this is a test message');
$sender = 'SEDEMO';
$apikey = '65ats54oxxxxxxxxxxxxxxxxxxxx';
$baseurl = 'http://web.springedge.com/api/web/send?apikey='.$apikey;
$url = $baseurl.'&sender='.$sender.'&to='.$mobileno.'&message='.$message;
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);# Send SMS via Python
import requests
message = 'Hi+this+is+a+test+message'
mobileno = '919035xxxxxx'
sender = 'SEDEMO'
apikey = '65ats54oxxxxxxxxxxxxxxxxxxxx'
baseurl = 'http://web.springedge.com/api/web/send/?apikey=' + apikey
url = baseurl + '&sender=' + sender + '&to=' + mobileno + '&message=' + message + '&format=json'
response = requests.get(url)
print('Response:', response, 'request.')# Send SMS via Ruby
require 'net/http'
message = URI::encode('Hi, this is a test message')
mobileno = '91903xxxxxxxx'
senderid = 'SEDEMO'
apikey = '65ats54oxxxxxxxxxxxxxxxxxxxx'
baseurl = 'http://web.springedge.com/api/web/send/?apikey=' + apikey
url = URI.parse(baseurl + '&sender=' + senderid + '&to=' + mobileno + '&message=' + message)
req = Net::HTTP::Get.new(url.to_s)
res = Net::HTTP.start(url.host, url.port) { |http|
http.request(req)
}
puts res.body// Send SMS via Java
message = URLEncoder.encode("Hi this is a test message", "UTF-8");
baseurl = "http://web.springedge.com/api/web/send/?apikey=65axxxxxxxxxxxxx";
URL url = new URL(baseurl + "&sender=SEDEMO&to=919035xxxxxx&message=Test+message");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
con.setDoOutput(true);
con.getOutputStream();
con.getInputStream();
BufferedReader rd;// Send SMS via Go
package main
import (
"net/http"
"net/url"
"strings"
)
func main() {
v := url.Values{}
v.Set("to", "919035xxxx")
v.Set("apikey", "API_KEY_HERE")
v.Set("sender", "SEDEMO")
v.Set("message", "Hello, this is a test sms")
rb := *strings.NewReader(v.Encode())
client := &http.Client{}
req, _ := http.NewRequest("POST", "http://web.springedge.com/api/web/send/", &rb)
resp, _ := client.Do(req)
}// Send SMS via Node.js
npm install springedge
var springedge = require('springedge');
var params = {
'sender': 'SEDEMO',
'apikey': 'API_KEY_HERE',
'to': ['9190xxxxxxxx'],
'message': 'Hi, this is a test message',
'format': 'json'
};
springedge.messages.send(params, 5000, function (err, response) {
if (err) {
return console.log(err);
}
console.log(response);
});