Fast and Secure OTP API for Developers
Easily integrate our API for OTP generation, SMS verification, and authentication.
Bulk SMS Pricing ➜
Starting at ₹0.11
WhatsApp Pricing ➜
Starting at ₹999
RCS Pricing ➜
Starting at ₹0.18
Trusted by 2000+ Businesses
OTP API Integration
Businesses are constantly looking to strengthen connections with partners and audiences.
In a competitive market, the need to perform better is crucial. Achieve excellence with Mtalkz's SMS OTP API for Developers. Tailored for diverse industries, easily connect with customers and partners, ensuring time-sensitive authentication OTPs and messages!
User Authentication
Enhance user authentication with our OTP authentication API. Deliver time-sensitive, expiring codes via SMS, email, or voice to boost login security and access control.
Transaction Verification
Enhance security for financial transactions, password changes, and critical actions with OTPs sent to users. Our OTP verification API verifies these actions, ensuring secure authorization and preventing unauthorized access.
Two-Factor Authentication (2FA)
Implement two-factor authentication by combining OTPs with traditional passwords. Users are required to enter a one-time password (OTP) sent via SMS or email, significantly enhancing security for account access.
Password Reset
Enable secure password resets by sending OTPs to registered mobile numbers or email addresses, ensuring that only authorized users can regain access to their accounts.
Mtalkz OTP API for Developers
Send withdrawal and deposit alerts to customers over SMS, WhatsApp and emails. Also update about new govt. rules and offering for other facilities provided by the banks and financial institutions using Mtalkz Bulk SMS and WhatsApp Business API.
Use Mtalkz SMS and Missed Call services to let customers seamlessly check their balance and transactions while authenticating through SMS and missed calls.
Customers can get the branch location or customer serivce point (CSP) – address and Google maps link for branch or CSP as well as ATM’s while typing their area code over WhatsApp or SMS while you integrate Mtalkz APIs for Banking and Financial services.
Integrate Mtalkz SMS and WhatsApp API for banking and Financial services to send Automated reminder through SMS and WhatsApp for EMI dues and other deposits with an Instant Payment link.
SMS and Voice blasts can be sent to out strong database informing the target audience about important offers, bank loans, festive offers using Mtalkz Voice for Banking and Financial Services
Let customers transact seamlessly using mobile banking , keep them secured via 2nd factor authentication through SMS and OTP generated and delivered without any delay.
Why Choose Mtalkz?
One-Stop Shop
Explore all communication solutions under one umbrella- from Bulk SMS, WhatsApp API and IVR Solutions to RCS , Email Marketing and more.
Consultancy- Based Approach
Connect with Mtalkz and get proper guidance from our experts to exceed your business goals.
24 X 7 Tech Support
Get 24 x 7 technical support. Our expert team follows strict SLAs, ensuring world-class guidance whenever you need it.
Fast Onboarding Process
Experience fast onboarding & faster DLT approvals. This eases the process of setting up your marketing campaigns.
How to Integrate Our OTP API in Simple Steps
01
Sign Up for an Account Start by creating an account with our OTP API service. Complete the registration process and verify your email address to gain access to your account dashboard.
02
Obtain Your API Key Once your account is activated, log in to your dashboard to retrieve your unique API key. This key will be used to authenticate your requests and ensure secure communication with our OTP service.
03
Choose Your Integration Method Select the preferred method for integration based on your application’s needs. Our API can be seamlessly integrated with your existing systems through RESTful API calls, SDKs, or by using our pre-built libraries for popular programming languages.
04
Implement the OTP Verification Logic Utilize the provided API documentation to implement the OTP verification logic in your application. Configure the necessary endpoints for sending OTPs and verifying user input.
05
Send OTPs via SMS, Email, or Voice Depending on your use case, use the API to send OTPs to users through SMS, email, or voice calls. Ensure that your application collects the necessary user contact information securely.
06
Verify OTP Input Once users receive the OTP, they will enter it into your application. Use the API to validate the submitted OTP against the one sent to the user. Implement logic to handle incorrect entries and prompt users accordingly.
07
Monitor and Analyze Access your dashboard to monitor OTP usage and analyze success rates. Use the analytics to optimize the user experience and enhance your security protocols.
08
Maintain Compliance and Security Regularly update your integration to comply with the latest security standards and practices. Utilize our support resources for any troubleshooting or optimization assistance.
SMS OTP Generation and Verification APIs by Mtalkz
Simply copy, customise and use
CURL Generation
curl --location 'https://msg.mtalkz.com//V2/http-api-sms.php' \
--header 'Content-Type: application/json' \
--data '{
"apikey": "5XgHXxxrjKXXxNXxu",
"senderid": "MTALKZ",
"number": "84XX76XXX5",
"message": "{OTP} is your OTP for XXX System. Please use it before XXX Team",
"format": "json",
"digit":"6",
"otptimeout":"120"
}'
CURL Verification
curl --location 'http://msg.mtalkz.com/V2/http-verifysms-api.php' \
--header 'Content-Type: application/json' \
--data '{
"apikey": "dXXRYXxxo4sxxXXex",
"sessionid": "txxs-XzX1-xxx2-Xixy-ZXsX",
"otp": "4XX6X7",
"format": "json"
}'
PHP CURL Generation
<?php $curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://msg.mtalkz.com//V2/http-api-sms.php',
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 =>'{
"apikey": "5XgHXxxrjKXXxNXxu",
"senderid": "MTALKZ",
"number": "84XX76XXX5",
"message": "{OTP} is your OTP for XXX System. Please use it before XXX Team",
"format": "json",
"digit":"6",
"otptimeout":"120"
}',
CURLOPT_HTTPHEADER => array(
'Content-Type: application/json',
),
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;
PHP CURL Verification
<?php $curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'http://msg.mtalkz.com/V2/http-verifysms-api.php',
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 =>'{
"apikey": "dXXRYXxxo4sxxXXex",
"sessionid": "txxs-XzX1-xxx2-Xixy-ZXsX",
"otp": "4XX6X7",
"format": "json"
}',
CURLOPT_HTTPHEADER => array(
'Content-Type: application/json',
),
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;
NodeJS Request Generation
var request = require('request');
var options = {
'method': 'POST',
'url': 'https://msg.mtalkz.com//V2/http-api-sms.php',
'headers': {
'Content-Type': 'application/json',
},
body: JSON.stringify({
"apikey": "5XgHXxxrjKXXxNXxu",
"senderid": "MTALKZ",
"number": "84XX76XXX5",
"message": "{OTP} is your OTP for XXX System. Please use it before XXX Team",
"format": "json",
"digit": "6",
"otptimeout": "120"
})
};
request(options, function (error, response) {
if (error) throw new Error(error);
console.log(response.body);
});
NodeJS Request Verification
var request = require('request');
var options = {
'method': 'POST',
'url': 'http://msg.mtalkz.com/V2/http-verifysms-api.php',
'headers': {
'Content-Type': 'application/json',
},
body: JSON.stringify({
"apikey": "dXXRYXxxo4sxxXXex",
"sessionid": "txxs-XzX1-xxx2-Xixy-ZXsX",
"otp": "4XX6X7",
"format": "json"
})
};
request(options, function (error, response) {
if (error) throw new Error(error);
console.log(response.body);
});
Python Request Generation
import requests
import json
url = "https://msg.mtalkz.com//V2/http-api-sms.php"
payload = json.dumps({
"apikey": "5XgHXxxrjKXXxNXxu",
"senderid": "MTALKZ",
"number": "84XX76XXX5",
"message": "{OTP} is your OTP for XXX System. Please use it before XXX Team",
"format": "json",
"digit": "6",
"otptimeout": "120"
})
headers = {
'Content-Type': 'application/json',
}
response = requests.request("POST", url, headers=headers, data=payload)
print(response.text)
Python Request Verification
import requests
import json
url = "http://msg.mtalkz.com/V2/http-verifysms-api.php"
payload = json.dumps({
"apikey": "dXXRYXxxo4sxxXXex",
"sessionid": "txxs-XzX1-xxx2-Xixy-ZXsX",
"otp": "4XX6X7",
"format": "json"
})
headers = {
'Content-Type': 'application/json',
}
response = requests.request("POST", url, headers=headers, data=payload)
print(response.text)
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Affordable & Flexible Pricing Plans for OTP API for developers
Free Tier
Start with our free OTP API plan to test and integrate our service with zero upfront costs. Enjoy access to our free mobile OTP service, allowing you to explore the features and functionalities of our OTP solution. You can also leverage our free OTP generator API to streamline your verification processes without any financial commitment.
Paid Plans
Scale your OTP verification needs with our affordable and scalable paid plans. Tailored to suit businesses of all sizes, our paid plans offer enhanced features, increased limits, and premium support to ensure you can grow confidently while maintaining secure user authentication.
OTP API FOR DEVELOPERS – FAQs
What is Mtalkz OTP API?
A Mtalkz OTP API, or One-Time Password API, is a type of API that enables developers to add two-factor authentication (2FA) to their applications. An OTP API generates one-time passwords that can be sent to users via SMS or email, and users must enter the correct OTP in order to gain access to the protected resource.
Can I use Web OTP API?
Yes, you can use a Web OTP API to add 2FA to your web applications. A Web OTP API can be integrated with your web application to enable the automatic verification of OTPs entered by users.
How does the Mtalkz OTP SMS API work?
The Mtalkz OTP SMS API works by allowing developers to make API calls to generate and send OTPs to users via SMS. When a user tries to access a protected resource, the API can be used to verify the OTP entered by the user. If the OTP is correct, the API returns a success response, and the user is granted access to the protected resource. If the OTP is incorrect, the API returns an error response, and the user must enter a new OTP.
How do I integrate the Mtalkz OTP SMS API into my application?
To integrate the Mtalkz OTP SMS API into your application, you would need to make API calls to the API from your application in order to generate and send OTPs, and to verify OTPs entered by users. You would also need to add a user interface to your application that allows users to enter OTPs.
Can I use the Mtalkz OTP SMS API for any type of application?
Yes, the Mtalkz OTP SMS API can be used for any type of application that requires two-factor authentication, including web applications, mobile applications, and desktop applications.
How can I use OTP for Indian mobile numbers?
Mtalkz OTP API supports OTP delivery to Indian mobile numbers for user authentication, including OTPs via SMS, email, or WhatsApp. This ensures a seamless user verification experience for businesses operating in India.
How do I verify OTP sent through SMS?
Once the OTP is sent via SMS, the user will input the received OTP into your app or website. Using our OTP API, you can validate the OTP to ensure it’s correct and within the expiration time.
What is SMS OTP verification?
SMS OTP verification is the process of sending a one-time password through an SMS message to users to verify their identity. This is a secure method widely used for login, password recovery, and transaction authorization.
Can I integrate OTP for mobile number verification on my website?
Yes, with Mtalkz OTP API, you can easily integrate mobile OTP verification for user registration, login, and transaction processes on your website.
What is the difference between OTP and two-factor authentication (2FA)?
OTP is a single-use password sent to a user for verification, while two-factor authentication (2FA) combines OTP with something the user knows (like a password), adding an extra layer of security.
How can I send OTP in bulk for user verification?
Using Mtalkz’s bulk OTP service, businesses can send OTPs in bulk for user verification, password recovery, or transaction approvals, streamlining the process for large-scale user bases.
What is the OTP app and how does it work?
An OTP app generates one-time passwords for user authentication. Unlike SMS-based OTPs, these apps use time-based algorithms to generate secure codes, adding an additional layer of protection for users.
How do I handle OTP expiration and retry attempts?
The Mtalkz OTP API allows you to set an expiration time for OTPs. If the OTP is not used within the given time, users will need to request a new OTP, ensuring that security is not compromised.
What are the benefits of using OTP verification for financial transactions?
OTP verification ensures that transactions, such as bank transfers, password resets, or account updates, are secure and authorized by the correct user, reducing the risk of fraud.
Can I buy OTP for temporary use?
Yes, Mtalkz offers temporary OTP services that can be used for one-time verification or short-term access control, ideal for quick, time-sensitive actions.
How do I resolve issues with OTP delivery or delays?
If OTPs are not delivered or experience delays, contact our 24×7 technical support team. We ensure reliable OTP delivery through multiple channels and troubleshoot any issues promptly.
How do I integrate OTP for banking and financial services?
Mtalkz OTP API can be seamlessly integrated into banking and financial applications, enabling secure user authentication, transaction verification, and account management through OTP sent via SMS, email, or WhatsApp.
