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Use #1 SMS platform to send messages globally.

Send bulk SMS to the large audience and see the successful engagements.
SMS platform to send messages globally.
Send SMS Instantly Automated Messages Easy SMS API Integration Instant Message Delivery
Transactional SMS service Promotional SMS service Secure OTP service Real Time Report
Bulk sms service and easy-to-use authentication solutions for businesses and developers. It allows you to easily integrate SMS API for features such as automated bulk SMS, two-factor authentication, passwordless login, and social login into your applications, without having to build these features from scratch. Authkey.io supports a variety of programming languages and frameworks, making it a flexible SMS solution for developers. It provides robust security features to ensure that user data is protected.

Promotional service, Transactional service and OTP SMS

#1 bulk SMS services in India, Bulk SMS Gateway offers high-quality Promotional SMS and Transactional SMS.

Promotional SMS Transactional SMS Secure SMS OTP
Sending promotional bulk SMS messages
to your target audience can be an
effective way to market your brand.		Your software can send an automated
SMS on occurrence of any event,
such as billing, payments, appointment, alert etc.		You can ensure the security by
using one-time passwords for logins,
resets, and new registrations.
Promotional SMS

Easy-to-use SMS platform with comprehensive features

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Global Reach

Instantly send SMS to millions anywhere globally. Easily send your campaign or schedule for later in regional language.

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Track Reports

Don’t guess for message delivery. Get real time track reports for each number a campaign hits.

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Ways to Send

SMS Platform gives you many ways to trigger SMS as an online panel, API integrations, excel plugins and more.

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Quick Integration

We provide an easy-to-integrate API as well as SMS, Voice, and Email functionality with one API connection.

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High Returns

Customers take more actions on available CTA than any other marketing channel. It has a high conversion rate.

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At Low Pricing

Sending bulk SMS campaigns engage a large audience as well as target market at low price

Authkey: One Stop Solutions

SMS, Voice, Email & Whatsapp.

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Messaging Solution

Start a quick SMS campaign, transactional messaging or authentication one-time-password. Know More.

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Voice Solution

Broadcast your marketing campaign through phone calls. You can use the API integration to channelise through TTS. Know More.

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Email Solutions

Develop an outstanding email program utilizing the Email API, trusted by leading brands on a large scale. Know More.

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WhatsApp Solution

Create your amazing chatbots with auto response with trusted whatsapp business API solution. Know more

Our SMS pricing plans are tailored to meet the business needs of sending a large number of messages.

Free Bulk SMS
Sign up today to test our SMS delivery rate.

Send Free SMSPricing Plans

What We Offer

Best Offer For Your Better Business

  • You can launch a Bulk SMS campaign with just a few clicks. Every Bulk SMS sent through our platform is delivered promptly.
  • You can get your account activated instantly, allowing you to buy and use Bulk SMS within a minute.
  • You have the freedom to choose both the timing(scheduler) and the number of SMS messages you wish to send. Unlimited validity empowers you to streamline your marketing campaigns.
  • Our Bulk SMS services are fully automated through SMS API integration, ensuring availability 24/7. If you encounter any issues in message delivery, we stand ready to provide support and ensure that your campaign runs flawlessly.
  • Our experienced developer team alway active to help. We provide industry-leading technical support.
  • Authkey.io offers a simple online SMS portal with a dedicated account for each user, making it easily accessible without any difficulty.
  • Authkey.io employs high-end operators and deliverable routes globally, ensuring SMS delivery is extremely fast, often within 5 seconds.
  • Our platform features a Number-list functionality, allowing you to save phone numbers and reuse them for future marketing campaigns.

Send SMS Anywhere Around the Globe

Bulk SMS Service Provider

Bulk SMS Service Provider in Delhi

Bulk SMS Service Provider in Gurgaon

Bulk SMS Service Provider in Mumbai

Bulk SMS Service Provider in Bangalore

Bulk SMS Service provider in Hyderabad

Bulk SMS Service Provider in Pune

Bulk SMS Service Provider in Noida

Bulk SMS Service Provider in Chennai

Delhi NCR | Mumbai | Goa | Chennai | Kolkata | Jaipur | Ranchi | Odisha | Lucknow Hyderabad | Arunachal Pradesh | Assam | Patna | Raipur | Bangalore | Gujarat | Chandigarh | Himachal Pradesh | Jammu & Kashmir | Kerala | Bhopal | Manipur | Meghalaya | Mizoram | Nagaland | Sikkim Tripura | Dehradun | Andaman and Nicobar Islands | Dadra and Nagar Haveli | Daman and Diu | Lakshadweep | Pondicherry

Send IlDO SMS: international Long distance Operator Bulk SMS

Frequently Asked Questions

Why Choose Authkey ?

We Scale with you

Regardless of one or million messages you send, our SMS infrastructure will ensure you that they deliver on time.

Pay as you Go

Utilization based pricing enables you to get discounted pricing from the beginning while only paying for what you use.

Enterprise-grade

We connect your messaging flow directly over 220+ carriers in 200+ countries for international delivery that is best in class.

Compliance & developers

We align you with the support and developer team. We ensure that your Authkey.io experience is smooth and successful.