Inbox placement that works
99%+ deliverability through direct ISP partnerships, dedicated IPs, and advanced authentication (SPF, DKIM, DMARC).






Send transactional emails and marketing campaigns with 99%+ deliverability. Direct ISP relationships, dedicated IPs, and enterprise infrastructure - integrated in 15 minutes.
99%+ deliverability through direct ISP partnerships, dedicated IPs, and advanced authentication (SPF, DKIM, DMARC).

Combine email with SMS, WhatsApp, and Voice. One integration, one dashboard, one support team.

From thousands to millions daily. Real-time tracking, detailed analytics, webhook notifications included.

SDKs in 8+ languages, comprehensive documentation, and copy-paste code samples. Start sending in 15 minutes.


Build and send emails your way
Template management with dynamic personalization
Scheduled sending and batch processing
HTML/plain text formatting
List management and segmentation
99%+Inbox placement rate
< 1 secAverage delivery time
99.96%Platform uptime
15 minAverage integration time
Send order confirmations, password resets, and account notifications with sub-second delivery.

Easily integrate Email capabilities into your apps with CEQUENS Email API. Our developer-friendly documentation and RESTful API ensure a seamless integration process. Empower your applications with instant global reach, two-way messaging, and robust analytics. Elevate user engagement and communication with CEQUENS Email API today.
Explore Developer Documentation1const options = {
2 method: 'POST',
3 headers: {accept: 'application/json', 'content-type': 'application/json'},
4 body: JSON.stringify({senderName: 'Cequens', messageType: 'text', shortURL: false})
5};
6
7fetch('https://apis.cequens.com/sms/v1/messages', options)
8 .then(response => response.json())
9 .then(response => console.log(response))
10 .catch(err => console.error(err));
11Why manage multiple vendors? Combine Email, SMS, WhatsApp, Voice, and AI chatbots through one integration.
Single integration for email, SMS, WhatsApp, Voice, and chatbots. Track every interaction across all channels in one unified dashboard.
24/7 technical support across your entire communication stack. No vendor finger-pointing - just fast, knowledgeable assistance.
Consolidated billing with volume discounts across all channels. Simpler procurement, clearer budgeting, better pricing.
Create your account and get instant API credentials.
Use our SDKs and documentation to integrate in minutes.
Deploy to production with enterprise support backing you.

“ Through CEQUENS’s solutions we were able to engage with our customers across their channel of preference, providing them with a convenient and reliable suite of solutions to deal with queries, pricing, delivery, and complaints. We look forward to working on more marketing strategies with their solutions. ”


“ As a communication-driven team in Decathlon, our mission is to spread our message to communities. By utilizing CEQUENS's SMS API solutions, we were able to connect with existing customers and onboard new customers rapidly and efficiently, inviting them to be part of the Decathlon experience with one click. ”


“ We are tech-based startup in the food industry, and are always looking for partnerships that can provide us with the needed agility, dependability, and quality of service that helps us grow in an extremely competitive and demanding market. Working with CEQUENS has been super fulfilling and rewarding for us. ”


Security is no longer a backend feature—it’s the product. Discover how seamless, reliable authentication builds trust and drives ecommerce performance.

A two-second delay in OTP delivery can make or break the customer journey. Learn how fast, reliable authentication directly impacts conversion, trust, and retention.

Amir Hassan shares how Elsewedy Electric built a trusted digital storefront by leveraging CEQUENS SMS and WhatsApp APIs to enhance ecommerce communication, customer engagement, and operational efficiency.
Discover FAQs for Email API: Get answers on services, features, pricing, and more. Our FAQ section clarifies common queries. For extra help, contact our support team.