WhatsApp Business API
Send and receive WhatsApp messages programmatically. Templates, media, two-way messaging, and delivery receipts.
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API Catalogue
Everything You Need, One Platform
From messaging to data pipelines — all accessible through a single unified API key.
SMS API
Transactional and promotional SMS across all Indian networks. DND handling, delivery reports, Unicode support.
Email API
Transactional email with open/click tracking, templates, attachments, and detailed analytics. Better than SMTP.
OTP Verification API
Phone number verification via OTP over SMS or WhatsApp. Retry logic, expiry handling, and fraud protection built-in.
Data & Analytics API
Real-time data streams, batch exports, and enrichment pipelines. JSON endpoints with filtering and webhooks.
REST Utility APIs
IP geolocation, currency, weather, pin code lookup and 20+ utility endpoints. OpenAPI 3.0 compliant.
By Industry
Built for Every Sector
Whether you're a fintech startup or a logistics giant, we have the right API stack for you.
Fintech & Banking
KYC, OTP, payment notifications, transaction alerts.
E-Commerce
Order updates, delivery notifications, support bots.
Startups
Free tier to start. Pay-as-you-go. No runway-burning bills.
Logistics & Transport
Real-time tracking alerts, driver communication APIs.
Healthtech
Appointment reminders, prescription alerts, patient OTPs.
Enterprise
Dedicated SLAs, custom rate limits, compliance support.
Edtech
Student notifications, attendance alerts, exam reminders.
SaaS Platforms
Onboarding flows, billing alerts, feature announcements.
Why APIExpress
Developer-First.
India-Built.
Radically Affordable.
We built the API platform we always wanted — no surprises, no lock-in, no enterprise pricing just to send a text message.
Lowest prices, guaranteed
We benchmark against competitors monthly. Find cheaper? We match it.
One key, every API
A single API key unlocks the entire platform. One dashboard, one invoice.
Docs written by developers
Interactive playground, code examples in 8 languages, guides that get out of your way.
India-first infrastructure
Hosted in Indian data centres. Sub-80ms latency. PDPA compliant.
APIExpress vs. market average
💸 Price per SMS
3× cheaper
⚡ Avg. latency
<80ms
🕐 Time to first call
<5 min
📞 Support response
<4 hrs
✅ Uptime SLA
99.9%
Testimonials
Loved by Developers Across India
★★★★★
"Switched from a competitor and cut our messaging costs by 60%. Integration took less than a day."
★★★★★
"The WhatsApp API is genuinely the easiest I've worked with. Docs are excellent, support is fast."
★★★★★
"Free tier let us build our entire MVP without spending a rupee on APIs. Now on Starter and very happy."
★★★★★
"99.9% uptime is real. We've been running 6 months with zero outages affecting customers."
★★★★★
"One API key for everything. No more managing 4 different vendor accounts and dashboards."
★★★★★
"The pricing is genuinely the most competitive I've seen. Saved us ₹40K/month vs our old provider."
★★★★★
"Switched from a competitor and cut our messaging costs by 60%. Integration took less than a day."
★★★★★
"The WhatsApp API is genuinely the easiest I've worked with. Docs are excellent, support is fast."
★★★★★
"Free tier let us build our entire MVP without spending a rupee on APIs. Now on Starter and very happy."
★★★★★
"99.9% uptime is real. We've been running 6 months with zero outages affecting customers."
★★★★★
"One API key for everything. No more managing 4 different vendor accounts and dashboards."
★★★★★
"The pricing is genuinely the most competitive I've seen. Saved us ₹40K/month vs our old provider."
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