🇮🇳 Built for India • DLT Compliant

Messaging APIs
developers love

Lightning-fast APIs. Enterprise reliability.
Sub-50ms response times.

Send SMS, WhatsApp & RCS messages through one unified API. Built for Indian developers with transparent pricing.

99.99% uptime
<50ms response
No contracts
Your OTP is 123456. Valid for 10 minutes.
✅ Delivered in 45ms via Tier-1 routes
Response Time
42ms
Delivery Rate
99.9%

Trusted by India's leading companies

Zomato logo
Paytm logo
Swiggy logo
Flipkart logo
Ola logo
BigBasket logo
Myntra logo
PhonePe logo
Zomato logo
Paytm logo
Swiggy logo
Flipkart logo
Ola logo
BigBasket logo
Myntra logo
PhonePe logo
10B+
Messages delivered monthly
500+
Companies trust us
99.99%
Uptime SLA

Why ContactWise?

We've built the messaging platform we always wanted to use. Reliable, developer-friendly, and designed for the Indian market.

World-class Reliability

Tier-1 carrier connections with 99.99% uptime SLA. Your messages reach customers when it matters most.

Developer Euphoria

Clean REST & Webhook APIs, comprehensive SDKs, detailed docs, and Postman collections. Built by developers, for developers.

Transparent Pricing

One blended per-message rate. No hidden fees, no contracts, no commitments. Pay only for what you use.

India-centric Compliance

DLT registration, template approval flows, and consent management built-in. Stay compliant effortlessly.

Lightning Fast

Sub-100ms API response times

Expert Support

24/7 technical support team

Global Reach

Send to 200+ countries

Enterprise Security

SOC 2 Type II compliant

Calculate your savings

See how much you can save by switching to ContactWise's transparent pricing

Cost Calculator
10,000 messages
1K100K500K1M+

Current Cost

Messages (10,000)₹3,500
Setup & Monthly Fees₹500
Total Monthly Cost₹4,000

ContactWise Cost

Messages (10,000)₹2,500
Setup & Monthly Fees₹0
Total Monthly Cost₹2,500
Monthly Savings
₹1,500
Save 37.5% every month • ₹18,000 annually

No setup fees • No contracts • Start in 5 minutes

Start coding in minutes

Clean, intuitive APIs that developers love. Send your first message in under 5 minutes.

Send SMS Example
curl -X POST https://api.contactwise.dev/v1/sms \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
  "to": "+919876543210",
  "message": "Your OTP is 123456. Valid for 10 minutes.",
  "sender_id": "CNTCTW",
  "template_id": "otp_template_001"
}'

Multiple SDKs

Node.js, Python, PHP, C#, Java, and more

Postman Collection

Ready-to-use API collection for testing

Comprehensive Docs

Detailed guides and API reference

Start sending in 5 minutes

Join thousands of developers who trust MessageFlow for their messaging needs. No setup fees, no contracts, no hassle.

Instant Setup
Ready in minutes
99.99% Uptime
Enterprise reliability
24/7 Support
Always here to help
✨ Free tier includes 100 messages • No credit card required