🇮🇳 ⚡ Flutter (Dart) Ready OTP Gateway

High-Speed OTP SMS API for Flutter (Dart)

Drop our production-tested REST API directly into your Flutter (Dart) app without extra dependencies. Empower your verification pipeline with NizoraSMS under 2.5-second OTP delivery, 99.9% uptime, and low-cost rates from ₹0.16/SMS.

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< 2.5s OTP Delivery SLA
TRAI DLT Compliant
Multi-Carrier Auto-Failover
< 2.5s Avg OTP Speed
99.9% Delivery SLA
₹0.16 Starting Price
Flutter (Dart) Integration Example REST API v1 
final response = await http.post(
  Uri.parse('https://nizorasms.com/api/v1/otp/send'),
  headers: {'Authorization': 'Bearer $apiKey', 'Content-Type': 'application/json'},
  body: jsonEncode({'mobile': userPhone, 'otp': otpCode}),
);

Explore OTP API Across Stacks & Industries

Pre-configured solutions and fast integration guides across India's top development environments.

OTP API for WordPress OTP API for WooCommerce OTP API for Laravel OTP API for Node.js OTP API for Express.js OTP API for Next.js OTP API for React Native OTP API for Flutter (Dart) OTP API for Python OTP API for Django OTP API for FastAPI OTP API for PHP (Native)
OTP for E-Commerce OTP for FinTech & Payments OTP for Banking & NBFC OTP for Healthcare & Diagnostics OTP for Real Estate Portals OTP for EdTech & Online Coaching OTP for Online Gaming & Fantasy Sports OTP for Food Delivery & Cloud Kitchens OTP for Logistics & Courier Delivery OTP for Matrimony & Dating Apps

Frequently Asked Questions

Everything you need to know about setting up high-speed OTP verification.

How fast is NizoraSMS OTP delivery for this integration?

NizoraSMS delivers OTPs in under 2.5 seconds with dedicated high-priority telecom pipes across Jio, Airtel, Vodafone Idea (Vi), and BSNL in India.

Is DLT registration required?

Yes, as per TRAI regulations in India. NizoraSMS provides instant pre-approved compliant OTP templates so you can test and launch immediately.

How much does NizoraSMS cost per OTP?

Pricing starts from ₹0.16 to ₹0.28 per OTP with flexible pay-as-you-go wallet recharges starting at just ₹200 with zero monthly lock-ins.

Ready to Upgrade Your OTP Delivery?

Create an account, recharge with ₹200, and start verifying users in under 2.5 seconds.

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