Vocalis

Vocalis replaces OTPs with voice-based authentication using dynamic phrases and AI liveness detection—making payments faster and far more secure against fraud and deepfakes.

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Frontend: React / Next.js for a clean, responsive UI Backend: Node.js with secure authentication APIs Voice Processing: Speech-to-text + voice embedding models Cosine similarity / ML-based speaker verification Liveness Detection: Challenge-response system (dynamic phrases) Audio anomaly detection for synthetic voices Security Layer: Transaction-based risk engine (low/medium/high security tiers) Integration: Payment gateway (e.g., Razorpay) for real-world transactions

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