← Varaksha|Architectural Flow

System Architecture · Walkthrough

Follow a ₹4,750 PaymentThrough Every Layer of Defence

Click through each layer at your own pace. See exactly what Varaksha does with a real payment — from the moment it leaves the phone to the final fraud verdict.

Hit “Start Simulation” to begin — then step through each layer using the Next and Back buttons below.

Deployment Model

The Same Pipeline.
Three Integration Depths.

Every Varaksha deployment tier shares identical model artefacts, feature engineering, and scoring logic. The tier determines where inference runs and how results are consumed.

T1Live · Railway API

Cloud

T1

Hosted SOC Dashboard

The Rust gateway runs on Railway. The React dashboard streams verdicts via SSE from the live backend. ONNX inference happens server-side in <10ms P99. Suitable for PSPs that want zero infrastructure overhead — point your webhooks at the hosted endpoint.

  • Rust gateway on Railway
  • Cloudflare Pages CDN frontend
  • SSE live transaction stream
  • ONNX Runtime server-side
  • POST /v1/tx REST API
Open Live Demo →
T2Live · Graph Engine

Enterprise

T2

API-First + Graph Topology

PSP banks integrate via mTLS-protected REST API. The graph agent pushes HMAC-SHA256-signed webhook bundles on every FLAG or BLOCK verdict. NetworkX topology monitor exposes fan-out, fan-in, and cycle metrics per VPA partition. Full DPDP §7(g) audit trail per verdict.

  • mTLS mutual authentication
  • HMAC-SHA256 signed webhooks
  • NetworkX streaming topology
  • Per-VPA NPCI OC-215 rate limits
  • JSON audit log export
View Enterprise Tier →
T3Simulation

Embedded SDK

T3

On-Device Pre-Network Gate

The quantized ONNX model (<5MB) ships inside iOS and Android UPI apps via ONNX Runtime Mobile. Fraud is scored locally before the transaction touches any network stack — zero round-trip latency, works fully offline. The simulation runs in your browser.

  • Quantized ONNX < 5MB bundle
  • ONNX Runtime Mobile (C++)
  • Zero network round-trip
  • Offline-capable scoring
  • JNI/Swift native bridge
View Embedded Sim →