BUILD 01
LIVE · EARLY ACCESS
Jacobi
A tool that catches websites charging you more — and proves it with statistics.
Jacobi dispatches 24 synthetic shopper identities against a product page — varying location, device, cookies, referrer, and language — then attributes any price gaps to their causes. The 0–100 exploitation score hard-gates to zero unless the statistics survive a coverage gate: it refuses to claim discrimination it can't prove. Live on an early-access waitlist with a Chrome extension and research-grade PDF evidence reports.
- 01Per-variable price attribution computed as a finite-difference Jacobian — the name is the method
- 02Welch's t-tests behind a coverage gate, so the score collapses to 0 without significance
- 03Multi-network egress (datacenter / residential / mobile) to separate network effects from real discrimination
