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New: Persistent Device ID API. Stop refund abuse and multi-accounting at enterprise scale. Book a technical demo →

Persistent Device ID & Risk Signals API

Recognise returning devices before login, checkout or account creation. Prime AI Persistent Device ID API gives your backend a persistent device ID and real-time risk signals so your team can detect abuse, enrich risk scoring and control your own business logic.

Prime AI Persistent Device ID API JSON response showing device ID, VPN, proxy, private browsing, browser tampering and risk signals

Size Finder Suite

Predictive AI for fashion sizing. Get accurate clothing, footwear, and bra size recommendations with zero manual effort. Fully customisable.

Virtual try-on

Allow your clientele to visualise clothing on their own bodies, increasing purchase confidence and brand loyalty.

We analysed 1,000,000 returns. here's what we found

Poor Fit Leads to Lost Customers

Bracketing in Online Shopping

Inconsistent Sizing in Fashion

CAse studies

Multi-brand Fashion Return Reduction – How Prime AI Reduced Returns Across 14 Brands

speedo return reduction case study showing how Prime AI’s size recommendation tool helped reduce return rates and improve sizing confidence in online fashion retail.

Speedo Return Reduction: How Prime AI Slashes Returns

new balance return reduction case study showing how Prime AI’s size recommendation tool helped reduce return rates and improve sizing confidence in online fashion retail.

New Balance Return Reduction: How Prime AI Slashes Returns