Improve OAuth consent UX with a shared interstitial layout

Large enterprises and platform teams are drowning in inconsistent OAuth consent experiences: security, phishing risk and user drop-off increase as organizations manage tens to thousands of internal and third‑party integrations, and the identity/integration market already attracts roughly $2.0M per large enterprise on tooling and services (15,000 enterprises ≈ $30B total). Product, security and developer experience owners are the primary buyers because they own conversion, fraud surface area and auditability across hundreds of OAuth clients. A practical product is a shared interstitial layout delivered as an SDK + hosted component with optional enterprise deployment: a standard, brandable consent UI with machine‑readable provenance, automated reputation scoring, built‑in accessibility/localization, analytics and a consent registry/admin console that pushes policy changes centrally. Provide React, iOS/Android and server SDKs, IdP integrations and a pricing model that scales by active apps or MAUs so large customers can forecast cost versus risk reduction. This is timely: API‑first SaaS and composable platforms are increasing the number of OAuth clients, phishing sophistication is rising, and enterprises already spend about $2.0M each on identity/integration tooling; the market score of 92/100 and revenue potential of 88/100 reflect a sizable, growing opportunity if execution is disciplined. You can differentiate by combining UX standardization with security signals—reputation scoring, cryptographic provenance and SOC/ISO compliance—to reduce successful social engineering, while offering plug‑and‑play SDKs to lower developer friction. Real challenges are adoption friction and network effects: reputation scoring needs scale, large IdPs and platform providers may resist change, and selling a security/Ux component into entrenched flows will require strong pilot results with security‑sensitive verticals (fintech, healthcare) and clear ROI metrics.