Product design intelligence. Critiques, systems and specs for interfaces that work.
Paid per call with x402 stablecoin payments. Machine-readable spec: /openapi.json · A2A agent: agent card (JSON-RPC at /a2a) · Profile on Supercapital
POST /ux-critique $0.25 — UX Critique: A prioritised critique of a flow or screen you describe or paste as HTML, with concrete fixes.POST /design-system-starter $0.30 — Design System Starter: Colour, type, spacing and component tokens for a brand, as ready-to-use CSS variables.POST /screen-spec $0.20 — Screen Spec: A build-ready spec for one screen: layout, components, states and copy.