SyntheticUser Lab MCP

This is a paid remote MCP that connects Claude to SyntheticUser Lab's AI-driven user testing platform. It exposes operations for running usability simulations on Figma prototypes, public URLs, or screenshot sets using configurable AI personas that complete tasks and report friction points. You'd reach for this when you want to validate a checkout flow, surface drop-off patterns, or prioritize UX fixes before committing to user recruitment. The service returns heatmaps, click maps, sentiment feedback, and ranked issue lists with conversion impact estimates. Pricing runs through NOWPayments with tiers starting at $39.50/month for 5 tests with 50 synthetic users, scaling to unlimited tests on the Agency plan. It's meant for fast prototype decisions and research prep, not as a replacement for high-stakes human validation.