A hosted mock REST API for frontend development. Most mocks are read-only fictions where POST politely pretends to work; this one persists writes, rotates refresh tokens, rate-limits per IP across instances, and models dependency failure explicitly.
How it knows: 213 tests that never touch a real Neon or Upstash instance, and a production mode that refuses to boot on a default JWT secret rather than appearing healthy.
Nicholas Smith - all work