Builder combines an autonomous coding agent, in-browser Node sandbox, and Mongo-backed project storage so your work survives refresh and syncs when you deploy.
Usage is measured in credits so you always know what you have left. Start with a free trial, then upgrade from $20/mo — allowances are sized so we keep ≥60% margin even on premium models.
Sign up to save projects, track usage from your dashboard, and connect GitHub, Vercel, and Supabase when you are ready to deploy.

