65,729
construction cost items, open to everyone
→ free & public (JCCDB)
A former carpenter open-sourced the real cost of construction — and anchored it to Bitcoin, so no one can quietly fake the numbers. Now anyone can check.
Construction is a black box. Almost no one can tell a fair price from an inflated one. So the cost of every wasted quote, every layer of middlemen, every hidden fee — gets quietly loaded onto the homeowner who says yes.
Illustrative of field experience; actual cases vary. We don't state these numbers as absolute — we give you the tools to check your own.
I left school as a teenager and became a carpenter. Thirty years on site. A year ago I taught myself to code, with AI as my teacher. I'm not a politician. I'm not a lawyer. I'm one person who got tired of watching people get overcharged — and built the tool to stop it. If one ex-carpenter can do this, ordinary people can change the rest.
This isn't a revolution that burns the old players down. It's a transparent rebuild where, in the long run, everyone has a reason to stay. We're honest about what's real today and what's still ahead — each stage stands on the proven data of the last. No skipping ahead.
Send a quote, AI judges if it's fair. Already running.
Contractors rated as not inflating are surfaced through certification.
Residents pick their own work from certified pros.
Certified pros verify each other's work.
Buy direct from makers. Real reward for good work.
We're building toward something bigger. The people who move first shape what it becomes. Add your name — and we'll bring you in before anyone else.
Free to join. Your email is used only for updates on this movement.
You're now a founding supporter.
The moment we launch, you'll be the first to know.