keystone · runs in your browserThe stack, wired
Sign in, pick a tenant, meter some usage, then ask the member about the bill. Identity gates it, tenancy isolates it, billing prices it to the exact minor unit and posts a balanced ledger, and the member reads the same state — the four kits over one executor. It is a faithful simulation; nothing here touches a database.
identity-kit
tenant-kit
billing-kit
ai-memberidentity-kitsession active
Y
opaque UserId · usr_9f2a…
tenant-kitrow-level isolation
billing-kitmeter → price → post
acme · invoice
$0.00
0API call
0Storage GB
0Seat
No events yet — meter one to see the ledger post.
Scoped to acme. globex owes $0.00 — a separate ledger you can’t see from here.
ai-membergrounded in the live state