tally
live·reading the chain…

Ask anything. Pay for exactly what it costs.

Nobody knows the price until the model answers. The buyer signs a $0.50 ceiling — one signature, no transaction — and is charged only for the tokens that actually came back. The bill is settled and proven on Hedera. Flip the seller dishonest, and watch the chain catch it.

01
You ask

A question with an unknown price. The buyer signs a ceiling, not a number.

02
The seller meters

It answers, counts the tokens it produced, and settles the actual cost on-chain.

03
The chain proves it

The bill is signed to HCS. Anyone re-checks the maths from public data — trusting nobody.

Ask the agentceiling $0.50
Flip the seller dishonest — it publishes a false bill, and the audit still runs on public data, not its word.
The ceilingon-chain rule
max signed
$0.50
the ceiling
asset
USDC
HTS · 6dp
rule
≤ ceiling
settle the actual
verify(sig, max)  ·  settle(actual)  ·  require(actual ≤ max)
Live on Hederaevery sale, audited
auditing the topic…
open the full ledger →
AUTHORISE A CEILING · PAY THE ACTUAL ✦ FIRST NON-EVM UPTO IN X402 ✦ SOFTWARE PAYS SOFTWARE · NO HUMAN IN THE LOOP ✦ AN OVERCHARGE IS ARITHMETIC ANYONE CAN CHECK ✦ RECEIPTS ON HCS · $0.0001 EACH ✦ AUTHORISE A CEILING · PAY THE ACTUAL ✦ FIRST NON-EVM UPTO IN X402 ✦ SOFTWARE PAYS SOFTWARE · NO HUMAN IN THE LOOP ✦ AN OVERCHARGE IS ARITHMETIC ANYONE CAN CHECK ✦ RECEIPTS ON HCS · $0.0001 EACH ✦