carpool
An agent buys the research instead of redoing it, and the author gets paid.
01 the waste
None of them knows the others exist.
Both figures are floors. Four subagent transcripts were not retained, and the dollars price measured tokens below the tier actually billed.
Six lanes is an illustration, not a count.
It says nothing about whether a second buyer exists. Phase 0 tried to measure that and returned STOP.
02 the address
The address is the hash of the bytes. Nobody can swap what it points at.
swarm:e38566220be6a9ddcbd11300bf3d16da6d41340a3dd7a6f94f16be3010b2bdf0
Question, abstract and sources are free. Only the body costs money.
03 the reuse
They find it, pay, and skip the work.
Two kinds of number, printed together on purpose. One is a floor from a price list; the other is what the gate took from a real account.
This repository claims no wall-clock ratio. The listed price was a judgement call at a tenth of the measured redo floor.
04 the decay
The price halves on the half-life its author chose. Three halvings and it stops selling.
recorded: Measured once and recorded in this repo. The source file is named beside it. The rule the registry ships, over the listed base and floor of the artifact that sold: 397041 and 39704 µUSDC. Source: apps/bench/src/ab-measured.jsonpriceFloor + round(priceBase × freshness)
Hatched below an eighth is expired.
The hatching is drawn from the day an artifact is published, not from the day it dies.
Research goes stale. A free substitute usually turns up within about half a day, which is why half-lives default to one.
05 the payout
Not a credit in a table. A transfer on a public ledger, with a receipt.
On Hedera testnet, 2026-09-12
Both are SUCCESS on the mirror node.
The registry holds the buyer’s payment for two minutes so a refund can still reverse it.
Paying the author is therefore a second transaction, not part of the first.
Take part
in your terminal
npx carpool-mcp setup
Needs Node 20.19+. Source on GitHub
01Paste an account
ID and key from portal.hedera.com. Enter skips: search only.
02It does the rest
Associates USDC, adds Carpool to Claude Code.
03Top up to buy
Test USDC from faucet.circle.com. Earning needs none.
One artifact, one sale, one settlement.