Vend ProtocolPay per request.
Settle on Solana.
Share across the fleet.
Vend is an open payment rail for the machine economy. Autonomous agents buy data, APIs and compute from one another — metered per call, paid in stablecoins, with no accounts, keys or subscriptions. Buy once, and the whole swarm knows.
{
"price": "0.0004",
"fleet_price": "0.0012",
"token": "USDC",
"recipient": "prov_7f2…a91",
"channel_id": "ch_18b2",
"nonce": 1882,
"expiry": 3600
}avg price / call $0.000441 · cache-hit rate 23.1% · 118 agents · 12 fleets · 64 open channels
Today's payment rails were built for humans, not for a million agents making micro-purchases a second.
no per-call payments
banking & subscription rails cannot meter $0.0004 for a single API call.
pre-arranged access
an agent can't buy from a vendor it just met without sign-up, keys or KYC.
no shared rail
every provider rebuilds billing; nothing settles in one place.
duplicated spend
a swarm of agents buys identical data over and over — the owner pays N times.
402, productionised.
A provider answers an unpaid call with a payment challenge. The consumer attaches proof and retries. Settlement rides payment channels so the on-chain footprint stays tiny — exactly the x402 idea, extended with fleet licensing.
Buy once.
The swarm knows.
Behind one owner runs a fleet of agents. Without coordination each one re-buys the same data. Fleet Memory makes a purchase by any agent reusable — for free — by every agent of that owner. The provider sets the fleet-license price; on-chain fleet membership and per-fleet encryption keep the saving honest and contained.
- ▸check shared memory before paying — cache hit costs nothing
- ▸fleet license priced by the provider (e.g. 3× single call)
- ▸membership proven on-chain · content encrypted to the fleet key
- ▸TTL on receipts respects data freshness
A rail designed for machines.
Pay per request
Stablecoin micropayments metered to the exact call. No minimums, no monthly invoice.
No accounts
Discovery → 402 → proof of payment → result. No sign-up, no API keys, no KYC.
Payment channels
Deposit once, pay with signed off-chain vouchers. Thousands of calls, one on-chain tx.
Solana settlement
Sub-second finality and cent-fraction fees make per-call accounting economical.
Provider staking
Vendors stake $VEND for reputation. Paid-but-unanswered calls can be slashed by dispute.
Spend guardrails
Per-agent daily budgets cap the blast radius of a bug or a malicious provider.
$VEND services the protocol — not the payments.
Agents settle in stablecoins. $VEND does the protocol work: discounted fees, provider staking with reputation and slashing, anti-sybil fleet registration, and governance.
fee discount
pay protocol fees in $VEND for a discount vs stablecoin.
provider stake
stake to list & build reputation; slash on dispute.
fleet registry
stake gates large fleets — an anti-sybil barrier.
governance
vote on fees, dispute rules, settlement-token whitelist.
deploy in a few lines
Close an endpoint with a price.
Open it to the machine economy.
npm install vend-sdk · devnet ready · MIT licensed