x402 merchant
402xAgent$0.02 / callapi.402xagent.com ↗
x402402xagentPre-payment-checkProbeCatalog

402xAgent: probe of a public URL (blocks private, loopback and link-local addresses on every redirect hop) for an x402 PAYMENT-REQUIRED challenge. Never pays the target. $0.02 USDC on Base after 5 free checks per UTC day.

MerchantReport

0x37cf…8674

0x37cfcc8a29e9ff9458902b29e31e42dc7b718674Explorer
Received
$1.24↑ 1700%
Last 7d vs prior 7d
Paid out
$2.35↑ 275%
Last 7d vs prior 7d
Settlements
175↑ 2.1%
Last 7d vs prior 7d
32
Distinct counterparties
Over the whole indexed history

Received $1.24 of the $846.98M Roundhouse has indexed across 1,330,524 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (165)

Funds flow over time

Activity

MayJunJulAugSepOct
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x1f81…39f1$0.40$0.0083d agoGraph
Kronos Crypto Data & Forecasts$0.10$0.0053d agoGraph
0xd7fe…15bf$0.08$0.0083d agoGraph
0x2ec4…be71$0.08$0.0083d agoGraph
0x525f…21e6$0.08$0.0083d agoGraph
0x9700…d3ab$0.08$0.0083d agoGraph
0xf752…31b9$0.08$0.0083d agoGraph
0x110c…b784$0.07$0.0076d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

10 self-dealing settlements (payer = payee) observed, in all 165 observed settlements.

Organic volume $1.31 of $2.45 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xa880…ef220x37cf…8674Base$0.02100%coinbase2d ago0xf1eea9…ed189f
0xa880…ef220x37cf…8674Base$0.02100%coinbase3d ago0x2a074b…5dfcf5
0x37cf…8674Quartermaster Transaction StatusBase$0.001100%coinbase3d ago0x3ce05b…d4350f
0x37cf…86740xf567…cb98Base$0.001100%coinbase3d ago0xaf2844…18fd61
0x37cf…86740xab67…54caBase$0.001100%coinbase3d ago0x16ae51…d546cc
0x37cf…8674HyperNatt TerminalBase$0.001100%coinbase3d ago0xeead5c…637e56
0x37cf…86740x548f…abc4Base$0.002100%coinbase3d ago0xfdc18a…a6daf6
0x37cf…8674Kronos Crypto Data & ForecastsBase$0.02100%coinbase3d ago0x69dbc5…8e9b16
0x37cf…86740x6490…a3b0Base$0.002100%coinbase3d ago0x1aa652…155e4c
0x37cf…86740xd7fe…15bfBase$0.01100%coinbase3d ago0xf219db…11c39a
0x37cf…86740x2ec4…be71Base$0.01100%coinbase3d ago0xcc741a…e4794c
0x37cf…86740x525f…21e6Base$0.01100%coinbase3d ago0x95da06…6e47a5
0x37cf…86740xffa9…686fBase$0.001100%coinbase3d ago0x16b92d…e80d97
0x37cf…86740x1f81…39f1Base$0.05100%coinbase3d ago0x029015…131a05
0x37cf…86740x9700…d3abBase$0.01100%coinbase3d ago0x505e24…a898fa
0x37cf…86740xc327…815fBase$0.005100%coinbase3d ago0x3eb812…4d002c
0x37cf…86740x58bd…6b6cBase$0.003100%coinbase3d ago0x246517…a50803
0x37cf…86740xf752…31b9Base$0.01100%coinbase3d ago0x8621a2…a34a16
0x37cf…86740x480c…846aBase$0.002100%coinbase3d ago0x231105…bedd42
0x37cf…86740x6d6e…9192Base$0.007100%coinbase3d ago0x69ec20…430c01
0x37cf…86740x52e2…f3eaBase$0.003100%coinbase3d ago0xce8de5…c0b42f
0x37cf…86740x37cf…8674Base$1.00100%payAI5d ago0x626265…c85b24
0x37cf…86740x37cf…8674Base$0.02100%payAI6d ago0x2d3bab…e8733a
0x37cf…86740xf567…cb98Base$0.001100%coinbase6d ago0x06d4a5…4079e9
0x37cf…8674Quartermaster Transaction StatusBase$0.001100%coinbase6d ago0x16ceff…dbea1d

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x37cf…8674's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x37cfcc8a29e9ff9458902b29e31e42dc7b718674

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0x37cfcc8a29e9ff9458902b29e31e42dc7b718674

curl -s 'https://api.roundhouseai.io/v0/merchants/0x37cfcc8a29e9ff9458902b29e31e42dc7b718674'
curl -s 'https://api.roundhouseai.io/v0/entities/0x37cfcc8a29e9ff9458902b29e31e42dc7b718674/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.