x402 merchant
Hello World x402$0.001 / callx402-hello-world.vercel.app ↗
Hello-worldDemoGreeting

Hello World x402 demo. Returns the JSON greeting {"message":"Hello World"} after a 0.001 USDC payment on Base, settled through the Coinbase x402 facilitator.

MerchantReport

0xe3fe…7185

0xe3feb195c0a92bbcb8e169022ccefea1164f7185Explorer
Received
$1.50
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
15
Last 7d vs prior 7d
5
Distinct counterparties
Over the whole indexed history

Received $1.50 of the $3230.97M Roundhouse has indexed across 1,452,629 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (15)

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xe7a4…79cb$0.00$1.00219d agoGraph
0x8fb4…02ba$0.00$0.50102d agoGraph
0xc9c7…1670$0.00$0.001118d agoGraph
0xf1f1…57f9$0.00$0.001118d agoGraph
0x7722…5e4a$0.00$0.001118d agoGraph

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

Data quality

67% of observed volume is with a single counterparty, in all 15 observed settlements.

Recent activity

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent: it will check 0xe3fe…7185's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xe3feb195c0a92bbcb8e169022ccefea1164f7185

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: 0xe3feb195c0a92bbcb8e169022ccefea1164f7185

curl -s 'https://api.roundhouseai.io/v0/merchants/0xe3feb195c0a92bbcb8e169022ccefea1164f7185'
curl -s 'https://api.roundhouseai.io/v0/entities/0xe3feb195c0a92bbcb8e169022ccefea1164f7185/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.