x402 merchant
Korea Business Status (NTS)$0.02 / callhandsel-mandate-demo.vercel.app ↗
KoreaBusinessRegistrationNtsVerify

사업자등록번호를 넣으면 국세청 기준 사업자 상태(계속·휴업·폐업), 과세유형, 폐업일을 돌려줍니다. 한 번에 최대 100건, 인증키 불필요. Korea business registration status check: given Korean business registration numbers (사업자등록번호), returns the National Tax Service (NTS) status (active / suspended / closed), VAT taxpayer type and closure date, up to 100 numbers per call. Source: NTS via data.go.kr. (sample input)

MerchantReport

0xe818…9232

0xe818cf591e65c93600311e789f25301138299232Explorer
Received
$0.14
Last 7d vs prior 7d
Paid out
$0.003
Last 7d vs prior 7d
Settlements
10
Last 7d vs prior 7d
6
Distinct counterparties
Over the whole indexed history

Received $0.14 of the $3064.22M Roundhouse has indexed across 1,399,289 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (10)

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
0xa1d1…1978$0.00$0.0421d agoGraph
0xadc7…c3d0$0.00$0.04247d agoGraph
0x7722…5e4a$0.00$0.02113d agoGraph
0x9d42…ece9$0.00$0.02116d agoGraph
0xc9c7…1670$0.00$0.02139d agoGraph
0x6b0f…5f25$0.003$0.00340d agoGraph

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

Data quality

No concentration or self-dealing patterns detected in all 10 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 0xe818…9232's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xe818cf591e65c93600311e789f25301138299232

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: 0xe818cf591e65c93600311e789f25301138299232

curl -s 'https://api.roundhouseai.io/v0/merchants/0xe818cf591e65c93600311e789f25301138299232'
curl -s 'https://api.roundhouseai.io/v0/entities/0xe818cf591e65c93600311e789f25301138299232/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.