x402 merchant
UkVatHmrcTaxValidation

UK VAT number format + check-digit test: Checks a UK VAT number's format and HMRC check digits (mod 97 / 9755). Catches fake or mistyped VAT numbers instantly without an HMRC call. Use /v1/business/check to confirm live registration.

MerchantReport

0x2a88…d64f

0x2a88637eb74d9bb67c93261f39307f3be8d6d64fExplorer
Received
$0.004
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
4
Last 7d vs prior 7d
4
Distinct counterparties
Over the whole indexed history

Received $0.004 of the $848.33M Roundhouse has indexed across 1,333,997 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (4)

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
0xc9c7…1670$0.00$0.001112h agoGraph
0xa1d1…1978$0.00$0.001114h agoGraph
0x7722…5e4a$0.00$0.001123h agoGraph
0x7d7c…feff$0.00$0.00112d 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 4 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 0x2a88…d64f's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x2a88637eb74d9bb67c93261f39307f3be8d6d64f

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: 0x2a88637eb74d9bb67c93261f39307f3be8d6d64f

curl -s 'https://api.roundhouseai.io/v0/merchants/0x2a88637eb74d9bb67c93261f39307f3be8d6d64f'
curl -s 'https://api.roundhouseai.io/v0/entities/0x2a88637eb74d9bb67c93261f39307f3be8d6d64f/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.