x402 merchant
Japan Postal Lookup$0.001 / callapi.jpverify.com ↗
JapanPostal-codeLookupReverse-lookupJapan-post

Japanese postal-code lookup and reverse lookup. Keywords: Japanese postal lookup, Japan Post postal code, postal code reverse lookup, 日本郵便番号検索. Use a postal code or prefecture/city/ward/town components against the local Japan Post snapshot. / 郵便番号、または都道府県・市区町村・区・町域を指定し、ローカルの日本郵便データで郵便番号を検索・逆引きします。

MerchantReport

0xe4a4…572f

0xe4a4e5b226be71e7b6ed523bc7a91089c770572fExplorer
Received
$3.11↑ 13083%
Last 7d vs prior 7d
Paid out
$0.95
Last 7d vs prior 7d
Settlements
123↑ 900%
Last 7d vs prior 7d
14
Distinct counterparties
Over the whole indexed history

Received $3.11 of the $3060.21M Roundhouse has indexed across 1,397,717 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (123)

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
0x838e…3bea$0.95$2.89781d agoGraph
0x6a0b…4518$0.00$0.09232d agoGraph
0xc9c7…1670$0.00$0.04321h agoGraph
0x8d2a…7d37$0.00$0.022363d agoGraph
0xec2a…d034$0.00$0.02431d agoGraph
0x6031…c2d1$0.00$0.01312d agoGraph
0xf1f1…57f9$0.00$0.0111d agoGraph
0xc533…2d7a$0.00$0.01170d agoGraph

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

Data quality

95% of observed volume is with a single counterparty, in all 123 observed settlements.

Organic volume $4.06 of $4.06 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x838e…3bea0xe4a4…572fBaseBase$0.05100%coinbase84d ago0x513a79…fee5b5
0x838e…3bea0xe4a4…572fBaseBase$0.005100%coinbase84d ago0x7f405d…2098e0
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase84d ago0xda1bc6…c1013c
0x838e…3bea0xe4a4…572fBaseBase$0.10100%coinbase84d ago0x708f74…081e88
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase84d ago0xa36463…9eb545
0x838e…3bea0xe4a4…572fBaseBase$0.01100%coinbase84d ago0x424e3d…aad478
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase85d ago0xc178c8…a6ca20
0x838e…3bea0xe4a4…572fBaseBase$0.10100%coinbase85d ago0xb9ad77…f8c3d1
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase85d ago0x96bf50…64b5cc
0x838e…3bea0xe4a4…572fBaseBase$0.10100%coinbase85d ago0x82687f…6e73be
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase85d ago0x98b694…543c54
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase85d ago0xc9ce03…b4910f
0x838e…3bea0xe4a4…572fBaseBase$0.05100%coinbase85d ago0x2d168c…6cb360
0x838e…3bea0xe4a4…572fBaseBase$0.10100%coinbase85d ago0xab4f1d…4cf734
0x838e…3bea0xe4a4…572fBaseBase$0.03100%coinbase85d ago0x28c487…639ba6
0x838e…3bea0xe4a4…572fBaseBase$0.01100%coinbase85d ago0xcd9bf6…749fee
0x838e…3bea0xe4a4…572fBaseBase$0.005100%coinbase85d ago0x0fbac7…185686
0x838e…3bea0xe4a4…572fBaseBase$0.05100%coinbase85d ago0x614d17…e77aec
0x838e…3bea0xe4a4…572fBaseBase$0.02100%coinbase85d ago0xbd5289…0083e0
0x838e…3bea0xe4a4…572fBaseBase$0.05100%coinbase85d ago0x31db08…1eb541
0x838e…3bea0xe4a4…572fBaseBase$0.01100%coinbase85d ago0xff311c…062061
0x838e…3bea0xe4a4…572fBaseBase$0.01100%coinbase85d ago0x53989a…fdf058
0x838e…3bea0xe4a4…572fBaseBase$0.01100%coinbase85d ago0x26bcdc…1a9b45

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xe4a4…572f's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xe4a4e5b226be71e7b6ed523bc7a91089c770572f

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: 0xe4a4e5b226be71e7b6ed523bc7a91089c770572f

curl -s 'https://api.roundhouseai.io/v0/merchants/0xe4a4e5b226be71e7b6ed523bc7a91089c770572f'
curl -s 'https://api.roundhouseai.io/v0/entities/0xe4a4e5b226be71e7b6ed523bc7a91089c770572f/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.