x402 merchant
EVM Address Checksum Validator$0.001 / callevm-address-checksum.supriyaanto91.workers.dev ↗
Evmeip-55Address

Check one EVM address for hexadecimal format and EIP-55 checksum. Does not report balance, risk, contract code, or security.

MerchantReport

0xc4ca…bf0d

0xc4caf127afd0a7ae22bbfa27a8f4a9634fd0bf0dExplorer
Received
$0.002
Last 7d vs prior 7d
Paid out
$1.00
Last 7d vs prior 7d
Settlements
3
Last 7d vs prior 7d
3
Distinct counterparties
Over the whole indexed history

Received $0.002 of the $3060.46M Roundhouse has indexed across 1,398,118 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (3)

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
0x6b7b…a4e5$1.00$0.0012d agoGraph
0xa1d1…1978$0.00$0.00111d agoGraph
0x6abb…12f3$0.00$0.00111d agoGraph

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

Data quality

100% of observed volume is with a single counterparty, in all 3 observed settlements.

Organic volume $1.00 of $1.00 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xa1d1…19780xc4ca…bf0dBaseBase$0.001100%payAI1d ago0x2e2110…42fbad
0x6abb…12f30xc4ca…bf0dBaseBase$0.001100%payAI1d ago0xe1d699…f075b6
0xc4ca…bf0d0x6b7b…a4e5BaseBase$1.00100%coinbase2d ago0xd9d898…64e5a3

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xc4ca…bf0d's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xc4caf127afd0a7ae22bbfa27a8f4a9634fd0bf0d

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: 0xc4caf127afd0a7ae22bbfa27a8f4a9634fd0bf0d

curl -s 'https://api.roundhouseai.io/v0/merchants/0xc4caf127afd0a7ae22bbfa27a8f4a9634fd0bf0d'
curl -s 'https://api.roundhouseai.io/v0/entities/0xc4caf127afd0a7ae22bbfa27a8f4a9634fd0bf0d/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.