x402 merchant
Json-schemaMcpCompatibilityCounterexample

Produce a concrete independently revalidated JSON-Schema/MCP backward-compatibility witness before merge/deploy. UNKNOWN or NO_WITNESS_FOUND never means compatible.

MerchantReport

0xdc9a…8fff

0xdc9adc71ceeb973bedc9814272fb457c8c918fffExplorer
$0.02
Received
$0.00
Paid out
2
Settlements
1
Distinct counterparties
Over the whole indexed history

Received $0.02 of the $260.03M Roundhouse has indexed across 715,511 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (2)

Activity

MarAprMayJunJulAugSep
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xe261…8dbe$0.00$0.02227d 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; all observed volume is with one counterparty, in all 2 observed settlements.

Organic volume $0.02 of $0.02 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xe261…8dbe0xdc9a…8fffBase$0.01100%coinbase27d ago0xf068da…6adaa8
0xe261…8dbe0xdc9a…8fffBase$0.01100%coinbase27d ago0x29858b…f8ed39

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xdc9a…8fff's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xdc9adc71ceeb973bedc9814272fb457c8c918fff

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: 0xdc9adc71ceeb973bedc9814272fb457c8c918fff

curl -s 'https://api.roundhouseai.io/v0/merchants/0xdc9adc71ceeb973bedc9814272fb457c8c918fff'
curl -s 'https://api.roundhouseai.io/v0/entities/0xdc9adc71ceeb973bedc9814272fb457c8c918fff/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.