x402 merchant
JSON Schema Verifier$0.02 / callfastapi-service-5ag4.onrender.com ↗
Json-schemaJsonschemaSchema-validationData-validationValidation

General-purpose JSON Schema validation service. Validates any JSON value — agent tool outputs, API responses, generated documents, configuration payloads, or data exchanged between agents — against a caller-supplied JSON Schema (draft-04 through 2020-12) and returns every violation found, not just the first. Read-only: never modifies the submitted data.

MerchantReport

0x42a3…855e

0x42a3c399f83bccc3b9eef81e65954a715d54855eExplorer
$0.04
Received
$0.00
Paid out
2
Settlements
2
Distinct counterparties
Over the whole indexed history

Received $0.04 of the $259.14M Roundhouse has indexed across 714,236 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
0xc9c7…1670$0.00$0.0212d agoGraph
0xcc0a…0341$0.00$0.0212d agoGraph

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

Data quality

50% of observed volume is with a single counterparty, in all 2 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xc9c7…16700x42a3…855eBase$0.02100%coinbase2d ago0xde0561…097585
0xcc0a…03410x42a3…855eBase$0.02100%coinbase2d ago0x4f0591…f29a29

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x42a3…855e's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x42a3c399f83bccc3b9eef81e65954a715d54855e

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: 0x42a3c399f83bccc3b9eef81e65954a715d54855e

curl -s 'https://api.roundhouseai.io/v0/merchants/0x42a3c399f83bccc3b9eef81e65954a715d54855e'
curl -s 'https://api.roundhouseai.io/v0/entities/0x42a3c399f83bccc3b9eef81e65954a715d54855e/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.