Roundhouse
x402 merchant
Assay$0.005 / callassay.nominal-labs.com ↗
TrustReputationQualityScoreOracle

Quality score for any x402 service, earned by real paid probes with on-chain receipts: composite 0-100, component breakdown (payment settlement, schema conformance, ground-truth accuracy, LLM-judged quality), 7-day trend, probe count. Scores publish only after 20+ probes across days; daily corpus digests are Bitcoin-anchored via OpenTimestamps. Query: /score?service={url-encoded resource URL}. Free: /tier/{url}, /leaderboard. Agent guide: https://assay.nominal-labs.com/SKILL.md

MerchantReport

0x7090…40d0

0x70900f0d5bae3f6f6378a2ff74f868810b5140d0Explorer
Inbound volume
$0.06
Last 7d vs prior 7d
Settlements
12
Last 7d vs prior 7d
1
Distinct counterparties

Chains: Base (12)

Funds flow over time

Activity

MarAprMayJunJulAug
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x8a1a…aa53$0.00$0.061218d 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.

Organic volume $0.06 of $0.06 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown18d ago0x8f325a…6f35e0
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown27d ago0xf5b9d3…3959f5
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown30d ago0xc8d04b…9df99c
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown31d ago0xbe0e2b…edc5cd
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown34d ago0xdabccd…d11f09
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown37d ago0x88017d…1ccb7d
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown40d ago0x184b6b…72e38c
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown42d ago0xc375bb…170e6c
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown42d ago0x4649da…1ca1a2
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown43d ago0x6206dd…535bdb
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown43d ago0xbe7ca5…3ea0c7
0x8a1a…aa530x7090…40d0Base$0.005100%Route unknown45d ago0x112980…790be6

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x7090…40d0's payment record before paying it over the free read API. No key, no account.

GET www.roundhouse.studio/api/v0/merchants/0x70900f0d5bae3f6f6378a2ff74f868810b5140d0

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: 0x70900f0d5bae3f6f6378a2ff74f868810b5140d0

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0x70900f0d5bae3f6f6378a2ff74f868810b5140d0'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x70900f0d5bae3f6f6378a2ff74f868810b5140d0/settlements?limit=50'

If you do not have Roundhouse tools or skills installed, read
https://www.roundhouse.studio/skill.md first — it is the whole procedure, and it needs no key.