Roundhouse
x402 merchant
text-integrity sanitize$0.005 / callkenoodl.com ↗
IntegritySanitizePre-flightPrompt-injectionUnicode

Pre-flight integrity check for any text your agent processes or publishes. Catches prompt injection, invisible Unicode, homoglyphs, and LLM watermarks — the silent failures most pipelines ship past. POST text → clean text + flags + risk score. Sub-50ms. Deterministic. Cacheable.

MerchantReport

0x99fc…238d

0x99fce493ded78e271243f17c385800d6686d238dExplorer
also a agent
Inbound volume
$2.01
Last 7d vs prior 7d
Settlements
3
Last 7d vs prior 7d
2
Distinct counterparties

Chains: Base (46)

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
0x3a72…d743$18.62$0.004336d agoGraph
0x6fcd…d4c6$0.00$2.01362d agoGraph

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

Data quality

90% of observed volume is with a single counterparty.

Organic volume $20.62 of $20.62 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x99fc…238d0x3a72…d743Base$0.10100%Route unknown36d ago0x974110…f417f8
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0xb13783…2798c9
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x407417…d179db
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x9a8487…d96502
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x416f29…81135d
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x9e9ad2…2b4f97
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x416f3a…0e43cf
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0xfbbd68…c98a3e
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0xc56179…52644d
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x8f06ab…c5822b
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x0123e5…a12835
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x63ff60…b59743
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0xf92eb7…30074e
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x8a18cb…689abb
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x517825…0d3ffa
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0xe3a3c2…4532a4
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x4c11f6…4a4e0e
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x59d374…d73d80
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0xa91af3…1917d7
0x99fc…238d0x3a72…d743Base$0.001100%Route unknown47d ago0x2009e7…af1a43
0x99fc…238d0x3a72…d743Base$0.10100%Route unknown49d ago0x70a130…7c5d40
0x99fc…238d0x3a72…d743Base$0.10100%Route unknown49d ago0xb2176f…8b0c59
0x99fc…238d0x3a72…d743Base$0.10100%Route unknown49d ago0xced8fb…52e49d
0x99fc…238d0x3a72…d743Base$0.10100%Route unknown50d ago0x040502…1eedf9
0x99fc…238d0x3a72…d743Base$0.10100%Route unknown50d ago0x3a0aa3…8e3cec

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x99fc…238d's payment record before paying it over the free read API. No key, no account.

GET www.roundhouse.studio/api/v0/merchants/0x99fce493ded78e271243f17c385800d6686d238d

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: 0x99fce493ded78e271243f17c385800d6686d238d

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0x99fce493ded78e271243f17c385800d6686d238d'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x99fce493ded78e271243f17c385800d6686d238d/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.