x402 merchant
Kertivo Shield (full)$0.005 / callpaycheck.hectichustle.workers.dev ↗
BaseUsdcSecurityAddress-poisoningFull-history

Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recent Base USDC transfers; v2 page fallback) so coverage is usually the sender's full Base USDC history. Body {from, to}. Not charged if the index is down. Cheap partial/RPC tier: POST /address/check ($0.001).

MerchantReport

0x509e…9ede

0x509e55c4f898b43c856fb0e51048b1b7bfbc9edeExplorer
Received
$1.49↓ 78%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
70↑ 118%
Last 7d vs prior 7d
6
Distinct counterparties
Over the whole indexed history

Received $1.49 of the $833.92M Roundhouse has indexed across 1,300,305 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (80)

Funds flow over time

Activity

AprMayJunJulAugSepOct
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xfc1e…279a$0.00$2.0022d agoGraph
0x9d42…ece9$0.00$0.44654h agoGraph
0x8b85…2068$0.00$0.0625d agoGraph
0xec2a…d034$0.00$0.0362d agoGraph
0xc9c7…1670$0.00$0.03418h agoGraph
0xa1d1…1978$0.00$0.00115d agoGraph

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

Data quality

78% of observed volume is with a single counterparty, in all 80 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x9d42…ece90x509e…9edeBase$0.001100%coinbase4d ago0xe63ff7…44f4fe
0x9d42…ece90x509e…9edeBase$0.05100%coinbase4d ago0x356749…b10bd8
0xec2a…d0340x509e…9edeBase$0.002100%coinbase4d ago0x4cf3d0…c8dc6d
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x70fe1c…6e4ade
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0xb3d137…217a48
0xa1d1…19780x509e…9edeBase$0.001100%coinbase5d ago0xb31060…6b00a6
0x9d42…ece90x509e…9edeBase$0.001100%coinbase5d ago0x1fe376…a49b64
0x9d42…ece90x509e…9edeBase$0.002100%coinbase5d ago0x028914…578275
0x9d42…ece90x509e…9edeBase$0.01100%coinbase5d ago0x394090…ec288e
0x9d42…ece90x509e…9edeBase$0.002100%coinbase5d ago0x168014…738c93
0x9d42…ece90x509e…9edeBase$0.01100%coinbase5d ago0xbe432b…aacfea
0x9d42…ece90x509e…9edeBase$0.002100%coinbase5d ago0xeada99…4aa676
0x9d42…ece90x509e…9edeBase$0.001100%coinbase5d ago0x1ccc3d…5b4fee
0x9d42…ece90x509e…9edeBase$0.001100%coinbase5d ago0xcc9bc2…f46a98
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0xb9d655…c5f6e2
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x9fceb7…412f75
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x72788d…b98099
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x9d5422…813b27
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x659911…4f1367
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x9b4cf5…81a2a0
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0xb79e95…debdc0
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0xb2b74c…ee8847
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0xe919ad…0ed6ce
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x5aad6d…c9fb00
0x9d42…ece90x509e…9edeBase$0.005100%coinbase5d ago0x65371b…ba6716

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x509e…9ede's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x509e55c4f898b43c856fb0e51048b1b7bfbc9ede

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: 0x509e55c4f898b43c856fb0e51048b1b7bfbc9ede

curl -s 'https://api.roundhouseai.io/v0/merchants/0x509e55c4f898b43c856fb0e51048b1b7bfbc9ede'
curl -s 'https://api.roundhouseai.io/v0/entities/0x509e55c4f898b43c856fb0e51048b1b7bfbc9ede/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.