x402 merchant
Penny x402 Endpoint Audit$0.01 / callpenny-x402-endpoint-audit.penny-mcamp.workers.dev ↗
x402PaymentsAuditBase-usdcDiscovery

Fetch any public URL and report whether its HTTP 402 challenge is a schema-valid x402 v2 PaymentRequired, payable in Base USDC, and catalog-ready (bazaar discovery declaration + facilitator support).

MerchantReport

0x8b85…2068

0x8b8543a9566b7c75e5484ce4385d76879eda2068Explorer
Received
$0.06↓ 48%
Last 7d vs prior 7d
Paid out
$2.46↑ 629%
Last 7d vs prior 7d
Settlements
42↓ 84%
Last 7d vs prior 7d
19
Distinct counterparties
Over the whole indexed history

Received $0.06 of the $846.70M Roundhouse has indexed across 1,330,126 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (39)

Funds flow over time

Activity

MayJunJulAugSepOct
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x5da4…6c70$1.00$0.0013d agoGraph
0x4aab…df26$1.00$0.00117d agoGraph
0x4c3b…7ac3$0.10$0.00215d agoGraph
0x7f4c…9d53$0.09$0.001513d agoGraph
0x509e…9ede$0.06$0.00213d agoGraph
0xad98…5a23$0.05$0.00115d agoGraph
0x7706…4121$0.05$0.00115d agoGraph
0xb075…59d8$0.04$0.00215d agoGraph

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

Data quality

3 self-dealing settlements (payer = payee) observed, in all 39 observed settlements.

Organic volume $2.46 of $2.49 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x4e81…09f40x8b85…2068Base$0.01100%payAI2d ago0x3d4161…45babb
0x8b85…20680x5da4…6c70Base$1.0070%0x35ad…204d3d ago0xd92cf0…2bb7a7
0x8b85…20680xf7ee…67cdBase$0.02100%payAI3d ago0x37a4eb…9a68f8
0xa1d1…19780x8b85…2068Base$0.01100%payAI6d ago0xd24017…2b298e
0x54e1…f4e00x8b85…2068Base$0.01100%payAI7d ago0x562408…153e0c
0x8b85…20680x5288…5a1dBase$0.001100%coinbase12d ago0x266431…ece3c2
0x8b85…20680x509e…9edeBase$0.05100%coinbase13d ago0x471227…37a2d2
0x8b85…20680x1584…e2dbBase$0.001100%coinbase13d ago0x91cfcd…86f9bb
0x8b85…20680x7f4c…9d53Base$0.02100%coinbase13d ago0xcde1f0…3c8f26
0x8b85…20680x7f4c…9d53Base$0.01100%coinbase13d ago0xa048b7…5c8193
0x8b85…20680x7f4c…9d53Base$0.01100%coinbase13d ago0x6111a9…9d61c9
0x8b85…20680x7f4c…9d53Base$0.005100%coinbase13d ago0xe21b28…9fd802
0x8b85…20680x7f4c…9d53Base$0.005100%coinbase13d ago0xeca843…91080c
0x8b85…20680x7f4c…9d53Base$0.005100%coinbase13d ago0x2cda77…6f90bb
0x8b85…20680x7f4c…9d53Base$0.002100%coinbase13d ago0xa3b8d3…4feebb
0x8b85…20680x7f4c…9d53Base$0.005100%coinbase13d ago0x57300e…e65cce
0x8b85…20680x7f4c…9d53Base$0.01100%coinbase13d ago0x43b244…679b86
0x8b85…20680x7f4c…9d53Base$0.01100%coinbase13d ago0x8c1070…c4f02a
0x8b85…20680x7f4c…9d53Base$0.001100%coinbase13d ago0x1679eb…2d2dc4
0x8b85…20680x7f4c…9d53Base$0.002100%coinbase13d ago0xe4d6db…44ac67
0x8b85…20680x7f4c…9d53Base$0.002100%coinbase13d ago0xb32818…ce4e99
0x8b85…20680x7f4c…9d53Base$0.001100%coinbase13d ago0x42905f…7e3167
0x8b85…20680x7f4c…9d53Base$0.005100%coinbase14d ago0x1f1bf7…a2db4b
0x8b85…20680x509e…9edeBase$0.01100%coinbase14d ago0x911386…a49a81
0x8b85…20680xad98…5a23Base$0.05100%coinbase15d ago0xdd7246…859623

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x8b85…2068's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x8b8543a9566b7c75e5484ce4385d76879eda2068

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: 0x8b8543a9566b7c75e5484ce4385d76879eda2068

curl -s 'https://api.roundhouseai.io/v0/merchants/0x8b8543a9566b7c75e5484ce4385d76879eda2068'
curl -s 'https://api.roundhouseai.io/v0/entities/0x8b8543a9566b7c75e5484ce4385d76879eda2068/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.