x402 merchant
Preflight$0.05 / callpreflight402.com ↗
DependenciesNpmPypiCratesSecurity

Call before installing packages suggested by a language model. Returns, for each npm or PyPI package name, whether it actually exists in the registry, whether it is deprecated or yanked, and — when the name is not found — the closest real package names. Catches hallucinated dependencies (slopsquatting) before an agent installs them. Never inspects package contents and never returns a safety verdict.

MerchantReport

0xb9db…a607

0xb9db3966c7f18283624c97e860a84cef7f9ba607Explorer
Received
$1.80↓ 100%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
27↓ 100%
Last 7d vs prior 7d
13
Distinct counterparties
Over the whole indexed history

Received $1.80 of the $3064.22M Roundhouse has indexed across 1,399,289 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (27)

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x48da…d4a2$0.00$0.50742d agoGraph
0x72c5…159b$0.00$0.25527d agoGraph
0x6a0b…4518$0.00$0.25332d agoGraph
0xa1d1…1978$0.00$0.1026d agoGraph
0xc9c7…1670$0.00$0.10240d agoGraph
0x6dbe…3610$0.00$0.10142d agoGraph
0xd501…43f7$0.00$0.10142d agoGraph
0x3de4…33a9$0.00$0.10142d agoGraph

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

Data quality

No concentration or self-dealing patterns detected in all 27 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x48da…d4a20xb9db…a607BaseBase$0.10100%coinbase59d ago0xa99b94…144455
0x48da…d4a20xb9db…a607BaseBase$0.05100%coinbase59d ago0xcfba76…196358

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xb9db…a607's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xb9db3966c7f18283624c97e860a84cef7f9ba607

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: 0xb9db3966c7f18283624c97e860a84cef7f9ba607

curl -s 'https://api.roundhouseai.io/v0/merchants/0xb9db3966c7f18283624c97e860a84cef7f9ba607'
curl -s 'https://api.roundhouseai.io/v0/entities/0xb9db3966c7f18283624c97e860a84cef7f9ba607/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.