x402 merchant
Open Source Filings$0.05 / callapi.osf-master-server.com
Entity verificationKYCKYBCounterparty due diligenceBusiness registry

Entity and counterparty verification by identifier or name. Resolves US healthcare providers (CMS NPI), legal entities (GLEIF LEI), US banks (FDIC), SEC filers (EDGAR CIK or ticker), and US tax exempt orgs (IRS EIN). Returns legal name, status, jurisdiction, identifiers, and a provenance URL to the official source. For KYC, KYB, due diligence, and onboarding agent workflows.

MerchantReport

0x72f6…396c

0x72f62de8b70d6cfa8cc2df6f21f243f289f3396cExplorer
Inbound volume
$13.75↓ 33%
Last 7d vs prior 7d
Settlements
331↓ 33%
Last 7d vs prior 7d
6
Distinct counterparties

Chains: Base (331)

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
0x9f73…72c9$0.00$11.752925d agoGraph
0x7e57…2f09$0.00$1.412935d agoGraph
0x4545…b792$0.00$0.24340d agoGraph
0xda23…200f$0.00$0.20439d agoGraph
0xf5a6…0c80$0.00$0.10234d agoGraph
0x2a37…b949$0.00$0.05131d 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 observed activity.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x9f73…72c90x72f6…396cBase$0.05100%coinbase5d ago0xfa205b…7eafeb
0x9f73…72c90x72f6…396cBase$0.05100%coinbase5d ago0x2f02ef…8c0c86
0x9f73…72c90x72f6…396cBase$0.001100%coinbase5d ago0x6f95ee…ef746c
0x9f73…72c90x72f6…396cBase$0.05100%coinbase6d ago0x22a0d2…58e115
0x9f73…72c90x72f6…396cBase$0.05100%coinbase6d ago0x0c1dfb…2d7b6d
0x9f73…72c90x72f6…396cBase$0.001100%coinbase6d ago0x61c61d…1fc923
0x9f73…72c90x72f6…396cBase$0.05100%coinbase7d ago0xbf34fa…e8fbdc
0x9f73…72c90x72f6…396cBase$0.05100%coinbase7d ago0x0d7e35…63bf76
0x9f73…72c90x72f6…396cBase$0.001100%coinbase7d ago0xc388a5…c7cd36
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown8d ago0xdaa268…1dbca6
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown8d ago0xc1feac…8b1284
0x9f73…72c90x72f6…396cBase$0.001100%coinbase8d ago0xf9c03a…805982
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown9d ago0xd9f023…2438f3
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown9d ago0xaac920…548b96
0x9f73…72c90x72f6…396cBase$0.001100%Route unknown9d ago0x421b4e…4b5dd0
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown14d ago0xf7eee8…c6aec2
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown15d ago0x7a7672…df5b2f
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown15d ago0x280b38…285d14
0x9f73…72c90x72f6…396cBase$0.001100%Route unknown15d ago0x2a58ab…8ac957
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown16d ago0xd969b5…cb1beb
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown16d ago0x74679c…30b56b
0x9f73…72c90x72f6…396cBase$0.001100%Route unknown16d ago0x93e446…f8e6d9
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown17d ago0x0f256b…3f1159
0x9f73…72c90x72f6…396cBase$0.05100%Route unknown17d ago0xfbeafb…2be7dd
0x9f73…72c90x72f6…396cBase$0.001100%Route unknown17d ago0xa1d019…14c729

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x72f6…396c's payment record before paying it over the free read API. No key, no account.

GET www.roundhouse.studio/api/v0/merchants/0x72f62de8b70d6cfa8cc2df6f21f243f289f3396c

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: 0x72f62de8b70d6cfa8cc2df6f21f243f289f3396c

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0x72f62de8b70d6cfa8cc2df6f21f243f289f3396c'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x72f62de8b70d6cfa8cc2df6f21f243f289f3396c/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.