x402 merchant
$0.50 / callapi.402.coffee ↗
Agent-paymentsx402ConformanceClient-testingAgent-certification

x402 client conformance — scam-resistance (entry). Opens a two-challenge test: pay a fair $0.10 control, refuse an over-priced $50 bait. Total $0.60.

MerchantReport

0xca75…bf3b

0xca758c922d8476c2cec49c6cc96a4eeba89fbf3bExplorer
Received
$18.25↓ 100%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
44↓ 100%
Last 7d vs prior 7d
16
Distinct counterparties
Over the whole indexed history

Received $18.25 of the $259.00M Roundhouse has indexed across 713,892 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (44)

Funds flow over time

Activity

MarAprMayJunJulAugSep
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x9952…6f34$0.00$8.00994d agoGraph
0x27ec…5803$0.00$2.30783d agoGraph
0x7e57…2f09$0.00$1.601059d agoGraph
0x01a6…1346$0.00$1.00277d agoGraph
0xe5c3…700f$0.00$1.00191d agoGraph
0x0fa7…55ad$0.00$1.00293d agoGraph
0x8345…5fd7$0.00$0.75288d agoGraph
0x4985…5ce2$0.00$0.50178d 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 44 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x7dd8…17d20xca75…bf3bBase$0.10100%coinbase7d ago0xc79607…d5ab4d
0xba0e…b0540xca75…bf3bBase$0.10100%coinbase14d ago0x794e6e…63067a
0x46e8…f39b0xca75…bf3bBase$0.25100%coinbase54d ago0xd777e5…c1d736
0x7e57…2f090xca75…bf3bBase$0.25100%coinbase59d ago0x943129…3a62f7
0x7e57…2f090xca75…bf3bBase$0.10100%coinbase60d ago0x5d998f…3b9001
0x7e57…2f090xca75…bf3bBase$0.25100%coinbase65d ago0xf44e36…db2672
0x7e57…2f090xca75…bf3bBase$0.10100%coinbase66d ago0x74a73b…2d8b70
0x7e57…2f090xca75…bf3bBase$0.10100%coinbase67d ago0x2c360d…de08fc
0x7e57…2f090xca75…bf3bBase$0.25100%coinbase67d ago0x7bc696…74f8fd
0x7e57…2f090xca75…bf3bBase$0.10100%coinbase68d ago0x2052d2…4bb2b0
0x7e57…2f090xca75…bf3bBase$0.10100%coinbase70d ago0x026e3e…b28b74
0x7e57…2f090xca75…bf3bBase$0.25100%coinbase71d ago0x723729…3c8a07
0x5263…c02b0xca75…bf3bBase$0.25100%coinbase77d ago0xf4dab8…f5c156
0x01a6…13460xca75…bf3bBase$0.50100%coinbase77d ago0xbeb789…2055ef
0x01a6…13460xca75…bf3bBase$0.50100%coinbase77d ago0x6099da…d9f5d2
0x7e57…2f090xca75…bf3bBase$0.10100%coinbase78d ago0x6183f7…f22c79
0x4985…5ce20xca75…bf3bBase$0.50100%coinbase78d ago0x0dc0ed…fd7d64
0x27ec…58030xca75…bf3bBase$0.10100%coinbase83d ago0x36af6a…9606cc
0x27ec…58030xca75…bf3bBase$0.10100%coinbase83d ago0x1ec5f4…4c457e
0x27ec…58030xca75…bf3bBase$0.50100%coinbase83d ago0x46ad84…ff37d0
0x27ec…58030xca75…bf3bBase$0.10100%coinbase83d ago0x2d1570…26251a
0x27ec…58030xca75…bf3bBase$0.50100%coinbase83d ago0x6c29a8…951fdc
0x27ec…58030xca75…bf3bBase$0.50100%coinbase83d ago0x549c6e…504961
0x27ec…58030xca75…bf3bBase$0.50100%coinbase83d ago0x6ad4e2…bccd29
0x9cc4…b1760xca75…bf3bBase$0.50100%coinbase85d ago0x719f6d…bf2ada

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xca75…bf3b's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xca758c922d8476c2cec49c6cc96a4eeba89fbf3b

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: 0xca758c922d8476c2cec49c6cc96a4eeba89fbf3b

curl -s 'https://api.roundhouseai.io/v0/merchants/0xca758c922d8476c2cec49c6cc96a4eeba89fbf3b'
curl -s 'https://api.roundhouseai.io/v0/entities/0xca758c922d8476c2cec49c6cc96a4eeba89fbf3b/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.