x402 merchant
Andromalius Security Audits$0.01 / callapi.andromalius.io ↗
x402SecurityAudit

Audit an x402 v2 payment challenge. Use when: Before signing a new or changed x402 payment requirement. Preview: https://api.andromalius.io/examples/challenge-audit. Buy: https://andromalius.io/buy. Safe client: https://andromalius.io/integrate/safe-client. Workflow: https://andromalius.io/workflows/agent-prepayment-policy. No arbitrary fetching or input retention. US business users 18+ only. Terms: https://andromalius.io/terms.

MerchantReport

0x2ff7…53c3

0x2ff7d9d400b27659f67efd9e43d779d2be5053c3Explorer
Received
$0.02
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
2
Last 7d vs prior 7d
2
Distinct counterparties
Over the whole indexed history

Received $0.02 of the $259.00M Roundhouse has indexed across 713,892 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (2)

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
0x902d…8256$0.00$0.01149d agoGraph
0xcdeb…608f$0.00$0.01159d agoGraph

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

Data quality

50% of observed volume is with a single counterparty, in all 2 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x902d…82560x2ff7…53c3Base$0.01100%coinbase49d ago0x42f02d…871bb1
0xcdeb…608f0x2ff7…53c3Base$0.01100%coinbase59d ago0x25e6ff…7be284

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x2ff7…53c3's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x2ff7d9d400b27659f67efd9e43d779d2be5053c3

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: 0x2ff7d9d400b27659f67efd9e43d779d2be5053c3

curl -s 'https://api.roundhouseai.io/v0/merchants/0x2ff7d9d400b27659f67efd9e43d779d2be5053c3'
curl -s 'https://api.roundhouseai.io/v0/entities/0x2ff7d9d400b27659f67efd9e43d779d2be5053c3/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.