x402 merchant
DEX Data & Agent Utilities$0.03 / callx402.donnyautomation.com
TreasuryYield-curveRatesMacroFixed-income

US Treasury par yield curve, every constant maturity from 1 month to 30 years for a published business day. Returns curve[] with tenor, months and percent, spreads (2s10s, 3m10y, 5s30s) and an explicit inversion flag - the real question is whether the curve is inverted, not what fourteen numbers are. A tenor Treasury did not publish is null, never zero. Pass ?latest=1 OR ?date=YYYY-MM-DD, not both. Errors: 400 conflicting_params|bad_latest|bad_date, 404 no_curve with the available range.

MerchantReport

0x2740…a96f

0x2740651e046c59ab2a6510401140643292d3a96fExplorer
Received
$3.05↑ 5.9%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
290↑ 14%
Last 7d vs prior 7d
26
Distinct counterparties
Over the whole indexed history

Received $3.05 of the $258.47M Roundhouse has indexed across 713,069 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (290)

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
0xf7a4…6db1$0.00$1.051041d agoGraph
0xd3b4…2736$0.00$0.8910243d agoGraph
0xa19f…accc$0.00$0.2461d agoGraph
0xc59e…98dc$0.00$0.222225d agoGraph
0xc9c7…1670$0.00$0.2194d agoGraph
0x8d2a…7d37$0.00$0.141417d agoGraph
0x35ed…3e59$0.00$0.0444d agoGraph
0x3a3f…f3a7$0.00$0.03313d 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 290 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xf7a4…6db10x2740…a96fBase$0.05100%coinbase1d ago0xa9581f…aabc15
0xa19f…accc0x2740…a96fBase$0.05100%coinbase1d ago0xaf6594…8d9745
0xa19f…accc0x2740…a96fBase$0.03100%coinbase1d ago0x623e12…48884f
0xc9c7…16700x2740…a96fBase$0.01100%coinbase4d ago0xd58b2b…2e718e
0x35ed…3e590x2740…a96fBase$0.01100%coinbase4d ago0xaceb91…347482
0x35ed…3e590x2740…a96fBase$0.01100%coinbase4d ago0xc4b406…65a8fb
0x35ed…3e590x2740…a96fBase$0.01100%coinbase4d ago0x42a6cd…93c97c
0x35ed…3e590x2740…a96fBase$0.01100%coinbase4d ago0xc077a7…107aa9
0xc9c7…16700x2740…a96fBase$0.01100%coinbase6d ago0x11c1a9…c87995
0x7dd8…17d20x2740…a96fBase$0.01100%coinbase7d ago0x047e68…c1382b
0xc9c7…16700x2740…a96fBase$0.05100%coinbase7d ago0x123a3a…d5f0af
0xa19f…accc0x2740…a96fBase$0.05100%coinbase7d ago0x3a438d…0c81a1
0xa19f…accc0x2740…a96fBase$0.03100%coinbase7d ago0x8b25f0…612e37
0x8481…81110x2740…a96fBase$0.01100%coinbase10d ago0x6bd9d0…470e17
0x902d…82560x2740…a96fBase$0.01100%coinbase11d ago0x935cf5…6d8b43
0x3a3f…f3a70x2740…a96fBase$0.01100%coinbase13d ago0xcc9de9…094322
0x01f9…84d30x2740…a96fBase$0.01100%coinbase13d ago0x64791e…c7237a
0xc059…8b5e0x2740…a96fBase$0.01100%coinbase13d ago0x1616ed…778e35
0xfa1c…65d10x2740…a96fBase$0.01100%coinbase14d ago0x444a25…1c0927
0xc9c7…16700x2740…a96fBase$0.05100%coinbase14d ago0xd52779…3bf91d
0xc9c7…16700x2740…a96fBase$0.03100%coinbase14d ago0x79ae9a…4c6322
0xa19f…accc0x2740…a96fBase$0.05100%coinbase14d ago0x52af36…b113c4
0xa19f…accc0x2740…a96fBase$0.03100%coinbase15d ago0xadecb5…ecd2c3
0xc9c7…16700x2740…a96fBase$0.01100%coinbase17d ago0xcf0734…20fe20
0xfa1c…65d10x2740…a96fBase$0.01100%coinbase17d ago0xb46bfb…3a3565

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x2740…a96f's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x2740651e046c59ab2a6510401140643292d3a96f

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: 0x2740651e046c59ab2a6510401140643292d3a96f

curl -s 'https://api.roundhouseai.io/v0/merchants/0x2740651e046c59ab2a6510401140643292d3a96f'
curl -s 'https://api.roundhouseai.io/v0/entities/0x2740651e046c59ab2a6510401140643292d3a96f/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.