x402 merchant
Market Calendar API$0.01 / callmarket-calendar-api.onrender.com ↗
FinanceVixVolatilityExpiration

Returns the next VIX futures and options expiration dates (Wednesday rule, holiday-adjusted).

MerchantReport

0xc577…7d23

0xc577c27d10767abfc10d867b443577fe296e7d23Explorer
Received
$0.08↑ 307%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
18↓ 50%
Last 7d vs prior 7d
5
Distinct counterparties
Over the whole indexed history

Received $0.08 of the $846.93M Roundhouse has indexed across 1,330,416 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (18)

Funds flow over time

Activity

MayJunJulAugSepOct
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xec2a…d034$0.00$0.0336d agoGraph
0x1114…2717$0.00$0.02127d agoGraph
0x7722…5e4a$0.00$0.0112d agoGraph
0xc9c7…1670$0.00$0.0116d agoGraph
0xa1d1…1978$0.00$0.0116d 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 18 observed settlements.

Recent activity

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xc577…7d23's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xc577c27d10767abfc10d867b443577fe296e7d23

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: 0xc577c27d10767abfc10d867b443577fe296e7d23

curl -s 'https://api.roundhouseai.io/v0/merchants/0xc577c27d10767abfc10d867b443577fe296e7d23'
curl -s 'https://api.roundhouseai.io/v0/entities/0xc577c27d10767abfc10d867b443577fe296e7d23/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.