x402 merchant
Barker$0.001 / callmcp.barker.money

Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'.

MerchantReport

0x83f1…4c9f

0x83f15f5bea445109e255ab82622fbdfecd1e4c9fExplorer
Received
$0.33↓ 30%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
171↓ 30%
Last 7d vs prior 7d
15
Distinct counterparties
Over the whole indexed history

Received $0.33 of the $258.30M Roundhouse has indexed across 712,778 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (171)

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
0xa9b1…ace7$0.00$0.143053d agoGraph
0x1253…90ca$0.00$0.1311723h agoGraph
0x6777…3986$0.00$0.03729d agoGraph
0x3ed9…430e$0.00$0.02253d agoGraph
0xa19f…accc$0.00$0.01114d agoGraph
0xc533…2d7a$0.00$0.002224d agoGraph
0x6446…e6d5$0.00$0.002231d agoGraph
0xbcf8…c83a$0.00$0.002254d 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 171 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x54e1…f4e00x83f1…4c9fBase$0.001100%coinbase8m ago0xae5703…b43317
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase23h ago0x0a3ab6…feea4a
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase23h ago0x46cd00…84eb8f
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase23h ago0xbc2b75…580190
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase23h ago0xbba7f8…1b256a
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase1d ago0x1498d1…007163
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase1d ago0x3dd09c…0721c8
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase1d ago0xd49997…2a3247
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase1d ago0x11e051…92aa2d
0x2e8d…c32d0x83f1…4c9fBase$0.001100%coinbase2d ago0xdff0a9…8810c3
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase2d ago0x0534e7…04bbe6
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase2d ago0x073344…15d95a
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase2d ago0xf4acf7…43a0d8
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase2d ago0x1292c2…7a6b6c
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase3d ago0xc35181…0a8d1d
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase3d ago0xa89796…d22639
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase3d ago0x9764e3…463190
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase3d ago0xc6b0f3…0dc715
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase4d ago0xe5506f…73a797
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase4d ago0xdf7530…4a60d1
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase4d ago0x618bea…6515b2
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase4d ago0xa94247…78626c
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase5d ago0x300b24…d9f434
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase5d ago0xdcf169…c0b5d6
0x1253…90ca0x83f1…4c9fBase$0.001100%coinbase5d ago0x2ea953…77969d

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x83f1…4c9f's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x83f15f5bea445109e255ab82622fbdfecd1e4c9f

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: 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f

curl -s 'https://api.roundhouseai.io/v0/merchants/0x83f15f5bea445109e255ab82622fbdfecd1e4c9f'
curl -s 'https://api.roundhouseai.io/v0/entities/0x83f15f5bea445109e255ab82622fbdfecd1e4c9f/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.