x402 merchant
GasPaymastererc-4337SponsorshipBase

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the signed operation back here; we submit it. GET this URL?docs=1 for details. Quote valid 600s.

MerchantReport

0x487b…5e90

0x487b28a4fbba8cf46eb6e1d72e6959202bb75e90Explorer
Received
$4.96↑ 455%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
130↑ 11%
Last 7d vs prior 7d
23
Distinct counterparties
Over the whole indexed history

Received $4.96 of the $3053.48M Roundhouse has indexed across 1,395,044 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (130)

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xe1f8…0b35$0.00$2.45556d agoGraph
0x1298…486f$0.00$1.004150d agoGraph
0x5160…1147$0.00$0.4674d agoGraph
0x254a…d091$0.00$0.251150d agoGraph
0x5c57…a524$0.00$0.18665d agoGraph
0xd748…ea7c$0.00$0.13213d agoGraph
0x9045…0b82$0.00$0.12452d agoGraph
0x9067…0982$0.00$0.11121d 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 130 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xa19f…accc0x487b…5e90BaseBase$0.004100%coinbase4d ago0xece466…147f09
0xa19f…accc0x487b…5e90BaseBase$0.004100%coinbase4d ago0x30064d…3cc638
0x5160…11470x487b…5e90BaseBase$0.03100%coinbase4d ago0xca8d77…1d57bf
0x5160…11470x487b…5e90BaseBase$0.03100%coinbase4d ago0x6e1f92…a25fa4
0x5160…11470x487b…5e90BaseBase$0.08100%coinbase5d ago0x53bfc3…ab79ff
0x5160…11470x487b…5e90BaseBase$0.0870%0x585f…a3535d ago0x37df11…9cee06
0x5160…11470x487b…5e90BaseBase$0.08100%coinbase5d ago0xbc0244…265f56
0x5160…11470x487b…5e90BaseBase$0.08100%coinbase5d ago0x4ded5c…a7e386
0x5160…11470x487b…5e90BaseBase$0.08100%coinbase5d ago0x0baea5…6107e7
0x9a10…6c920x487b…5e90BaseBase$0.001100%coinbase6d ago0x8f10d6…7ccece
0xe1f8…0b350x487b…5e90BaseBase$0.005100%coinbase6d ago0x278933…f97692
0xe1f8…0b350x487b…5e90BaseBase$0.007100%coinbase6d ago0x4a6af3…b7c186
0xe1f8…0b350x487b…5e90BaseBase$0.003100%coinbase6d ago0xde4fd9…342976
0xe1f8…0b350x487b…5e90BaseBase$0.01100%coinbase7d ago0xce2d69…195b95
0xe1f8…0b350x487b…5e90BaseBase$0.005100%coinbase7d ago0xc9a9b5…968245
0x54e1…f4e00x487b…5e90BaseBase$0.001100%coinbase9d ago0xb692a9…f0f863
0xa1d1…19780x487b…5e90BaseBase$0.001100%coinbase10d ago0xdd559b…c9918d
0xa19f…accc0x487b…5e90BaseBase$0.004100%payAI11d ago0x6e1d8a…ee3d12
0xd748…ea7c0x487b…5e90BaseBase$0.05100%coinbase13d ago0x595690…3b3260
0xd748…ea7c0x487b…5e90BaseBase$0.09100%coinbase13d ago0x0dc4ee…ca224a
0x7722…5e4a0x487b…5e90BaseBase$0.001100%coinbase15d ago0x3e218c…5bc56a
0x6031…c2d10x487b…5e90BaseBase$0.005100%coinbase15d ago0x2108c4…7ed5b0
0x54e1…f4e00x487b…5e90BaseBase$0.007100%coinbase20d ago0x42acff…cb4d27
0x9067…09820x487b…5e90BaseBase$0.11100%coinbase21d ago0x42b52b…a6e672
0x3ed9…430e0x487b…5e90BaseBase$0.004100%payAI22d ago0x3084a2…decea5

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x487b…5e90's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x487b28a4fbba8cf46eb6e1d72e6959202bb75e90

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: 0x487b28a4fbba8cf46eb6e1d72e6959202bb75e90

curl -s 'https://api.roundhouseai.io/v0/merchants/0x487b28a4fbba8cf46eb6e1d72e6959202bb75e90'
curl -s 'https://api.roundhouseai.io/v0/entities/0x487b28a4fbba8cf46eb6e1d72e6959202bb75e90/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.