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↑ 1162%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
130→ 0%
Last 7d vs prior 7d
23
Distinct counterparties
Over the whole indexed history

Received $4.96 of the $3059.45M Roundhouse has indexed across 1,397,037 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$2.45557d agoGraph
0x1298…486f$0.00$1.004151d agoGraph
0x5160…1147$0.00$0.4675d agoGraph
0x254a…d091$0.00$0.251151d agoGraph
0x5c57…a524$0.00$0.18666d agoGraph
0xd748…ea7c$0.00$0.13214d agoGraph
0x9045…0b82$0.00$0.12452d agoGraph
0x9067…0982$0.00$0.11122d 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
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0x883d64…971a79
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x40ea5f…e81b97
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0xcd5069…9c72ee
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0xa317b2…73c606
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0x47fdc5…6634cc
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0xbf3872…96f78c
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0xbcf5b3…d97695
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0x74fb27…a6dddd
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0xb833fd…636fa8
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0x4ddd3b…bfa67c
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0x97f62d…cee04a
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0x7174f4…9826f7
0xe1f8…0b350x487b…5e90BaseBase$0.002100%payAI40d ago0xeea97c…dd08e0
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x9c0bcd…40782e
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0xe65bc5…2d709a
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x872925…b33e52
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0xeeec2e…ef99d4
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x7cbc0d…954e09
0xf823…f6eb0x487b…5e90BaseBase$0.04100%coinbase41d ago0xf02124…731c3c
0xe1f8…0b350x487b…5e90BaseBase$0.03100%coinbase52d ago0x5557b2…e14df8
0xe1f8…0b350x487b…5e90BaseBase$0.04100%coinbase52d ago0x73271a…ae0eeb
0xe1f8…0b350x487b…5e90BaseBase$0.04100%coinbase52d ago0x31f5b3…4a8fdd
0xe1f8…0b350x487b…5e90BaseBase$0.04100%coinbase52d ago0xf2dd3b…16c0ba
0xe1f8…0b350x487b…5e90BaseBase$0.04100%coinbase52d ago0x35ed23…51d9ae
0xe1f8…0b350x487b…5e90BaseBase$0.04100%payAI52d ago0x70a82e…2571c7

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.