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 1,397,282 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$0.12453d 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

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.