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 $3058.83M Roundhouse has indexed across 1,396,904 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
0xec2a…d0340x487b…5e90BaseBase$0.005100%coinbase27d ago0xaddba6…17915d
0xec2a…d0340x487b…5e90BaseBase$0.01100%coinbase27d ago0xbb598e…feb30c
0x9897…e0420x487b…5e90BaseBase$0.004100%payAI27d ago0x1bf204…c4c8cf
0xe1f8…0b350x487b…5e90BaseBase$0.01100%coinbase27d ago0x30a61d…7ea024
0xe1f8…0b350x487b…5e90BaseBase$0.005100%coinbase27d ago0xad988d…043b05
0xe1f8…0b350x487b…5e90BaseBase$0.03100%coinbase27d ago0x395c85…60ace9
0xe1f8…0b350x487b…5e90BaseBase$0.10100%coinbase27d ago0x0764fe…6323c5
0xa1d1…19780x487b…5e90BaseBase$0.004100%payAI28d ago0x55aa0c…574b42
0xa1d1…19780x487b…5e90BaseBase$0.001100%coinbase28d ago0x3f6db5…45c76a
0xa1d1…19780x487b…5e90BaseBase$0.007100%coinbase28d ago0x3f2d3b…6c5307
0xe1f8…0b350x487b…5e90BaseBase$0.36100%coinbase29d ago0x1635b5…b145dd
0xe1f8…0b350x487b…5e90BaseBase$0.05100%coinbase29d ago0x3d506f…999365
0x0ffa…daaf0x487b…5e90BaseBase$0.001100%coinbase31d ago0xf1a019…96796c
0x6a0b…45180x487b…5e90BaseBase$0.004100%coinbase31d ago0x2586f6…7f98ea
0x6a0b…45180x487b…5e90BaseBase$0.004100%coinbase31d ago0xd76f89…2db212
0x6a0b…45180x487b…5e90BaseBase$0.007100%coinbase31d ago0xeff7e2…57e231
0x6a0b…45180x487b…5e90BaseBase$0.001100%coinbase31d ago0xa47324…dcbf90
0x6a0b…45180x487b…5e90BaseBase$0.004100%payAI31d ago0x463705…b94144
0x6a0b…45180x487b…5e90BaseBase$0.004100%coinbase31d ago0x06befb…d683b3
0x6a0b…45180x487b…5e90BaseBase$0.004100%payAI31d ago0x4b06bc…044eb7
0x6a0b…45180x487b…5e90BaseBase$0.004100%payAI31d ago0xf7b009…c70865
0x6a0b…45180x487b…5e90BaseBase$0.004100%payAI31d ago0xc52b96…7d1c32
0xec2a…d0340x487b…5e90BaseBase$0.004100%payAI31d ago0x573a86…b9b611
0xec2a…d0340x487b…5e90BaseBase$0.004100%payAI31d ago0xa7a5e5…c1eb79
0xec2a…d0340x487b…5e90BaseBase$0.004100%coinbase31d ago0x556773…b9f021

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.