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
0xec2a…d0340x487b…5e90BaseBase$0.007100%coinbase31d ago0xb165bb…5a5ebd
0xa19f…accc0x487b…5e90BaseBase$0.004100%payAI32d ago0x376402…af6159
0xa19f…accc0x487b…5e90BaseBase$0.004100%payAI33d ago0xf94e9d…3e299a
0xf107…b0c80x487b…5e90BaseBase$0.004100%payAI34d ago0x6673c9…81010b
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0x73e277…c68274
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0x79e344…2cfc15
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0xb5838a…b742bc
0xf107…b0c80x487b…5e90BaseBase$0.004100%payAI34d ago0x6c73b5…c4bd66
0xf107…b0c80x487b…5e90BaseBase$0.004100%payAI34d ago0xfd10d1…790b78
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0xe68e25…2342b8
0xf107…b0c80x487b…5e90BaseBase$0.004100%payAI34d ago0x8c21b5…ddcace
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0xb70c47…47b3f8
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0x2e0e9a…126d4f
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase34d ago0x99d19a…7c2b55
0xf107…b0c80x487b…5e90BaseBase$0.004100%payAI34d ago0xba9343…6b69c7
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase35d ago0x56f929…d66cd5
0xf107…b0c80x487b…5e90BaseBase$0.004100%payAI35d ago0xc7da22…bbdef2
0xf107…b0c80x487b…5e90BaseBase$0.004100%coinbase35d ago0x21ba70…0ceff0
0xe1f8…0b350x487b…5e90BaseBase$0.001100%coinbase36d ago0x12b24d…19fc5f
0x4c29…94940x487b…5e90BaseBase$0.004100%payAI37d ago0x9a65b8…708a2b
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x2efda2…05e5a5
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0xa6588b…99c161
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x02f543…0ad867
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x39b7ec…a7a048
0xe1f8…0b350x487b…5e90BaseBase$0.002100%coinbase40d ago0x666d8f…623d4c

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.