Roundhouse

Filtered to Base Sepolia where marked. The headline figures, charts and heatmap cover all listed chains.

x402 facilitatorBaseUnattributed

0xef4f…78ac

1 relayer wallet · relayer observed on-chain

Txs relayed (lifetime)
10,639
Bars: last 90 days
Settled (182d)
$6.55
Bars: last 90 days
Buyers
5
Distinct, last 182d
Sellers
8
Distinct, last 182d
—
Share of x402 (est)
Sampled 30-day estimate
1d ago
Last seen

Settled volume, last 182 days

$6.55 total

Settlements relayed, last 182 days

589 total

Settlement activity

182 days, every settlement counted
MayJunJulAugSepOctNov
LessMore

Every settlement attributed to this facilitator, per day, across its whole relayer pool. Click a day to see them in the ledger.

Settles most often for

CounterpartyPaid via itReceived via itSettlementsLast
0xe33a…92e2$6.52$0.0057050d agoGraph
0x4020…0003$0.00$6.1834050d agoGraph
0x1c47…a9f6$0.00$0.1918950d agoGraph
0x7e42…86e3$0.00$0.132670d agoGraph
0xef4f…78ac$0.00$0.011871d agoGraph
0x04a0…0c19$0.01$0.00656d agoGraph
0xcfc1…b442$0.00$0.01275d agoGraph
0x78b3…8bf5$0.01$0.00162d agoGraph

The wallets this facilitator most often relays settlements for, over its recent attributed window.

Settlements relayedBase Sepolia only

Open in the ledger, filtered
Payer PayeeChainAmountx402RouteAgeTxn hash
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac85d ago0x340254…6bacbf
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac85d ago0xff8c39…fd555a
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac85d ago0x20754f…75230c
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac85d ago0x7f6ed8…5af349
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac85d ago0x0ca283…2fc1fe
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac86d ago0xf85480…57f326
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac86d ago0xa3a2b9…a9e51d
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0xcc5758…1249c9
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0xe8d860…b6139c
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0x68ea1f…ae5233
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac86d ago0x315ffc…0e3dba
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0xc26d6c…a90997
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0xf3d12b…e3fbf3
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac86d ago0xa351ff…6b0852
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0xf0e55a…e801a6
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0x50d454…6b97ea
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac86d ago0xc1466a…2ecc29
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0x16e08a…4fd21a
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac86d ago0x796087…350d9e
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac86d ago0x8168c8…d3ffc4
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00150%0xef4f…78ac86d ago0x48d21e…d1fb48
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00550%0xef4f…78ac86d ago0x03187b…24ccd9
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac90d ago0x2da5ff…498b0c
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac90d ago0xef13c6…16dc90
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac90d ago0x4034b2…7ba522

Relayer wallets (gas sponsors)

WalletTxs relayedGas floatPayersPayees
0xef4f…78ac 10,6390.0041 ETH——

Txs relayed = the wallet's on-chain transaction count (fact). Settled volume is an exact sum of the settlements we hold for this operator over 182 days. Payers/payees and share are from sampled 30-day discovery windows (estimates) — a share needs a site-wide denominator, which lives only on /stats. A facilitator typically rotates settlements across a wallet pool and keeps each on a thin, topped-up gas float. Every figure on this page covers the 1 attribution value that resolve to this operator, not just its group key.

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will read 0xef4f…78ac's settlement record over the free read API. No key, no account.

GET api.roundhouseai.io/v0/transactions?via=0xef4f6abbc1cb87aea6cd86b5a4019fc6599178ac

This relayer has no named operator in the facilitator registry yet, so it is identified by its wallet.

Open skill.md
Show the prompt
Using Roundhouse, tell me what this x402 facilitator actually relays: volume, who it
settles for, and how steady it has been.

  Facilitator: 0xef4f…78ac

curl -s 'https://api.roundhouseai.io/v0/transactions?via=0xef4f6abbc1cb87aea6cd86b5a4019fc6599178ac&limit=100'
curl -s 'https://api.roundhouseai.io/v0/facilitators'

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://preview.roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://preview.roundhouseai.io/skill.md first — it is the whole procedure.