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)
10,954
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
14m 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…78ac90d ago0x7dae41…c18395
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac90d ago0xee6624…ba141b
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac91d ago0x334aad…96d121
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac92d ago0x234d7a…94ef7b
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac92d ago0xf6be85…e95110
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac92d ago0x4af8d1…c861f0
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac92d ago0x25c9fe…b5eafc
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac92d ago0xcf08fc…2ffbc4
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac97d ago0xbe00a9…44012e
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac97d ago0xda3ae8…7a0115
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac97d ago0x286ccf…c263b0
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00150%0xef4f…78ac97d ago0x122056…baf8f9
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0xb579f8…4ee92f
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac99d ago0x54f84f…94b4b4
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0xd5c131…2ffc04
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac99d ago0x0249c0…5cf790
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0xd469d4…7f6fda
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac99d ago0xf1653d…eea5d9
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0x6f79cb…ce97f3
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac99d ago0x4286a5…566b34
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0x74df66…3531f5
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0x181d0f…75e224
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac99d ago0x211b1e…70749f
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac99d ago0x9631b7…e43982
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac99d ago0xeb3c53…d1ee47

Relayer wallets (gas sponsors)

WalletTxs relayedGas floatPayersPayees
0xef4f…78ac 10,9540.0063 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.