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
1h 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…78ac102d ago0xa75b80…1fe9b7
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac102d ago0x782e50…0f16bc
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac102d ago0x8b5772…ddc193
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x471b88…f8cb4a
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x1dd6d8…4df04d
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0xe3e182…097c02
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0xbad18d…2326a6
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x9f6b36…5e09fb
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0xc2c300…9d4459
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x87eff6…b19948
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0x4c46c2…3db299
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0x2dcc44…62a7f4
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x540db3…69f491
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0xd9b2ad…2cce26
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0xdf0a7b…0d5950
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0xf101fe…3f7a35
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x165ae4…5804e8
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0xdd6044…f9b75f
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0x2c5c33…24279c
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac103d ago0xfec394…bf1c13
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x4904ca…a204a8
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x4539b1…670a5e
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0xda4dec…c848a1
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x08cc60…c7b3e3
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac103d ago0x4cd5af…a3db96

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.