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…92e20x4020…0003Base SepoliaBase Sepolia$0.001570%0xef4f…78ac72d ago0xc04bab…2e9f1a
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.001570%0xef4f…78ac72d ago0x2a315a…d6fd0a
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.001570%0xef4f…78ac72d ago0xfcc74c…6cdc99
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.001570%0xef4f…78ac72d ago0x4a9f66…7dbda1
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.001570%0xef4f…78ac72d ago0xa38afe…19703a
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.001570%0xef4f…78ac72d ago0xf622dc…0ffe3e
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0xe61d2d…0d07e1
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0x6194b8…526385
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0x83f122…7c5d93
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0xab9243…a69d93
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0x2b2cef…0c8c9c
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0xb6c2c1…a13791
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0xf1a630…014658
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0xee1071…173441
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0x778775…a83bfa
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.002570%0xef4f…78ac72d ago0xe051ad…ee5a55
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac72d ago0xb96de9…f1b2f4
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac72d ago0x5761eb…919367
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac72d ago0xd360d1…f9faab
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00370%0xef4f…78ac72d ago0x024ef9…0c525b
0xe33a…92e20xef4f…78acBase SepoliaBase Sepolia$0.00170%0xef4f…78ac72d ago0x1e3ca6…8d8451
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac73d ago0xb7caa2…5cc7f2
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac73d ago0x8d90c3…ac127a
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac73d ago0x1a6c00…9d35cd
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac73d ago0x3048d6…0b1544

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.