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$0.011870d 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$0.0470%0xef4f…78ac58d ago0x59395e…f0d270
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.0470%0xef4f…78ac58d ago0x106309…fd3139
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.0470%0xef4f…78ac61d ago0xf29e56…e068bf
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.1070%0xef4f…78ac61d ago0xdace30…385e74
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x56ffbc…678ac2
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0xc83aa1…206bb3
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x1acd56…0ca2e2
0x78b3…8bf50xcda8…08a1Base SepoliaBase Sepolia$0.0170%0xef4f…78ac62d ago0x29934a…c70f82
0x04a0…0c190x4020…0003Base SepoliaBase Sepolia$0.00270%0xef4f…78ac62d ago0xaaa328…0791d4
0x04a0…0c190x4020…0003Base SepoliaBase Sepolia$0.00270%0xef4f…78ac62d ago0xd2f1fc…7f5908
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x8e6c62…ec06db
0x534f…b3990x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x1d2ddf…7f1e1f
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x2e59f4…c5d55b
0x04a0…0c190x4020…0003Base SepoliaBase Sepolia$0.00270%0xef4f…78ac62d ago0xf1342d…5ea95f
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x758952…92f4d9
0x04a0…0c190x4020…0003Base SepoliaBase Sepolia$0.00270%0xef4f…78ac62d ago0xc7f33c…12b9cd
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0xb8f991…9d1385
0x04a0…0c190x4020…0003Base SepoliaBase Sepolia$0.00270%0xef4f…78ac62d ago0x4a6064…e1e50f
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x419020…484796
0x534f…b3990x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x492199…2c464a
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0x64694d…c6a7f5
0x534f…b3990x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0xbab63a…433161
0x475c…48f50x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac62d ago0xc69dde…01f542
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.0470%0xef4f…78ac63d ago0x62b8f9…071e4d
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.0470%0xef4f…78ac63d ago0x3b9805…b047de

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.