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
52m 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$0.00570%0xef4f…78ac100d ago0xc98ab7…bd1df2
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x2f3d79…63578f
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x97afe5…4ea012
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x33ffc1…3695b7
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x720683…37eb2e
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x9b9e5c…254e7e
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x76b49e…354a5a
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0xd0b3c3…f8e39f
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0xa3258f…a02842
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x3414bb…9a0d1b
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x3b580f…3ee054
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x43aa3e…7c85b1
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x1d2ce3…019b1e
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x03b23e…b15a81
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x705c53…66fbed
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0xfbb5c6…d632e5
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0xf732ff…ad6e8c
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x4b11da…314f87
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x304b86…b844be
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x169f68…9a5b62
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x44b58f…3b7e0c
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x5e5696…08a81c
0xe33a…92e20x4020…0003Base SepoliaBase Sepolia$0.00570%0xef4f…78ac100d ago0x329e09…4d4af9
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x12dd73…7f225e
0xe33a…92e20x1c47…a9f6Base SepoliaBase Sepolia$0.00170%0xef4f…78ac100d ago0x87c74a…889df6

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.