Roundhouse

Filtered to Base Sepolia where marked. The headline figures, charts and heatmap cover all listed chains.

x402 facilitatorBaseUnattributed

0xcfa5…7cbb

1 relayer wallet · relayer observed on-chain

Txs relayed (lifetime)
28,510
Bars: last 90 days
Settled (182d)
$2.50
Bars: last 90 days
Buyers
5
Distinct, last 182d
Sellers
4
Distinct, last 182d
—
Share of x402 (est)
Sampled 30-day estimate
4h ago
Last seen

Settled volume, last 182 days

$2.50 total

Settlements relayed, last 182 days

987 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
0x4020…0003$0.00$2.0553956d agoGraph
0xabb2…2656$1.26$0.0051556d agoGraph
0xa5bb…25ba$1.10$0.0043363d agoGraph
0x122f…b5c9$0.00$0.4444256d agoGraph
0x1190…413b$0.08$0.003562d agoGraph
0x1724…860e$0.05$0.00169d agoGraph
0xcfa5…7cbb$0.00$0.004472d agoGraph
0xd511…f4b0$0.003$0.00369d 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
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0xafb03d…1c350f
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x640188…0bd420
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x21ad82…959e78
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x51c730…8b0be3
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0xa75883…58fdfa
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x4089df…e1008c
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x4e1ae9…6ec3ed
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x45b77b…e10ecb
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x539579…240630
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0xe75a68…7e776e
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x50929a…c766a8
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xf4038a…0c10d5
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x0f1bd5…b901a2
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0xf29dd9…caeec1
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x383da3…66ded0
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x31916f…b32ce3
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x01c6aa…be1923
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x3a21af…307d83
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xc966b3…021a0e
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xcb242e…91d123
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x603344…c76ebb
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x27eee7…7f68a3
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x28c34b…97c540
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x24af21…656f0d
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0xda9ae6…3f7251

This section carries the recent record. The ledger pages the whole history, with every filter available.

Relayer wallets (gas sponsors)

WalletTxs relayedGas floatPayersPayees
0xcfa5…7cbb 28,5100.0041 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 0xcfa5…7cbb's settlement record over the free read API. No key, no account.

GET api.roundhouseai.io/v0/transactions?via=0xcfa51eeaf6b2831d2a7e09829477e88154647cbb

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: 0xcfa5…7cbb

curl -s 'https://api.roundhouseai.io/v0/transactions?via=0xcfa51eeaf6b2831d2a7e09829477e88154647cbb&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.