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$0.0043362d 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 ago0xd9c2b6…35ed10
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x7b2c0d…961c62
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00370%0xcfa5…7cbb77d ago0xa854ab…ef7f99
0xa5bb…25ba0xcfa5…7cbbBase SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x04dad0…f99a57
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x9b0b49…c03fe1
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x177408…108bc2
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x6a4778…1095c9
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x0d392c…7ecf96
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0xd34b75…da4ffe
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00270%0xcfa5…7cbb77d ago0x94c336…1b8e35
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.001570%0xcfa5…7cbb77d ago0x7f8f8e…44a7ac
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.001570%0xcfa5…7cbb77d ago0x88d765…601c6e
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x05ecee…fc770e
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x1ea334…e985ab
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0xf13c0a…594a7a
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x4760d1…321e40
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x80c5a7…5c1c93
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x12b0e9…ebe1bc
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x5f8804…690821
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x68c644…ed4048
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xd8c0e2…a9db5d
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0xd4ab8a…606fba
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x6ee011…1c39f4
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00270%0xcfa5…7cbb77d ago0x0c525a…9658ce
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.001570%0xcfa5…7cbb77d ago0x8779ee…2b4637

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.