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
3h 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…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x872105…92fafe
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xb0f711…fc6d52
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x5d2d3e…455199
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xc75def…94e7e9
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x445f7b…b19bba
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0xbc5269…b2581b
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x2f5424…03b549
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x64acc9…0b6428
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x858b89…50df2d
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00570%0xcfa5…7cbb77d ago0x59b557…96b4f7
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00370%0xcfa5…7cbb77d ago0xe521ed…c0920f
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00370%0xcfa5…7cbb77d ago0xca427e…bec503
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0xa341f1…45cd6c
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x3793a0…f6f73d
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00370%0xcfa5…7cbb77d ago0x7dc1cc…8b6ed4
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x10452d…35c0b3
0xa5bb…25ba0x122f…b5c9Base SepoliaBase Sepolia$0.00170%0xcfa5…7cbb77d ago0x129321…a66633
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00370%0xcfa5…7cbb77d ago0x73e686…cb1613
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x18878c…272162
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.00270%0xcfa5…7cbb77d ago0x251396…7f71da
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.001570%0xcfa5…7cbb77d ago0x4ea6ba…b7828b
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.001570%0xcfa5…7cbb77d ago0x4c2e62…27d9b1
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x170707…0082a9
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x160fa0…30e85f
0xa5bb…25ba0x4020…0003Base SepoliaBase Sepolia$0.002570%0xcfa5…7cbb77d ago0x690d67…b48837

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.