Roundhouse

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

x402 facilitatorBaseUnattributed

0xb218…7500

1 relayer wallet · relayer observed on-chain

Txs relayed (lifetime)
238
Bars: last 90 days
Settled (182d)
$46.97
Bars: last 90 days
Buyers
9
Distinct, last 182d
Sellers
5
Distinct, last 182d
—
Share of x402 (est)
Sampled 30-day estimate
1d ago
Last seen

Settled volume, last 182 days

$46.97 total

Settlements relayed, last 182 days

99 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
0x01ed…c6e3$0.00$43.618057d agoGraph
0xef18…c584$20.67$0.00975d agoGraph
0x2215…6bfc$14.85$0.002654d agoGraph
0x9b9f…c740$6.74$1.034464d agoGraph
0x6761…f734$3.33$0.001104d agoGraph
0xb2b6…8a87$0.03$2.03851d agoGraph
0x4ec5…48e6$1.00$0.001105d agoGraph
0x0000…c0de$0.00$0.26951d 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
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$2.6770%0xb218…750098d ago0xe20787…870da0
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$1.0070%0xb218…750098d ago0x154d40…66802f
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$1.0070%0xb218…750098d ago0x0b9b99…8bcef4
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…750098d ago0x1aed38…1e5b79
0x2215…6bfc0x01ed…c6e3Base SepoliaBase Sepolia$0.00570%0xb218…750098d ago0x31ef1b…6c20b0
0x2215…6bfc0x01ed…c6e3Base SepoliaBase Sepolia$0.00570%0xb218…750098d ago0x9415b4…39c443
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…750098d ago0xa7b352…25de44
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0170%0xb218…750098d ago0xd5e5d4…fef5cc
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.00666770%0xb218…750098d ago0xabd733…e8d077
0xef18…c5840x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…750098d ago0xec98ed…6276dc
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.00666770%0xb218…750098d ago0x786190…9ed245
0x2215…6bfc0x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…750098d ago0xe0c14f…b29919
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…750098d ago0xdb1271…1dc074
0xa118…b97c0x01ed…c6e3Base SepoliaBase Sepolia$0.0350%0xb218…750098d ago0x8e4659…65400a
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…7500100d ago0x2c04e5…2b4eb0
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…7500100d ago0x5a9710…e32fd7
0x9b9f…c7400x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…7500100d ago0x3b06c8…78cb63
0x6761…f7340x01ed…c6e3Base SepoliaBase Sepolia$3.3370%0xb218…7500104d ago0x9fefe5…bf140f
0x2215…6bfc0x0000…c0deBase SepoliaBase Sepolia$0.0370%0xb218…7500104d ago0xebd979…590050
0x2215…6bfc0x01ed…c6e3Base SepoliaBase Sepolia$0.00666770%0xb218…7500104d ago0xef1483…79f50b
0x4ec5…48e60x01ed…c6e3Base SepoliaBase Sepolia$1.0070%0xb218…7500105d ago0xec97c8…5a02c9
0xc1f0…d62f0x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…7500105d ago0x07abfc…0e648a
0xc1f0…d62f0x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…7500105d ago0xa66ee3…b82349
0xc1f0…d62f0x01ed…c6e3Base SepoliaBase Sepolia$0.0370%0xb218…7500105d ago0x403fce…9d24d9

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

Relayer wallets (gas sponsors)

WalletTxs relayedGas floatPayersPayees
0xb218…7500 2381.8418 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 0xb218…7500's settlement record over the free read API. No key, no account.

GET api.roundhouseai.io/v0/transactions?via=0xb21837ebfc398aa49c371c9a815b4c7f4ced7500

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: 0xb218…7500

curl -s 'https://api.roundhouseai.io/v0/transactions?via=0xb21837ebfc398aa49c371c9a815b4c7f4ced7500&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.