x402 merchant
x402 settlement check$0.01 / callaizamon.com ↗
x402Settlement-checkPingHello-worldReceipt

x402 settlement check. Get proof a wallet can finish 402, sign, settle, and read the result on Base, plus an echo and a signed Ed25519 receipt. Check the receipt with the published key. $0.01 USDC. Optional ?echo= comes back in the body. Includes a signed Ed25519 receipt you can check with the published key.

MerchantReport

0xb885…2887

0xb88544cf8e9e97eeb2f313e0d3528fc1e50c2887Explorer
Received
$14.66↓ 100%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
180↓ 95%
Last 7d vs prior 7d
13
Distinct counterparties
Over the whole indexed history

Received $14.66 of the $3061.41M Roundhouse has indexed across 1,398,667 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (180)

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x6043…dcb0$0.00$8.14541d agoGraph
0xebe4…ac5d$0.00$2.501429d agoGraph
0x76ec…7ffc$0.00$1.757105d agoGraph
0x6db8…4a05$0.00$1.00414d agoGraph
0xec2a…d034$0.00$0.508113d agoGraph
0xb2f6…201d$0.00$0.32426d agoGraph
0xc9c7…1670$0.00$0.2852d agoGraph
0x3ed9…430e$0.00$0.10322d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

56% of observed volume is with a single counterparty, in all 180 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0xb1a5f0…4b0951
0x6043…dcb00xb885…2887BaseBase$0.05100%coinbase13d ago0x809e7a…10f8a3
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0x4202d6…9b4d7f
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0xf62ae0…2f0cad
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0x7d9320…e2e789
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0x172090…448657
0x6043…dcb00xb885…2887BaseBase$0.005100%coinbase13d ago0x12b63f…6be166
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0xb42136…157056
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0xd1f9ca…30e2bb
0x6043…dcb00xb885…2887BaseBase$0.01100%coinbase13d ago0x1fe880…613b15
0xec2a…d0340xb885…2887BaseBase$0.005100%coinbase13d ago0x81d298…9e2fa9
0x6db8…4a050xb885…2887BaseBase$0.98100%coinbase14d ago0xd55e1a…af9472
0x6db8…4a050xb885…2887BaseBase$0.001100%coinbase14d ago0xd4d522…5c0380
0x6db8…4a050xb885…2887BaseBase$0.01100%coinbase14d ago0xf93878…fbd170
0x6db8…4a050xb885…2887BaseBase$0.005100%coinbase14d ago0x87ca2a…adbce9
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase16d ago0xf5582f…e5db6f
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase17d ago0x9ff776…618b4d
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase17d ago0x9ee219…882690
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase17d ago0x847d92…72ce55
0x7722…5e4a0xb885…2887BaseBase$0.01100%coinbase17d ago0xa6bb3c…15639c
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase17d ago0xc97969…ee114c
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase18d ago0xa877e3…09b175
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase18d ago0x19c0d0…c0bd53
0xec2a…d0340xb885…2887BaseBase$0.001100%coinbase18d ago0x473f3f…d33e8e
0xec2a…d0340xb885…2887BaseBase$0.01100%coinbase18d ago0x9b55c4…3ef96d

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xb885…2887's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xb88544cf8e9e97eeb2f313e0d3528fc1e50c2887

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0xb88544cf8e9e97eeb2f313e0d3528fc1e50c2887

curl -s 'https://api.roundhouseai.io/v0/merchants/0xb88544cf8e9e97eeb2f313e0d3528fc1e50c2887'
curl -s 'https://api.roundhouseai.io/v0/entities/0xb88544cf8e9e97eeb2f313e0d3528fc1e50c2887/settlements?limit=50'

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://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.