0xfb91…b57a
Paid $0.04 of the $716.75K Roundhouse has indexed across 25,162 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base Sepolia (5)
What it buys
Grouped by the capability each merchant's catalogue is mostly about. A merchant counts once, in one group — nothing records which of its endpoints a payment bought.
| Group | Share | Spent | Calls | Sellers |
|---|---|---|---|---|
| Not in any catalogue | 100% | $0.04 | 1 | 1 |
$0.04 went to wallets that publish no endpoint in any catalogue we crawl — spend we can see and cannot describe.
Services it paid
A settlement carries the payee and the amount, never the URL. These are the endpoints each payee publishes; no listed price matches an amount this agent paid, so nothing narrows them.
- 0xd820…337c · last paid 60d ago$0.041 call
This wallet publishes no endpoint in any catalogue we crawl, so what was bought is not recorded anywhere we can read.
Activity
One square per day; click a day to see its settlements in the ledger.
Frequent counterparties
| Counterparty | Paid them | Received back | Settlements | Last | |
|---|---|---|---|---|---|
| 0xd820…337c | $0.04 | $0.00 | 1 | 60d ago | Graph |
| 0xc228…cec9 | $0.00 | $0.04 | 4 | 60d ago | Graph |
Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.
50% of observed volume is with a single counterparty, in all 5 observed settlements.
Recent activity
| Payer Payee | Chain | Amount | x402 | Route | Age | Txn hash |
|---|---|---|---|---|---|---|
| 0xfb91…b57a0xd820…337c | Base Sepolia | $0.04 | 70% | 0xd407…f1bf | 60d ago | 0x3cafb0…bc1f5e |
| 0xc228…cec90xfb91…b57a | Base Sepolia | $0.01 | 70% | 0xd407…f1bf | 60d ago | 0xe40160…89847f |
| 0xc228…cec90xfb91…b57a | Base Sepolia | $0.01 | 70% | 0xd407…f1bf | 60d ago | 0xb6e49d…76e646 |
| 0xc228…cec90xfb91…b57a | Base Sepolia | $0.01 | 70% | 0xd407…f1bf | 60d ago | 0x6589fd…757a12 |
| 0xc228…cec90xfb91…b57a | Base Sepolia | $0.01 | 70% | 0xd407…f1bf | 60d ago | 0xe91c7a…1b492c |
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check what 0xfb91…b57a has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0xfb91b66c2ac9313cf7752c63da248ad23d4db57a
Show the promptHide the prompt
Using Roundhouse, vet this agent for me: what is it, what has it paid for, and does its on-chain record support what its card claims? Agent: 0xfb91…b57a curl -s 'https://api.roundhouseai.io/v0/agents/0xfb91b66c2ac9313cf7752c63da248ad23d4db57a' curl -s 'https://api.roundhouseai.io/v0/entities/0xfb91b66c2ac9313cf7752c63da248ad23d4db57a/settlements' Roundhouse indexes public chain data and does not vouch for any agent's claims — treat the card as a claim and the settlements as the evidence. 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.