0x3d99…8f20
Paid $0.08 of the $259.22M Roundhouse has indexed across 714,420 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (12)
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% | $0.08 | 6 | 2 |
$0.05 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.
- 0x35e6…1f0e · last paid 92d ago$0.054 calls
This wallet publishes no endpoint in any catalogue we crawl, so what was bought is not recorded anywhere we can read.
- 0x17cd…7905 · last paid 58d ago$0.032 calls
▸6 catalogued endpoints, none priced at an amount this agent paid
- /api/send-native$0.05 listed
- /api/send-token$0.05 listed
- /api/swap-token$0.001 listed
- /api/supply-usdc$0.10 listed
- /api/send-nft$0.05 listed
- /api/add-pool$3.00 listed
Funds flow over time
Activity
One square per day; click a day to see its settlements in the ledger.
Frequent counterparties
| Counterparty | Paid them | Received back | Settlements | Last | |
|---|---|---|---|---|---|
| 0xe7a2…b93a | $0.00 | $0.06 | 6 | 49d ago | Graph |
| 0x35e6…1f0e | $0.05 | $0.00 | 4 | 92d ago | Graph |
| 0x17cd…7905 | $0.03 | $0.00 | 2 | 58d ago | Graph |
Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.
No concentration or self-dealing patterns detected in all 12 observed settlements.
Recent activity
| Payer Payee | Chain | Amount | x402 | Route | Age | Txn hash |
|---|---|---|---|---|---|---|
| 0xe7a2…b93a0x3d99…8f20 | Base | $0.01 | 70% | 0x5e3b…c8a5 | 49d ago | 0xebd767…b08c60 |
| 0xe7a2…b93a0x3d99…8f20 | Base | $0.01 | 100% | 0x5e3b…c8a5 | 58d ago | 0x728e6b…ca5170 |
| 0xe7a2…b93a0x3d99…8f20 | Base | $0.01 | 100% | 0x5e3b…c8a5 | 58d ago | 0x1b4ad0…31a3d2 |
| 0x3d99…8f200x17cd…7905 | Base | $0.02 | 100% | coinbase | 58d ago | 0x1cbdb0…0be5e2 |
| 0x3d99…8f200x17cd…7905 | Base | $0.01 | 100% | coinbase | 59d ago | 0x1f354e…3020d4 |
| 0xe7a2…b93a0x3d99…8f20 | Base | $0.01 | 100% | 0x5e3b…c8a5 | 64d ago | 0xef7608…468b8a |
| 0xe7a2…b93a0x3d99…8f20 | Base | $0.01 | 100% | 0x5e3b…c8a5 | 92d ago | 0x5e1812…4bcf77 |
| 0x3d99…8f200x35e6…1f0e | Base | $0.01 | 100% | 0x0b44…80fc | 92d ago | 0x2a4ed2…eac46e |
| 0x3d99…8f200x35e6…1f0e | Base | $0.01 | 100% | 0x0b44…80fc | 92d ago | 0xdc9788…7f90d0 |
| 0xe7a2…b93a0x3d99…8f20 | Base | $0.01 | 100% | 0x5e3b…c8a5 | 92d ago | 0xfede9b…de1c55 |
| 0x3d99…8f200x35e6…1f0e | Base | $0.01 | 100% | 0x0b44…80fc | 92d ago | 0x651e9b…1a7a3a |
| 0x3d99…8f200x35e6…1f0e | Base | $0.02 | 100% | 0x0b44…80fc | 98d ago | 0x40545c…f81a06 |
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 0x3d99…8f20 has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0x3d9991e228a31a2a5e39fb111c6824b61d1c8f20
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: 0x3d99…8f20 curl -s 'https://api.roundhouseai.io/v0/agents/0x3d9991e228a31a2a5e39fb111c6824b61d1c8f20' curl -s 'https://api.roundhouseai.io/v0/entities/0x3d9991e228a31a2a5e39fb111c6824b61d1c8f20/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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.