0x3987…9fc4
Paid $1.39 of the $3067.43M Roundhouse has indexed across 1,401,367 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (139)
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% | $1.39 | 139 | 4 |
$0.41 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; for 3 of 4 the amount paid narrows the list to the ones listed at that price.
- 0x8d8f…bb9b · last paid 325d ago$0.7979 calls
▸3 of 5 catalogued endpoints list a price this agent paid
- /api/x402/credit-drop/xsPrice match$0.01 listed
- /api/x402/credit-drop/xsPrice match$0.01 listed
- /credit-drop/xsPrice match$0.01 listed
- /credit-drop/lg$10.00 listed
- /credit-drop$1.00 listed
- 0xb505…a677 · last paid 355d ago$0.4141 calls
This wallet publishes no endpoint in any catalogue we crawl, so what was bought is not recorded anywhere we can read.
- 0x9413…15e0 · last paid 378d ago$0.1313 calls
▸2 of 6 catalogued endpoints list a price this agent paid
- /api/mint/xsPrice match$0.01 listed
- /mint/xsPrice match$0.01 listed
- /api/mint/lg$10.00 listed
- /api/mint/xl$100.00 listed
- /api/mint/$1.00 listed
- /mint/$1.00 listed
- 0x43c8…7cb4 · last paid 380d ago$0.066 calls
▸2 of 4 catalogued endpoints list a price this agent paid
- /x402/v1/airdropPrice match$0.01 listed
- /x402/airdrop/v1Price match$0.01 listed
- /x402/airdrop/v1/xxxl$100.00 listed
- /x402/airdrop/v1/xl$1.00 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 | |
|---|---|---|---|---|---|
| 0x8d8f…bb9b | $0.79 | $0.00 | 79 | 325d ago | Graph |
| 0xb505…a677 | $0.41 | $0.00 | 41 | 355d ago | Graph |
| 0x9413…15e0 | $0.13 | $0.00 | 13 | 378d ago | Graph |
| 0x43c8…7cb4 | $0.06 | $0.00 | 6 | 380d ago | Graph |
Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.
57% of observed volume is with a single counterparty, in all 139 observed settlements.
Recent activity
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 0x3987…9fc4 has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0x39872b06b48e61ff9a0e2daf03b8b37cefe29fc4
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: 0x3987…9fc4 curl -s 'https://api.roundhouseai.io/v0/agents/0x39872b06b48e61ff9a0e2daf03b8b37cefe29fc4' curl -s 'https://api.roundhouseai.io/v0/entities/0x39872b06b48e61ff9a0e2daf03b8b37cefe29fc4/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://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.