0x5121…fd3e
Paid $8.05 of the $3059.45M Roundhouse has indexed across 1,397,037 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (109)
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 |
|---|---|---|---|---|
| Web & Content | 96% | $7.76 | 100 | 1 |
| Not in any catalogue | 3% | $0.26 | 3 | 1 |
| Reference Data | <1% | $0.03 | 6 | 1 |
$0.25 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 2 of 3 the amount paid narrows the list to the ones listed at that price.
- 0x8aa6…aab4 · last paid 13d ago$7.76100 calls
▸11 of 11 catalogued endpoints list a price this agent paid
- /v1/company/searchPrice matchWeb search$0.005 listed
- /v1/tenders/searchPrice matchWeb search$0.05 listed
- /v1/grants/matchPrice match$0.15 listed
- /v1/grants/searchPrice matchWeb search$0.10 listed
- /v1/tenders/fit-scorePrice match$0.20 listed
- /v1/funders/:namePrice match$0.20 listed
- /v1/company/:numberPrice matchCompany enrichment$0.02 listed
- /v1/company/:number/fcaPrice match$0.02 listed
3 further catalogued endpoints not listed.
- 0x1da3…7c1d · last paid 83d ago$0.263 calls
This wallet publishes no endpoint in any catalogue we crawl, so what was bought is not recorded anywhere we can read.
- 0xabf4…a9d0 · last paid 14d ago$0.036 calls
▸36 of 200 catalogued endpoints list a price this agent paid
- /api/onchain-sql$0.04 listed
- /api/perp-basis$0.002 listed
- /api/perp-fundingPerp funding and open interest$0.002 listed
- /v1/metered/chat/completionsText completion$0.001 listed
- /api/hash$0.001 listed
- /api/weather-historyWeather forecast$0.002 listed
- /api/searchWeb search$0.01 listed
- /v1/nano/chat/completionsText completion$0.003 listed
192 further catalogued endpoints not listed.
One merchant publishes more endpoints than a single catalogue read returns; its list is partial.
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 | |
|---|---|---|---|---|---|
| 0x8aa6…aab4 | $7.76 | $0.00 | 100 | 13d ago | Graph |
| 0x1da3…7c1d | $0.26 | $0.00 | 3 | 83d ago | Graph |
| 0xabf4…a9d0 | $0.03 | $0.00 | 6 | 14d ago | Graph |
Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.
96% of observed volume is with a single counterparty, in all 109 observed settlements.
Organic volume $8.05 of $8.05 total.
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 0x5121…fd3e has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0x51210c353860959e0eecb596af28a0a2b51efd3e
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: 0x5121…fd3e curl -s 'https://api.roundhouseai.io/v0/agents/0x51210c353860959e0eecb596af28a0a2b51efd3e' curl -s 'https://api.roundhouseai.io/v0/entities/0x51210c353860959e0eecb596af28a0a2b51efd3e/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.