0xb3a4…21f7
Paid $0.46 of the $3059.45M Roundhouse has indexed across 1,397,282 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (180)
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 | 53% | $0.18 | 78 | 10 |
| Risk & Compliance | 35% | $0.12 | 25 | 1 |
| Crypto Markets | 12% | $0.04 | 4 | 1 |
Every merchant paid publishes at least one catalogued endpoint.
Services it paid
A settlement carries the payee and the amount, never the URL. These are the endpoints each payee publishes; for 11 of 12 the amount paid narrows the list to the ones listed at that price.
- 0x2bb7…ac6d · last paid 159d ago$0.1225 calls
▸173 of 200 catalogued endpoints list a price this agent paid
- /proxy/supply-chain-finance-score-api-3c9435Price match$0.005 listed
- /proxy/transition-finance-score-api-ddb242Price match$0.005 listed
- /proxy/refinance-calculator-api-9ebfbfPrice match$0.005 listed
- /proxy/refinance-breakeven-calculator-api-bd92dcPrice match$0.005 listed
- /proxy/email-free-provider-a95057Price match$0.005 listed
- /proxy/campaign-update-score-api-2a1281Price match$0.005 listed
- /proxy/project-finance-score-api-fb6470$0.05 listed
- /proxy/on-chain-volume-score-api-7e996b$0.01 listed
192 further catalogued endpoints not listed.
- 0xd70d…ab5e · last paid 71d ago$0.045 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/jokesPrice match$0.002 listed
- 0x1080…7de0 · last paid 100d ago$0.044 calls
- 0x3803…101b · last paid 51d ago$0.036 calls
▸6 of 11 catalogued endpoints list a price this agent paid
- /test-billingPrice match$0.001 listed
- /api/flights/searchPrice match$0.01 listed
- /researchPrice match$0.01 listed
- /89e509/legal/litigation$0.04 listed
- /topup-balance$0.50 listed
- /4cbbb6/api/x402/vibe-tools/twitter/tweet/:tweet_id/liking-users$0.006 listed
- /discovery$0.0017 listed
- /89e509/legal/patents$0.03 listed
3 further catalogued endpoints not listed.
- 0xa306…10c3 · last paid 70d ago$0.028 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/convert-weightPrice match$0.0025 listed
- 0x52e2…f3ea · last paid 106d ago$0.025 calls
▸33 of 98 catalogued endpoints list a price this agent paid
- /api/chain/erc20-balancePrice match$0.003 listed
- /api/chain/block-numberPrice match$0.001 listed
- /api/chain/block-numberPrice match$0.001 listed
- /api/chain/live-balancePrice match$0.003 listed
- /deepstate/v1/book/:book$0.005 listed
- /deepstate/v1/candles/:bookCrypto price history$0.005 listed
- /deepstate/v1/stats/:book$0.005 listed
- /api/chain/erc20-transfers$0.005 listed
90 further catalogued endpoints not listed.
- 0x255c…387b · last paid 70d ago$0.017 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/riddlePrice match$0.002 listed
- 0x6a49…712f · last paid 51d ago$0.0110 calls
▸1 catalogued endpoints, none priced at an amount this agent paid
- /api/horror-story$0.01 listed
- 0xbf0d…73a0 · last paid 51d ago$0.0112 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/dicePrice match$0.001 listed
- 0x2af9…e129 · last paid 52d ago$0.018 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/word-of-the-dayPrice match$0.0015 listed
- 0x1350…9d34 · last paid 52d ago$0.0111 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/life-advicePrice match$0.001 listed
- 0xbbba…06d4 · last paid 70d ago$0.016 calls
▸1 of 1 catalogued endpoints list a price this agent paid
- /api/roastPrice match$0.0017 listed
One merchant publishes more endpoints than a single catalogue read returns; its list is partial.
ERC-8004 registration
Card follows eips.ethereum.org/EIPS/eip-8004#registration-v1
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 | |
|---|---|---|---|---|---|
| 0x2bb7…ac6d | $0.12 | $0.00 | 25 | 159d ago | Graph |
| 0xd70d…ab5e | $0.04 | $0.00 | 5 | 71d ago | Graph |
| 0x1080…7de0 | $0.04 | $0.00 | 4 | 100d ago | Graph |
| 0x3803…101b | $0.03 | $0.00 | 6 | 51d ago | Graph |
| 0xa306…10c3 | $0.02 | $0.00 | 8 | 70d ago | Graph |
| 0x52e2…f3ea | $0.02 | $0.00 | 5 | 106d ago | Graph |
| 0x255c…387b | $0.01 | $0.00 | 7 | 70d ago | Graph |
| Horror Story API | $0.01 | $0.00 | 10 | 51d 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 180 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 0xb3a4…21f7 has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0xb3a4b4f7767dc3444c99c039be3b39a080eb21f7
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: 0xb3a4…21f7 curl -s 'https://api.roundhouseai.io/v0/agents/0xb3a4b4f7767dc3444c99c039be3b39a080eb21f7' curl -s 'https://api.roundhouseai.io/v0/entities/0xb3a4b4f7767dc3444c99c039be3b39a080eb21f7/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.