0xb3a4…21f7
Paid $0.46 of the $3060.46M Roundhouse has indexed across 1,397,861 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
- /api/token/holders/:chainId/:addressPrice match$0.01 listed
- /api/ofac-wallet-screen/:addressPrice 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
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
| Payer Payee | Chain | Amount | x402 | Route | Age | Txn hash |
|---|---|---|---|---|---|---|
| 0xb3a4…21f70x2bb7…ac6d | Base | $0.005 | 100% | coinbase | 160d ago | 0x1d5f62…ba2094 |
| 0xb3a4…21f70x2bb7…ac6d | Base | $0.005 | 100% | coinbase | 160d ago | 0x0b896c…73f08f |
| 0xb3a4…21f70x52e2…f3ea | Base | $0.008 | 100% | coinbase | 160d ago | 0x68a356…ffc5e2 |
| 0xb3a4…21f70x52e2…f3ea | Base | $0.003 | 100% | coinbase | 160d ago | 0xf6883c…6dc03b |
| 0xb3a4…21f70x0e84…b808 | Base | $0.001 | 100% | coinbase | 160d ago | 0x068645…90f349 |
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.