0x99ff…ac0a
Paid $0.40 of the $3058.83M Roundhouse has indexed across 1,396,904 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (59)
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 | 30% | $0.08 | 8 | 3 |
| Crypto Markets | 21% | $0.06 | 6 | 3 |
| AI & Media | 17% | $0.05 | 6 | 2 |
| Onchain Data | 16% | $0.04 | 7 | 2 |
| Company & People | 12% | $0.04 | 3 | 1 |
| Web & Content | 4% | $0.01 | 1 | 1 |
$0.04 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 10 of 12 the amount paid narrows the list to the ones listed at that price.
- 0x2a46…a3a1 · last paid 24d ago$0.042 calls
This wallet publishes no endpoint in any catalogue we crawl, so what was bought is not recorded anywhere we can read.
- 0x50ab…12fc · last paid 18d ago$0.043 calls
▸15 of 200 catalogued endpoints list a price this agent paid
- /api/rh-launchesPrice match$0.01 listed
- /api/facet/honeypot$0.005 listed
- /api/fx-premiumPrediction market odds$0.02 listed
- /api/defiPrediction market odds$0.10 listed
- /api/patent/trademark$0.06 listed
- /api/travel/visa$0.08 listed
- /api/parks/crowds$0.08 listed
- /api/etfPrediction market odds$0.10 listed
192 further catalogued endpoints not listed.
- 0x9700…d3ab · last paid 1d ago$0.035 calls
▸33 of 90 catalogued endpoints list a price this agent paid
- /api/v1/paid/timePrice match$0.01 listed
- /api/v1/paid/solana-priority-feePrice match$0.002 listed
- /api/v1/paid/base-block-numberPrice match$0.002 listed
- /api/v1/paid/bazaar-pulsePrice match$0.002 listed
- /api/v1/paid/base-gas-pricePrice matchGas price$0.002 listed
- /api/v1/paid/echoPrice match$0.01 listed
- /api/v1/paid/crypto-price$0.004 listed
- /api/v1/paid/x402-facilitator-health$0.003 listed
82 further catalogued endpoints not listed.
- 0xdd25…2ec0 · last paid 16d ago$0.032 calls
▸100 of 186 catalogued endpoints list a price this agent paid
- /api/seats-aero/searchPrice match$0.02 listed
- /api/google-flights/searchPrice match$0.02 listed
- /api/seats-aero/availability$0.04 listed
- /api/hotels/search$0.03 listed
- /api/flights/search$0.05 listed
- /api/reference/locations$0.0054 listed
- /api/hotels/list$0.03 listed
- /api/flights/availability$0.03 listed
178 further catalogued endpoints not listed.
- 0xabf4…a9d0 · last paid 47m ago$0.035 calls
▸76 of 200 catalogued endpoints list a price this agent paid
- /v1/metered/chat/completionsPrice matchText completion$0.001 listed
- /api/hashPrice match$0.001 listed
- /api/searchPrice matchWeb search$0.01 listed
- /api/onchain-sql$0.04 listed
- /api/perp-basis$0.002 listed
- /api/perp-fundingPerp funding and open interest$0.002 listed
- /api/weather-historyWeather forecast$0.002 listed
- /v1/nano/chat/completionsText completion$0.003 listed
192 further catalogued endpoints not listed.
- 0x0e84…b808 · last paid 21d ago$0.024 calls
▸40 of 87 catalogued endpoints list a price this agent paid
- /tweet-searchPrice match$0.005 listed
- /crypto-newsPrice match$0.001 listed
- /meta-intelligencePrice match$0.001 listed
- /pay/agent_ottoai_crypto_newsPrice match$0.001 listed
- /filtered-newsPrice match$0.001 listed
- /token-detailsPrice match$0.001 listed
- /base-season$0.002 listed
- /kol-sentiment$0.003 listed
79 further catalogued endpoints not listed.
- 0x4df6…cdea · last paid 8d ago$0.021 call
▸23 of 57 catalogued endpoints list a price this agent paid
- /v1/token-pricePrice matchCrypto spot price$0.02 listed
- /v1/trending-coinsPrice match$0.02 listed
- /v1/domain-infoPrice matchDomain and DNS lookup$0.02 listed
- /v1/papersPrice matchWeb search$0.02 listed
- /v1/hackernewsPrice matchWeb search$0.02 listed
- /v1/geocodePrice matchGeocoding$0.02 listed
- /v1/weatherWeather forecast$0.01 listed
- /v1/serpWeb search$0.05 listed
49 further catalogued endpoints not listed.
- 0xb1ef…88c0 · last paid 23d ago$0.021 call
▸32 of 89 catalogued endpoints list a price this agent paid
- /x/searchPrice matchWeb search$0.02 listed
- /x/searchPrice matchWeb search$0.02 listed
- /pm/oddsPrice matchPrediction market odds$0.02 listed
- /x/ticker-pulsePrice match$0.02 listed
- /x/digest$0.05 listed
- /x/leads$0.05 listed
- /x/pain-points$0.05 listed
- /token/verdictPrediction market odds$0.01 listed
81 further catalogued endpoints not listed.
- 0x9876…2690 · last paid 31d ago$0.021 call
▸7 of 11 catalogued endpoints list a price this agent paid
- /v1/business-timePrice match$0.02 listed
- /v1/tx/preflightPrice match$0.02 listed
- /v1/guard/payeePrice match$0.02 listed
- /v1/tx/receipt-verifyPrice match$0.02 listed
- /v1/chain/statePrice match$0.02 listed
- /v1/fetchPage to markdown$0.01 listed
- /v1/guard/allowance$0.03 listed
- /v2/extract-image$0.06 listed
3 further catalogued endpoints not listed.
- 0x52e2…f3ea · last paid 10d ago$0.014 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.
- 0x0d08…5b44 · last paid 40d ago$0.012 calls
▸5 catalogued endpoints, none priced at an amount this agent paid
- /gasGas price$0.002 listed
- /api/fortune$0.001 listed
- /gas/historyGas price$0.01 listed
- /gas/cheapest-windowGas price$0.02 listed
- /gas/compareGas price$0.01 listed
- 0x48d5…4615 · last paid 4d ago$0.011 call
▸61 of 142 catalogued endpoints list a price this agent paid
- /api/v1/markets/technical/:symbolPrice match$0.01 listed
- /api/v1/fundamentals/:symbolPrice match$0.01 listed
- /api/v1/markets/usdc-yield$0.002 listed
- /api/v1/intelligence/candles/:symbolCrypto price history$0.005 listed
- /api/v1/markets/gas-priceGas price$0.001 listed
- /api/v1/markets/funding-ratesPerp funding and open interest$0.001 listed
- /api/v1/eu/fxCurrency conversion$0.001 listed
- /api/v1/intelligence/top-momentum$0.005 listed
134 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 | |
|---|---|---|---|---|---|
| 0x2a46…a3a1 | $0.04 | $0.00 | 2 | 24d ago | Graph |
| 0x50ab…12fc | $0.04 | $0.00 | 3 | 18d ago | Graph |
| 0x9700…d3ab | $0.03 | $0.00 | 5 | 1d ago | Graph |
| 0xdd25…2ec0 | $0.03 | $0.00 | 2 | 16d ago | Graph |
| 0xabf4…a9d0 | $0.03 | $0.00 | 5 | 47m ago | Graph |
| 0x4df6…cdea | $0.02 | $0.00 | 1 | 8d ago | Graph |
| 0x0e84…b808 | $0.02 | $0.00 | 4 | 21d ago | Graph |
| 0xb1ef…88c0 | $0.02 | $0.00 | 1 | 23d 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 59 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 0x99ff…ac0a has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0x99ffdbb7fbe7217176fb92b2c2e3d01cf1fcac0a
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: 0x99ff…ac0a curl -s 'https://api.roundhouseai.io/v0/agents/0x99ffdbb7fbe7217176fb92b2c2e3d01cf1fcac0a' curl -s 'https://api.roundhouseai.io/v0/entities/0x99ffdbb7fbe7217176fb92b2c2e3d01cf1fcac0a/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.