0x21ff…21b6
Paid $0.006 of the $3063.55M Roundhouse has indexed across 1,399,142 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (4)
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 |
|---|---|---|---|---|
| Onchain Data | 67% | $0.004 | 2 | 1 |
| Not in any catalogue | 33% | $0.002 | 2 | 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 2 of 2 the amount paid narrows the list to the ones listed at that price.
- 0xae0d…00b1 · last paid 132d ago$0.0042 calls
▸15 of 21 catalogued endpoints list a price this agent paid
- /data/yieldsPrice match$0.002 listed
- /data/nft-floor/:collectionPrice match$0.002 listed
- /data/mempoolPrice match$0.002 listed
- /data/globalPrice match$0.002 listed
- /data/governancePrice match$0.002 listed
- /data/wallet/:address$0.90 listed
- /api/overview$0.01 listed
- /api/anomalies$0.05 listed
13 further catalogued endpoints not listed.
- 0xe903…1abf · last paid 132d ago$0.0022 calls
▸53 of 200 catalogued endpoints list a price this agent paid
- /api/v1/chat/completionsText completion$0.002 listed
- /api/v1/exa/answerText completion$0.01 listed
- /api/v1/messages$0.01 listed
- /api/v1/exa/searchWeb search$0.01 listed
- /api/v1/exa/contents$0.003 listed
- /api/v1/images/generations$0.04 listed
- /api/v1/images/image2image$0.02 listed
- /api/v1/videos/generations$0.40 listed
192 further catalogued endpoints not listed.
One merchant publishes more endpoints than a single catalogue read returns; its list is partial.
Activity
One square per day; click a day to see its settlements in the ledger.
Frequent counterparties
| Counterparty | Paid them | Received back | Settlements | Last | |
|---|---|---|---|---|---|
| 0xae0d…00b1 | $0.004 | $0.00 | 2 | 132d ago | Graph |
| 0xe903…1abf | $0.002 | $0.00 | 2 | 132d ago | Graph |
Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.
67% of observed volume is with a single counterparty, in all 4 observed settlements.
Recent activity
| Payer Payee | Chain | Amount | x402 | Route | Age | Txn hash |
|---|---|---|---|---|---|---|
| 0x21ff…21b60xae0d…00b1 | Base | $0.002 | 100% | coinbase | 132d ago | 0xc1a326…5bd5a9 |
| 0x21ff…21b60xae0d…00b1 | Base | $0.002 | 100% | coinbase | 132d ago | 0x517ae5…ef5377 |
| 0x21ff…21b60xe903…1abf | Base | $0.001 | 100% | coinbase | 132d ago | 0x2814fa…7c6239 |
| 0x21ff…21b60xe903…1abf | Base | $0.001 | 100% | coinbase | 132d ago | 0x22b83d…a3004a |
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 0x21ff…21b6 has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0x21ffd78d5731ce2fcb7c4e042c606e45383421b6
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: 0x21ff…21b6 curl -s 'https://api.roundhouseai.io/v0/agents/0x21ffd78d5731ce2fcb7c4e042c606e45383421b6' curl -s 'https://api.roundhouseai.io/v0/entities/0x21ffd78d5731ce2fcb7c4e042c606e45383421b6/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.