0x3978…8881
Paid $2.10 of the $261.41M Roundhouse has indexed across 717,464 wallets — less than 0.0001% of it.
Chains (from the recent scan): Base (355)
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 | 100% | $2.10 | 210 | 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 1 of 1 the amount paid narrows the list to the ones listed at that price.
- 0x3ede…d839 · last paid 277d ago$2.10210 calls
▸191 of 193 catalogued endpoints list a price this agent paid
- /prediction/agent0Price match$0.01 listed
- /prediction/agent1Price match$0.01 listed
- /prediction/agent1Price match$0.01 listed
- /prediction/agent0Price match$0.01 listed
- /prediction/agent0Price match$0.01 listed
- /prediction/agent0Price match$0.01 listed
- /prediction/agent2Price match$0.01 listed
- /player_to_system$0.02 listed
185 further catalogued endpoints not listed.
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 | |
|---|---|---|---|---|---|
| 0x3ede…d839 | $2.10 | $1.60 | 354 | 277d ago | Graph |
| 0xc8b1…339f | $0.00 | $0.50 | 1 | 301d ago | Graph |
Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.
88% of observed volume is with a single counterparty, in all 355 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 0x3978…8881 has actually paid for over the free read API. No key, no account.
GET api.roundhouseai.io/v0/agents/0x3978dec1fdb06e0fbed844b7d0bdbcac1f258881
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: 0x3978…8881 curl -s 'https://api.roundhouseai.io/v0/agents/0x3978dec1fdb06e0fbed844b7d0bdbcac1f258881' curl -s 'https://api.roundhouseai.io/v0/entities/0x3978dec1fdb06e0fbed844b7d0bdbcac1f258881/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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.