x402 merchant
dappgrade$0.01 / calldappgrade.vercel.app ↗
DefiSecurityRiskOnchainDapp

dappgrade score — front-end integrity verdict for an onchain app, looked up by contract address. Inspects the app's public web front-end, not contract bytecode or admin control. Returns ok / caution / avoid / unknown with the coverage the verdict rests on.

MerchantReport

dappgrade

0x4a0aed4ce878e44ef922941f2b06137bc0b69b69Explorer
Received
$0.15↓ 50%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
15↓ 50%
Last 7d vs prior 7d
11
Distinct counterparties
Over the whole indexed history

Received $0.15 of the $3061.41M Roundhouse has indexed across 1,398,256 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (15)

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x493f…d341$0.00$0.03381d agoGraph
0xa1d1…1978$0.00$0.0228d agoGraph
0x8d2a…7d37$0.00$0.02266d agoGraph
0xf1f1…57f9$0.00$0.0115d agoGraph
0x6031…c2d1$0.00$0.01113d agoGraph
0x7722…5e4a$0.00$0.01116d agoGraph
0x54e1…f4e0$0.00$0.01121d agoGraph
0xec2a…d034$0.00$0.01123d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

No concentration or self-dealing patterns detected in all 15 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 dappgrade's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x4a0aed4ce878e44ef922941f2b06137bc0b69b69

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0x4a0aed4ce878e44ef922941f2b06137bc0b69b69

curl -s 'https://api.roundhouseai.io/v0/merchants/0x4a0aed4ce878e44ef922941f2b06137bc0b69b69'
curl -s 'https://api.roundhouseai.io/v0/entities/0x4a0aed4ce878e44ef922941f2b06137bc0b69b69/settlements?limit=50'

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.