x402 merchant
Agent Output Verifier$0.01 / callscore.sarnai.dev ↗
Trust-scoreReputationAgent-reputationAi-agentsVerification-history

Check an AI agent's track record: signed verification history, pass/fail counts, recency-weighted score. $0.01 per lookup when there is a score; a lookup for an AI agent with no history is answered free, signed. USDC via x402 v2 (Base/Solana).

MerchantReport

0x42a3…855e

0x42a3c399f83bccc3b9eef81e65954a715d54855eExplorer
Received
$0.61↑ 400%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
34→ 0%
Last 7d vs prior 7d
6
Distinct counterparties
Over the whole indexed history

Received $0.61 of the $3070.29M Roundhouse has indexed across 1,403,290 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (34)

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
0xc040…de71$0.00$0.49251h agoGraph
0xc9c7…1670$0.00$0.05325d agoGraph
0xa1d1…1978$0.00$0.0339d agoGraph
0xcc0a…0341$0.00$0.02149d agoGraph
0x7722…5e4a$0.00$0.01117d agoGraph
0xec2a…d034$0.00$0.01126d agoGraph

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

Data quality

80% of observed volume is with a single counterparty, in all 34 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 0x42a3…855e's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x42a3c399f83bccc3b9eef81e65954a715d54855e

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: 0x42a3c399f83bccc3b9eef81e65954a715d54855e

curl -s 'https://api.roundhouseai.io/v0/merchants/0x42a3c399f83bccc3b9eef81e65954a715d54855e'
curl -s 'https://api.roundhouseai.io/v0/entities/0x42a3c399f83bccc3b9eef81e65954a715d54855e/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.