Roundhouse AI
x402 merchant
Assay$0.005 / callassay.nominal-labs.com ↗
TrustReputationQualityScoreOracle

Quality score for any x402 service, earned by real paid probes with on-chain receipts: composite 0-100, component breakdown (payment settlement, schema conformance, ground-truth accuracy, LLM-judged quality), 7-day trend, probe count. Scores publish only after 20+ probes across days; daily corpus digests are Bitcoin-anchored via OpenTimestamps. Query: /score?service={url-encoded resource URL}. Free: /tier/{url}, /leaderboard. Agent guide: https://assay.nominal-labs.com/SKILL.md

MerchantReport

0x7090…40d0

0x70900f0d5bae3f6f6378a2ff74f868810b5140d0Explorer
Received
$0.08
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
16
Last 7d vs prior 7d
2
Distinct counterparties
Over the whole indexed history

Received $0.08 of the $258.60M Roundhouse has indexed across 713,391 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (16)

Funds flow over time

Activity

MarAprMayJunJulAugSep
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x8a1a…aa53$0.00$0.081542d agoGraph
0x01c9…2816$0.00$0.005117d agoGraph

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

Data quality

94% of observed volume is with a single counterparty, in all 16 observed settlements.

Organic volume $0.08 of $0.08 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x01c9…28160x7090…40d0Base$0.005100%coinbase17d ago0xdb8f8b…85b309
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase42d ago0x8f325a…6f35e0
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase45d ago0x22cb5b…a4b60a
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase48d ago0xb36189…e9661b
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase49d ago0x2e9565…9ea075
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase51d ago0xf5b9d3…3959f5
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase54d ago0xc8d04b…9df99c
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase55d ago0xbe0e2b…edc5cd
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase58d ago0xdabccd…d11f09
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase61d ago0x88017d…1ccb7d
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase64d ago0x184b6b…72e38c
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase65d ago0xc375bb…170e6c
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase66d ago0x4649da…1ca1a2
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase66d ago0x6206dd…535bdb
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase66d ago0xbe7ca5…3ea0c7
0x8a1a…aa530x7090…40d0Base$0.005100%coinbase69d ago0x112980…790be6

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x7090…40d0's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x70900f0d5bae3f6f6378a2ff74f868810b5140d0

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: 0x70900f0d5bae3f6f6378a2ff74f868810b5140d0

curl -s 'https://api.roundhouseai.io/v0/merchants/0x70900f0d5bae3f6f6378a2ff74f868810b5140d0'
curl -s 'https://api.roundhouseai.io/v0/entities/0x70900f0d5bae3f6f6378a2ff74f868810b5140d0/settlements?limit=50'

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.