x402 merchant
Selector decode$0.005 / callx402.nodeventures.io ↗
EvmCalldataSelectorDecodeAbi

Decode EVM calldata recursively (depth 4, 32 KB) into ranked candidate signatures and args; GET ?selector=0x.. looks up one selector. Price is $0.005 per call for a decoded answer; a selector not in the dataset answers 404 unknown_selector and is not charged; a 4xx is never charged

MerchantReport

0x8d20…383b

0x8d20b7f8ca1c5619afc59558879e0667e937383bExplorer
Received
$0.02
Last 7d vs prior 7d
Paid out
$3.25
Last 7d vs prior 7d
Settlements
5
Last 7d vs prior 7d
4
Distinct counterparties
Over the whole indexed history

Received $0.02 of the $3058.83M Roundhouse has indexed across 1,396,904 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (4) · Ethereum (1)

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
0x5c7b…35c5$3.25$0.001150d agoGraph
0x9947…9b99$0.00$0.0121d agoGraph
0xc9c7…1670$0.00$0.00517h agoGraph
0xa1d1…1978$0.00$0.005113h agoGraph

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

Data quality

99% of observed volume is with a single counterparty, in all 5 observed settlements.

Organic volume $3.27 of $3.27 total.

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 0x8d20…383b's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x8d20b7f8ca1c5619afc59558879e0667e937383b

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: 0x8d20b7f8ca1c5619afc59558879e0667e937383b

curl -s 'https://api.roundhouseai.io/v0/merchants/0x8d20b7f8ca1c5619afc59558879e0667e937383b'
curl -s 'https://api.roundhouseai.io/v0/entities/0x8d20b7f8ca1c5619afc59558879e0667e937383b/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.