x402 merchant
Blue Cap hash.compute$0.01 / callmachine.soundiq.io
HashSha256Digestx402MCP

Compute a SHA-256 digest for customer-supplied UTF-8 or base64-decoded bytes through a stable machine endpoint. Returns the reproducible digest through a receipted external execution.

MerchantReport

0x1944…421d

0x1944822de670f45899ddbddd8fdad8d4cc1a421dExplorer
Received
$0.03↓ 100%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
6↓ 100%
Last 7d vs prior 7d
2
Distinct counterparties
Over the whole indexed history

Received $0.03 of the $258.35M Roundhouse has indexed across 712,918 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (6)

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
0xd3c0…bb09$0.00$0.02511d agoGraph
0x7dd8…17d2$0.00$0.0117d agoGraph

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

Data quality

70% of observed volume is with a single counterparty, in all 6 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 0x1944…421d's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x1944822de670f45899ddbddd8fdad8d4cc1a421d

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: 0x1944822de670f45899ddbddd8fdad8d4cc1a421d

curl -s 'https://api.roundhouseai.io/v0/merchants/0x1944822de670f45899ddbddd8fdad8d4cc1a421d'
curl -s 'https://api.roundhouseai.io/v0/entities/0x1944822de670f45899ddbddd8fdad8d4cc1a421d/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.