x402 merchant
Blackwood State Speech to Text$0.05 / callx402-gateway.blackwoodstate8.workers.dev ↗
Speech to textTranscriptionTranslationMedia

Use when you need speech to text transcription or translation of an audio file at a public URL. Do not use for audio over 10 MB or speaker labels. Returns JSON with a Whisper transcription of an audio file: text, timed segments and language, or an English translation for 0.005 USDC per megabyte, up to 0.05 USDC per call (clients without upto pay the cap). Asynchronous: the paid call returns a jobId and a free pollUrl; typical job time 20000 ms (p95). Category: Media.

MerchantReport

0xe994…8ffc

0xe9949ca82543031952eb55eb045f80a94c728ffcExplorer
$0.10
Received
$0.00
Paid out
2
Settlements
1
Distinct counterparties
In the 2 settlements scanned

Received $0.10 of the $833.89M Roundhouse has indexed across 1,300,243 wallets — less than 0.0001% of it.

Counted from this wallet’s own settlements. The index rollup has no row for it yet, which is normal for an address first seen in the last half hour.

Chains (from the recent scan): Base (2)

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x87db…f8cf$0.00$0.10218h agoGraph

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

Data quality

100% of observed volume is with a single counterparty; all observed volume is with one counterparty, in all 2 observed settlements.

Organic volume $0.10 of $0.10 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x87db…f8cf0xe994…8ffcBase$0.05100%coinbase18h ago0x34dce3…8db72e
0x87db…f8cf0xe994…8ffcBase$0.05100%coinbase1d ago0xf99a9a…3e7abd

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xe994…8ffc's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xe9949ca82543031952eb55eb045f80a94c728ffc

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: 0xe9949ca82543031952eb55eb045f80a94c728ffc

curl -s 'https://api.roundhouseai.io/v0/merchants/0xe9949ca82543031952eb55eb045f80a94c728ffc'
curl -s 'https://api.roundhouseai.io/v0/entities/0xe9949ca82543031952eb55eb045f80a94c728ffc/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.