x402 merchant
Currency Exchange Rates (ECB)$0.005 / callx402-gateway.blackwoodstate8.workers.dev ↗
Currency exchange ratesFx ratesForexEcbData

Use when you need currency exchange rates, fx rates or forex conversion of an amount between two currencies like EUR and GBP. Do not use for live trading quotes, intraday or crypto rates (ECB rates update once per business day). Returns JSON with currency exchange rates: official ECB euro reference FX rates (free at ecb.europa.eu) for about 30 currencies, rebased to any base as cross rates, with optional conversion for 0.005 USDC per call. Typical response time 1500 ms (p95). Category: Data.

MerchantReport

0xff91…82b7

0xff918cfb0690fded4224dbdab916f6e6f78882b7Explorer
$0.03
Received
$0.00
Paid out
6
Settlements
3
Distinct counterparties
In the 6 settlements scanned

Received $0.03 of the $833.87M Roundhouse has indexed across 1,300,188 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 (6)

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x87db…f8cf$0.00$0.02417h agoGraph
0xa1d1…1978$0.00$0.00514h agoGraph
0xec2a…d034$0.00$0.00511d agoGraph

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

Data quality

67% 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 0xff91…82b7's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xff918cfb0690fded4224dbdab916f6e6f78882b7

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: 0xff918cfb0690fded4224dbdab916f6e6f78882b7

curl -s 'https://api.roundhouseai.io/v0/merchants/0xff918cfb0690fded4224dbdab916f6e6f78882b7'
curl -s 'https://api.roundhouseai.io/v0/entities/0xff918cfb0690fded4224dbdab916f6e6f78882b7/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.