Currency Exchange Rates
Currency exchange rates: convert an amount between currencies such as USD, EUR, GBP and JPY at the European Central Bank reference rate, today or on a past date.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.002 USDC on Base to 0xBbfC…cE704. The signed payment is good for 5 minutes.
- Paid to
- 0xBbfC…cE704
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- HBasGE…i3gYf
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xBbfCE2D320dE6aB328Ba93A771c531ebFC9cE704",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "HBasGEGD1szEkNCWckRoZg2vZGhzt7yLSixLgSHi3gYf",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"to": "EUR",
"from": "USD",
"amount": 100
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"to": "EUR",
"from": "USD",
"rate": 0.8908686,
"amount": 100,
"notice": "These reference rates are published free of charge by the European Central Bank at https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html. They are for information purposes only, not for transactions.",
"source": "European Central Bank euro foreign exchange reference rates",
"converted": 89.08685969,
"rate_date": "2026-10-02",
"requested_date": null
}
}
},
"schema": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"from",
"to"
],
"properties": {
"to": {
"type": "string",
"pattern": "^[A-Za-z]{3}$"
},
"date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "YYYY-MM-DD within the last 90 days; weekends use the previous business day."
},
"from": {
"type": "string",
"pattern": "^[A-Za-z]{3}$"
},
"amount": {
"type": "number",
"default": 1,
"minimum": 0
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
}
},
"output": {
"type": "object",
"properties": {
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"from",
"to",
"rate",
"converted",
"rate_date",
"notice"
],
"properties": {
"to": {
"type": "string"
},
"from": {
"type": "string"
},
"rate": {
"type": "number"
},
"amount": {
"type": "number"
},
"notice": {
"type": "string",
"description": "Required by the ECB: these rates are free at ecb.europa.eu and are for information only."
},
"source": {
"type": "string"
},
"converted": {
"type": "number"
},
"rate_date": {
"type": "string"
},
"requested_date": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-11 08:41Z
- Last indexed by Roundhouse
- 2026-10-26 17:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-05 09:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 31 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Currency Exchange Rates and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Currency%20Exchange%20Rates' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://data.tollkit.dev/fx, never from a cached figure, and pay with an x402 client. 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.