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fitze-x402-seller Exchange Rates
x402
fitze-x402-seller Exchange Rates is a paid API for AI agents from fitze-x402-seller.app.workbuddy.host, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Returns current foreign exchange rates for specified currency pairs, with USDC micropayment settlement via x402
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call AI/data tools settled in USDC on Base via x402. No account, no API key — pay the 402 and receive the result. All endpoints also accept a bare hostname without the https:// prefix.
Output
A JSON object containing the base currency, a map of target currency codes to their current exchange rates (e.g. EUR: 0.921), the data source (open.er-api.com), and an updated_at timestamp indicating when the rates were last refreshed.
Example use cases
Multi-currency invoice pricing
“I'm sending an invoice to clients in Europe, the UK, and Japan — can you get me today's exchange rates from USD to EUR, GBP, and JPY so I can fill in the local currency amounts?”
Travel budget conversion
“I'm planning a trip and need to know how far my dollars will go — can you look up the current USD exchange rates for EUR, JPY, and CNY?”
Crypto portfolio fiat valuation
“I need to report the value of my holdings in multiple currencies — can you fetch the latest exchange rates from USD to EUR, GBP, JPY, and CNY?”
Technical details
Endpoint
POSThttps://fitze-x402-seller.app.workbuddy.host/tools/exchange_rates?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live foreign exchange rates for one or more currency pairs without managing API keys or accounts — the x402 micropayment model ($0.002 USDC) makes it ideal for per-call agentic workflows. Prefer this over full forex APIs when lightweight, accountless access is sufficient and you only need spot rates rather than historical data or complex derivatives.
Side effects
- Invalid currency code returns an error or omits the rate from the result
- Network or upstream provider outage may return a 5xx error
- Malformed comma-separated 'to' string may cause parsing failures
- Stale data if upstream provider hasn't refreshed recently — check updated_at field
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | Comma-separated target currencies (default EUR,GBP,JPY,CNY) |
| base | string | Base currency (default USD) |
Output
Schema · Response
{
"type": "json",
"example": {
"base": "USD",
"rates": {
"CNY": 7.105,
"EUR": 0.921,
"GBP": 0.784,
"JPY": 148.32
},
"source": "open.er-api.com",
"updated_at": "Thu, 02 Oct 2026 00:00:01 +0000"
}
}Tags
x402
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