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payload402 Currency Converter
x402
payload402 Currency Converter is a paid API for AI agents from payload402.edgebytenet.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Converts a monetary amount from one ISO 4217 currency to another using ECB daily reference rates via Frankfurter
Price / call$0.001
Success—
StatusUnknown
How this service works
Convert amounts between ISO 4217 currencies using ECB daily reference rates (Frankfurter). Use for invoices, travel budgets, expense reports, and shopping comparisons when you need a verifiable rate instead of LLM arithmetic. Not live tradable FX — rates follow ECB business-day publication.
Output
A JSON object containing the converted amount, the exchange rate used, the date of the ECB rate, the source and target currency codes, and a note clarifying these are ECB daily reference rates and not live tradable quotes.
Example use cases
Invoice amount conversion for billing
“I need to send an invoice for 3500 USD to a European client — can you convert that to EUR using the official ECB rate so I can include the equivalent amount?”
Travel budget planning in local currency
“I'm going to Japan next month with a budget of 2000 GBP — what is that in JPY based on the current ECB reference rate?”
Expense report foreign currency reconciliation
“I spent 8400 HKD on a business trip and need to file my expense report in USD — can you convert that using the ECB daily rate and show me the rate applied?”
Technical details
Endpoint
GEThttps://payload402.edgebytenet.workers.dev/convertWhen to prefer
Use this endpoint when you need a verifiable, auditable ECB reference rate for non-trading purposes such as invoicing, expense reports, travel budgets, or compliance — rather than relying on LLM-estimated exchange rates. Prefer this over live FX APIs when regulatory-quality ECB rates are acceptable and real-time tradable quotes are not required. Ideal for business document workflows where rate provenance matters.
Side effects
- Unsupported or invalid ISO 4217 currency code returns an error
- Amount of zero or negative number is rejected
- ECB rate not yet published for the current business day may return the previous business day's rate
- Weekend or holiday dates use the most recent available ECB publication
- Network timeout or worker unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "EUR",
"date": "2026-08-29",
"from": "USD",
"note": "ECB daily reference rates, not live quotes",
"rate": 0.85825,
"amount": 10,
"source": "frankfurter",
"converted": 8.5825
}
}Tags
x402
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