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PennyRail FX Currency Converter
x402
PennyRail FX Currency Converter is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Converts an amount from one currency to another using real-time foreign exchange rates
Price / call$0.003
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns the converted currency amount and likely the applied exchange rate for the given source-to-target currency pair.
Example use cases
International e-commerce price display
“I need to show product prices in euros for my EU customers — can you convert $49.99 USD to EUR right now?”
Travel budget planning
“I'm heading to Japan next month — how much is my $1,500 travel budget worth in Japanese yen at today's rate?”
Cross-border payment calculation
“I need to send 800 British pounds to a contractor in Canada — what's that in Canadian dollars at the current exchange rate?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/network/fx.convert--currency-convertWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call FX conversion without managing API keys for traditional forex providers. Particularly suited for agents embedded in payment or settlement workflows using the x402 micropayment protocol, where per-call billing at $0.003 USDC aligns with transactional usage patterns.
Side effects
- Unsupported or invalid currency code returns an error
- Missing required input fields causes validation failure
- Exchange rate data unavailable for exotic currency pairs
- Network timeout from upstream FX rate provider
- Malformed input object structure causes rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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