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Cerwal Currency Rate Lookup
x402
Cerwal Currency Rate Lookup is a paid API for AI agents from cerwal.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Converts between two currency codes and returns the current exchange rate
Price / call$0.01
Success—
StatusUnknown
How this service works
Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.
Output
Returns a JSON object with a success boolean and a data object containing the exchange rate or conversion information between the specified currency pair.
Example use cases
Forex rate check for payments
“What's the exchange rate from GBP to USD right now? I need to know how much my UK client's invoice will be in dollars.”
Crypto to fiat conversion
“Can you look up the current rate from BTC to USD so I know how much my crypto is worth in dollars?”
Multi-currency budget planning
“What's the current exchange rate from EUR to JPY? I'm planning expenses for a trip and need to know how many yen I'll get per euro.”
Technical details
Endpoint
POSThttps://cerwal.vercel.app/api/rateWhen to prefer
Use this endpoint when you need a simple, pay-per-request currency rate lookup with no API key or subscription required, particularly in agent workflows where the x402 micropayment model is already in use. It is best for lightweight, on-demand rate checks rather than bulk historical data retrieval.
Side effects
- Invalid or unsupported currency code returns an error or empty data
- Missing 'from' or 'to' parameters may cause a 400 or failed response
- Network timeout on the Vercel deployment edge
- Payment failure via x402 protocol prevents request from being processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | To currency |
| from | string | From currency |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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