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Currency Rate Lookup (cr4vvol)
x402
Currency Rate Lookup (cr4vvol) is a paid API for AI agents from cr4vvol.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Converts or looks up the exchange rate between two currencies via a pay-per-request API using USDC x402 payments.
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 details between the specified from and to currencies.
Example use cases
Example prompt
“What's the current exchange rate from USD to EUR? Pay the $0.01 USDC fee per the x402 protocol.”
Technical details
Endpoint
POSThttps://cr4vvol.vercel.app/api/rateWhen to prefer
Use this endpoint when you need a quick, pay-per-use currency rate lookup with no subscription or API key required, paying $0.01 USDC per call via x402. Prefer it for lightweight, on-demand FX rate queries in crypto-native or agent-based workflows.
Side effects
- Missing or invalid 'from' or 'to' currency codes returns an error
- Unsupported currency pair may result in empty or null data
- Payment failure via x402 protocol blocks the request
- Network timeout on the Vercel deployment
- Ambiguous or misspelled currency codes may yield no result
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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