# Cravvol Currency Rate Lookup

> Cravvol Currency Rate Lookup is a paid API for AI agents from cravvol.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Converts and looks up exchange rates between two currencies, payable per-request in USDC via x402.

## Facts

- Endpoint: POST https://cravvol.vercel.app/api/rate
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cravvol-currency-rate-lookup-03d90fcf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-aaqvAuzEWEq-WWUsZ6BF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cravvol-currency-rate-lookup-03d90fcf -d '<json body>'
```

Example prompt: What's the current exchange rate from USD to EUR?

## When to prefer this

Use this endpoint when you need a quick, pay-per-use currency rate lookup without subscriptions or API keys, especially in automated agent workflows where x402 micropayment billing is already set up. Suitable for one-off conversions where a subscription-based forex API would be overkill.

## Known failure modes

- Invalid or unsupported currency code returns error in data object with success: false
- Payment not fulfilled via x402 results in 402 Payment Required response
- Missing 'from' or 'to' fields results in validation error
- Network timeout or service unavailability on Vercel returns 5xx error

## 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 requested currency pair.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "to": {
   "type": "string",
   "description": "To currency"
  },
  "from": {
   "type": "string",
   "description": "From currency"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cravvol-currency-rate-lookup-03d90fcf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cravvol.vercel.app](https://www.zero.xyz/host/cravvol.vercel.app/llms.txt)