# santyvv-data FX Rates

> santyvv-data FX Rates is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Fetches current foreign exchange (FX) rates via a keyless, pay-per-call API using USDC on Base

## Facts

- Endpoint: GET https://x402.santyvv.com/api/fx/rates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-fx-rates-5dc7b4d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IacL0_NpJgedglo3yEjuy

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 santyvv-data-fx-rates-5dc7b4d1
```

Example prompt: What's the current exchange rate from EUR to USD? Just fetch the latest FX rate — no API key needed, pay per call.

## When to prefer this

Choose this endpoint when you need live FX rates without account registration or API key management, especially in agentic or automated workflows where keyless micropayment access (x402/USDC on Base) is preferred over subscription-based forex APIs. Ideal for low-frequency spot lookups where paying $0.01 per call is more practical than maintaining a subscription.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 Payment Required
- Rate data temporarily unavailable from all upstream sources — returns error or stale cache notice
- Invalid or unsupported currency pair — returns error indicating unsupported pair
- Network timeout or edge cache miss — may return delayed response

## How this service works

Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.

## Output

A normalized JSON response containing the current exchange rate(s) for the requested currency pair(s), sourced from public FX data providers with edge caching and multi-source fallback for reliability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-data-fx-rates-5dc7b4d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.santyvv.com](https://www.zero.xyz/host/x402.santyvv.com/llms.txt)