# santyvv-data: Crypto Exchange Rates

> santyvv-data: Crypto Exchange Rates is a paid API for AI agents from santyvv-x402.santyvv1993.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Returns exchange rates for cryptocurrencies and fiat currencies quoted against a single base currency

## Facts

- Endpoint: GET https://santyvv-x402.santyvv1993.workers.dev/api/crypto/exchange-rates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-crypto-exchange-rates-ae5ea0f3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gsyW55gSkMvBzBVzvufQ3

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-crypto-exchange-rates-ae5ea0f3
```

Example prompt: What are the current exchange rates for all supported currencies quoted against USDC right now?

## When to prefer this

Choose this endpoint when you need a batch of exchange rates all denominated against a single reference currency, rather than a one-off conversion between two specific currencies. It is ideal for building price displays, portfolio valuations, or rate tables. For a single point-to-point currency conversion with a specific amount, prefer the sibling conversion endpoint on the same host.

## Known failure modes

- Invalid or unsupported base currency returns an error response
- Payment failure (missing or invalid x402 payment header) returns 402 Payment Required
- Rate data temporarily unavailable from upstream source returns a 503 or error payload
- Malformed request returns 400 Bad Request

## How this service works

Exchange rates quoted against one currency

## Output

Returns a set of exchange rates for various cryptocurrencies and/or fiat currencies, all quoted relative to a single base currency. Typically includes currency symbols and their corresponding rate values as floating-point numbers.

## 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-crypto-exchange-rates-ae5ea0f3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from santyvv-x402.santyvv1993.workers.dev](https://www.zero.xyz/host/santyvv-x402.santyvv1993.workers.dev/llms.txt)