# VerifyOracle Crypto Spot Price Feed

> VerifyOracle Crypto Spot Price Feed is a paid API for AI agents from verify-oracle.run402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

Returns live cryptocurrency spot prices in USD by aggregating median prices from Coinbase and Kraken exchange order books.

## Facts

- Endpoint: GET https://verify-oracle.run402.com/api/crypto-price?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifyoracle-crypto-spot-price-feed-9768cf22
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XTCWKaANcyhpX1ZtoWIbn

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 verifyoracle-crypto-spot-price-feed-9768cf22
```

Example prompt: What's the current spot price of ETH in USD right now, pulling from both Coinbase and Kraken?

## When to prefer this

Prefer this endpoint when you need a median spot price across two major exchanges (Coinbase and Kraken) rather than a single-exchange quote, particularly for BTC, ETH, or SOL in USD. It is ideal for agents that need a tamper-resistant reference price that doesn't rely on a single exchange, such as DeFi settlement checks, portfolio valuation, or pre-trade sanity checks. For exotic altcoins or non-USD pairs, choose a broader market data provider.

## Known failure modes

- Unsupported symbol returns an error — only BTC, ETH, SOL and a limited set of pairs are supported
- Exchange connectivity issues may cause one source (Coinbase or Kraken) to be missing from the 'sources' object
- Stale timestamp if upstream exchange feeds lag; check the 'timestamp' field
- Invalid query parameter names return an empty or default BTC-USD response rather than an explicit error

## How this service works

Live cryptocurrency spot price feed in USD (BTC price, ETH price, SOL price) from Coinbase and Kraken primary exchange spot books.

## Output

Returns a JSON object with the asset symbol (e.g. BTC-USD), base and quote currency, spot price as a number (repeated in 'price', 'spot', and 'value' fields for convenience), per-exchange prices from Coinbase and Kraken, a median source label, and an ISO 8601 timestamp of the price fetch.

## 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": {
      "coin": {
       "type": "string",
       "description": "Optional coin name alias (e.g. bitcoin)"
      },
      "pair": {
       "type": "string",
       "description": "Optional pair alias (e.g. BTC-USD)"
      },
      "symbol": {
       "type": "string",
       "description": "Trading pair or asset symbol (default BTC-USD)"
      },
      "ticker": {
       "type": "string",
       "description": "Optional ticker alias (e.g. BTCUSD)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "base": "BTC",
  "spot": 95000.25,
  "price": 95000.25,
  "quote": "USD",
  "value": 95000.25,
  "source": "coinbase-kraken-median",
  "symbol": "BTC-USD",
  "sources": {
   "kraken": 95000,
   "coinbase": 95000.5
  },
  "currency": "USD",
  "timestamp": "2026-10-21T18:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifyoracle-crypto-spot-price-feed-9768cf22/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verify-oracle.run402.com](https://www.zero.xyz/host/verify-oracle.run402.com/llms.txt)