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Crypto Spot Price – ETH/USD (Median Aggregated)
x402
Crypto Spot Price – ETH/USD (Median Aggregated) is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Returns live median USD spot price for ETH (and other supported crypto symbols) aggregated from Coinbase, Kraken, Bybit, Binance, and CoinGecko, with 24h change, volume, and source dispersion metrics.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.
Output
A JSON object with per-symbol price data including median USD spot price, individual exchange prices (Binance, Coinbase, etc.), 24h change percent, n_sources (number of exchanges that responded), dispersion_bps (spread across sources in basis points), and an updated_at ISO timestamp. Also includes a sources array listing the exchange API URLs used.
Example use cases
Real-time ETH price for trading bot
“Grab me the current ETH/USD spot price — I need the median across exchanges, the 24h percent change, and how many sources contributed so my trading bot can decide whether to rebalance.”
Multi-coin dashboard refresh
“Fetch live prices for BTC, ETH, and SOL in USD right now including 24h change for each — I'm updating my portfolio dashboard.”
Price dispersion alert check
“Get me the current ETH price and tell me the dispersion in basis points across exchanges — I want to know if there's unusual price divergence between Coinbase, Binance, and Kraken right now.”
Technical details
Endpoint
GEThttps://kr-x402-mvp.kgy5612.workers.dev/crypto/price/eth-usd?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need a robust, manipulation-resistant spot price that is the median of multiple top exchanges rather than a single source. Ideal for onchain AI agents, trading bots, or DeFi applications that need trustworthy ETH/USD (or BTC, SOL, etc.) prices without managing API keys for each exchange separately. The x402 micropayment model makes it suitable for pay-per-call agent workflows on Base. Choose this over single-exchange feeds when cross-exchange dispersion visibility matters.
Side effects
- If all exchange APIs are unreachable, the endpoint may return an error or empty prices object
- If an unsupported symbol is requested, it may be silently omitted from the response
- Payment failure (x402) returns a 402 status requiring USDC payment on Base before the response is served
- High market volatility may cause source dispersion_bps to spike, indicating unreliable median
- If fewer than the expected number of exchanges respond, n_sources will be low, reducing median reliability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"prices": {
"BTC": {
"price_usd": 80867.7,
"binance_usdt": 80860,
"coinbase_usd": 80875.4,
"change_24h_pct": 1.2
}
},
"sources": [
"https://api.binance.com",
"https://api.coinbase.com"
],
"updated_at": "2026-10-28T11:00:00Z"
}
}Tags
x402
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