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402oracle.com Crypto Price Verification
x402
402oracle.com Crypto Price Verification is a paid API for AI agents from 402oracle.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Cross-checks a crypto asset's price across Coinbase, Kraken, and OKX, returns a median price and flags divergence, and issues a signed attestation confirming the price before a trade or settlement.
Price / call$0.02
Success—
StatusUnknown
How this service works
Confirm a crypto asset's price before your agent trades, quotes, or settles on it. A signed price oracle: cross-checks Coinbase, Kraken, and OKX for a median and flags divergence when sources disagree. Returns a signed attestation your agent can cite.
Output
Returns a signed attestation containing the median price of the requested crypto asset, individual prices sourced from Coinbase, Kraken, and OKX, and a divergence flag indicating whether the sources disagree significantly.
Example use cases
Pre-trade crypto price sanity check
“I'm about to place a large BTC/USD order — can you verify the current Bitcoin price across Coinbase, Kraken, and OKX and get me a signed attestation of the median before we proceed?”
Crypto invoice settlement verification
“A vendor just sent me an invoice for 2.5 ETH — before I pay, verify that today's ETH price is accurate and consistent across major exchanges and give me a signed record I can attach to the transaction.”
Arbitrage opportunity validation
“My bot flagged a price discrepancy for SOL across exchanges — can you run a verified cross-check of the current SOL/USDT price on Coinbase, Kraken, and OKX and tell me if the divergence is real or just stale data?”
Technical details
Endpoint
POSThttps://402oracle.com/verify/priceWhen to prefer
Choose this endpoint when your agent needs a trustworthy, multi-source verified crypto price with a signed attestation before executing a trade, settling a payment, or quoting a price to a counterparty. It is preferable over a single-exchange price feed when price integrity and auditability matter, or when you need to detect price manipulation or stale data across venues.
Side effects
- One or more exchanges (Coinbase, Kraken, OKX) unavailable — partial data returned or error flagged
- Invalid or unsupported asset ticker — endpoint returns an error identifying the unrecognized symbol
- High divergence detected — attestation issued but divergence flag set to warn the caller
- Network timeout — no attestation returned if all exchange sources fail to respond
- Malformed request — missing required asset or pair field returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| symbol | string | Ticker symbol, e.g. BTC, ETH, SOL |
Output
Schema · Response
{
"type": "json",
"example": {
"signature": {
"alg": "ES256",
"jwks": "/.well-known/jwks.json"
},
"attestation": {
"type": "price_verification",
"result": {
"sources": [
"coinbase",
"kraken",
"okx"
],
"verdict": "confirmed",
"divergent": false,
"median_usd": 67012.4
},
"subject": {
"quote": "USD",
"symbol": "BTC"
},
"confidence": 0.95
}
}
}Tags
x402
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