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Obol ETH/USD Spot Price with Cross-Exchange Divergence Check
x402
Obol ETH/USD Spot Price with Cross-Exchange Divergence Check is a paid API for AI agents from obol-x402.fly.dev, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).
Returns the current ETH/USD spot price by cross-checking Coinbase and Kraken, with a divergence flag if the two exchanges disagree significantly.
Price / call$0.01
Success—
StatusDown
How this service works
Ethereum ETH USD spot price Coinbase Kraken cross-check with divergence flag. Single-asset ETH/USD for AI agents. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.
Output
Returns the current ETH/USD spot price aggregated from Coinbase and Kraken, along with a divergence flag indicating whether the two exchange prices differ significantly — useful for detecting market fragmentation or data reliability issues.
Example use cases
Example prompt
“What's the current ETH price in USD? Cross-check Coinbase and Kraken and let me know if there's any divergence between them.”
Technical details
Endpoint
GEThttps://obol-x402.fly.dev/v1/price/ETHWhen to prefer
Use this endpoint when you need a trustworthy, cross-validated ETH/USD spot price and want to detect exchange-level price discrepancies. Ideal for AI agents making Ethereum-denominated decisions, DeFi workflows, or any scenario where a single-source price feed is insufficient. Prefer over single-exchange feeds when data reliability and divergence detection matter.
Side effects
- Exchange API unavailable — one or both upstream price feeds (Coinbase/Kraken) may be unreachable, returning partial or error response
- Large divergence detected — prices differ significantly between exchanges, divergence flag is raised but response still returns
- Stale price data — if upstream feeds are slow, returned price may lag real-time market
- Payment failure — x402 micropayment of $0.002 USDC not processed, endpoint returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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