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Perp-vs-Spot Basis Calculator (Hyperliquid)
x402
Perp-vs-Spot Basis Calculator (Hyperliquid) is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns the perpetual-vs-spot basis for a given coin, including mark price, spot oracle price, basis percentage, annualized carry, and a contango/backwardation signal for basis-trade analysis.
Price / call$0.005
Success—
StatusUnknown
How this service works
Perp-vs-spot basis for a coin: mark price vs spot oracle, basis %, annualized carry, and contango/backwardation signal. Send { coin }. Basis-trade and cash-and-carry signal.
Output
Returns the mark price of the perpetual, the spot oracle price, the raw basis (mark minus spot), basis as a percentage, annualized carry rate, and a contango or backwardation signal — giving everything needed to evaluate a cash-and-carry or basis-arbitrage trade.
Example use cases
Example prompt
“What's the current basis between ETH perps and spot on Hyperliquid — is it in contango or backwardation, and what's the annualized carry for a cash-and-carry trade?”
Technical details
Endpoint
POSThttps://x402-services-production.up.railway.app/api/perps/basisWhen to prefer
Use this endpoint when you need to evaluate the basis between a perpetual futures contract and its underlying spot price for a specific coin on Hyperliquid, especially to identify cash-and-carry trade opportunities, measure contango/backwardation, or quantify annualized carry. Prefer this over generic funding rate endpoints when the key question is spot-vs-perp price divergence rather than just the funding rate.
Side effects
- Unknown or unsupported coin symbol returns an error
- Hyperliquid market data unavailable causes a fetch failure
- Missing 'coin' field in request body returns a validation error
- Market not listed on Hyperliquid returns empty or null data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| coinrequired | string | Perp symbol, e.g. ETH |
Tags
x402
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