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Delx Commerce — Perpetual Futures Premium Calculator
x402
Delx Commerce — Perpetual Futures Premium Calculator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Computes the funding rate premium in basis points between a perpetual futures mark price and its underlying index price
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with a schema identifier ('delx/util-perp-premium/v1') and the computed premium expressed in basis points (e.g. premium_bps: 50), representing how much the mark price deviates from the index price in hundredths of a percent.
Example use cases
Live funding rate monitoring bot
“The BTC perp mark price is 29450 and the index is 29380 — what's the premium in basis points so I can decide whether to open a short funding arb position?”
Pre-trade basis check for DeFi trader
“Before I enter this ETH perpetual long, tell me the current premium in bps: mark is 1845.50 and index is 1842.00.”
Automated risk dashboard enrichment
“I'm building a dashboard — given a SOL perp mark price of 142.30 and an index of 141.75, calculate the premium in basis points so I can flag if it's outside my 30 bps threshold.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/perp-premium?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call computation of perpetual futures basis without running the math yourself — ideal for agents or bots that need a trustless, verifiable on-chain-paid result with no subscription or API key. Prefer this over manual calculation when you need a standardized schema output for downstream pipeline consumption.
Side effects
- Missing mark or index fields returns a validation error
- Non-numeric values for mark or index cause a 400-level error
- Payment failure via x402 protocol results in a 402 response requiring USDC payment on Base or Solana
- If mark equals index, premium_bps will be 0 (valid but trivial result)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mark | number | Perp mark price |
| index | number | Index price |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-perp-premium/v1",
"premium_bps": 50
}
}Tags
x402
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