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x402 Options Chain
x402
x402 Options Chain 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 full options chain (calls and puts at every strike) for BTC, ETH, or SOL for a given expiry, including mark price, implied volatility, and open interest.
Price / call$0.005
Success—
StatusUnknown
How this service works
Full options chain for a currency & expiry: per-strike calls & puts with mark price, implied volatility, and open interest. Send { currency, expiry? }. The complete options board for BTC/ETH/SOL.
Output
A complete options board for the requested currency and expiry: each available strike price with call and put data including mark price, implied volatility (IV), and open interest. Sorted by strike, covering the nearest expiry by default if none is specified.
Example use cases
Example prompt
“Pull the full options chain for BTC expiring 28AUG26 — I want all strikes with mark prices, implied volatility, and open interest for both calls and puts.”
Technical details
Endpoint
POSThttps://x402-services-production.up.railway.app/api/options/chainWhen to prefer
Use this endpoint when you need a comprehensive view of crypto options across all strikes for a single expiry — ideal for options analytics, IV surface construction, or identifying crowded strikes. Prefer this over single-strike lookups when you need the full board for BTC, ETH, or SOL derivatives.
Side effects
- Unsupported currency (only BTC, ETH, SOL accepted) — likely 400 or error response
- Invalid expiry format — returns error if expiry string doesn't match expected format (e.g. 28AUG26)
- No options data available for the requested expiry — may return empty chain
- Rate limit or payment failure — 402 payment required if USDC payment not processed
- Network timeout from upstream data source
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | number | Max strikes |
| expiry | string | e.g. 28AUG26; defaults to nearest |
| currencyrequired | string | BTC, ETH, or SOL |
Tags
x402
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