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US Options Chain Lookup (x402stock)
US Options Chain Lookup (x402stock) is a paid API for AI agents from agents.x402stock.xyz, paid per call via MPP, $0.02/call, status unknown (last checked 2026-09-13).
Returns every listed options contract for a US-listed underlying, including strike, expiration, call/put type, exercise style, contract ticker, and shares per contract, with filters for expiration date, contract type, strike price, and expiry status.
Price / call$0.02
Success—
StatusUnknown
How this service works
The options chain for a US-listed underlying: every listed contract with its strike price, expiration date, call or put type, exercise style, contract ticker, and shares per contract. Filter with ?expiration_date=YYYY-MM-DD, ?contract_type=call|put, ?strike_price=, ?expired=true|false, and ?limit=. Use to discover which option contracts exist before pulling price history. From x402stock
Output
A JSON object containing the underlying ticker, an as-of timestamp, the source ('x402stock'), and a data object with a count and array of contracts. Each contract includes its contract ticker symbol, type (call/put), strike price, expiration date, exercise style (American/European), shares per contract, primary exchange, and CFI classification code.
Example use cases
Discovering contracts before pricing
“I want to look up the price history for a specific TSLA put option — can you first get me all put contracts for TSLA expiring on 2025-09-19 so I can find the right contract ticker?”
Scanning for near-money strikes
“Show me all SPY call options with a strike price of 560 that haven't expired yet — I want to see what contracts are listed around that level.”
Building an options chain dashboard
“Get me the complete options chain for QQQ — both calls and puts, all expirations, up to 1000 contracts sorted ascending — so I can display it in my trading dashboard.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/options/{ticker}When to prefer
Use this endpoint when you need to discover which options contracts exist for a US-listed equity or ETF before fetching price or Greeks data. It is the right first step in any options workflow — retrieve contract tickers here, then use those tickers with price-history endpoints. Prefer this over manual contract ticker construction when you are unsure of exact expiration dates, available strikes, or exercise styles for a given underlying.
Side effects
- Invalid or unrecognized ticker returns empty contract list or error
- Unsupported expiration_date format causes a validation error
- Strike price of zero or negative rejected by exclusiveMinimum constraint
- Limit exceeding 1000 rejected by schema maximum
- No contracts match the combined filters — returns count:0 with empty array
- Network or upstream x402stock outage returns a 5xx error
- Payment failure via x402 prevents the request from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| order | string | |
| tickerrequired | string | US-listed ticker symbol (uppercase), e.g. AAPL. |
| expired | boolean | |
| strike_price | number | |
| contract_type | string | |
| expiration_date | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | |
| as_ofrequired | string | |
| sourcerequired | string | |
| tickerrequired | string | |
| feedback | object |
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