# x402stock Options Chain Lookup

> x402stock Options Chain Lookup is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-15).

Returns every listed options contract for a US-listed underlying ticker, including strike, expiration, call/put type, exercise style, and contract details, with filtering support.

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/options/:ticker?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402stock-options-chain-lookup-f50f78a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PMCLJmXmOgoqCiYN03mRu

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402stock-options-chain-lookup-f50f78a3
```

Example prompt: Pull the full options chain for NVDA — show me all listed call and put contracts with their strikes, expirations, and contract tickers so I can figure out which ones to analyze further.

## When to prefer this

Use this endpoint when you need to discover which options contracts exist for a US-listed stock or ETF before fetching price data, greeks, or historical series. It is the correct first step in any options workflow — acting as a contract catalog. Prefer this over price endpoints when you don't yet know the specific contract ticker symbols you want to analyze.

## Known failure modes

- Invalid or unlisted ticker returns an empty array or 404
- Malformed expiration_date format (not YYYY-MM-DD) may return an error
- Strike price outside available range returns empty results
- Payment not included or insufficient USDC causes 402 Payment Required
- Rate limiting or network timeout on high-traffic tickers
- Unsupported contract_type value returns validation error

## 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

Returns a list of options contracts for the given ticker, each containing the contract ticker symbol, strike price, expiration date, call or put type, exercise style (American/European), and shares per contract. Supports pagination via limit and ordering. Designed to be used before fetching price history for specific contracts.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "ticker": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "default": 50,
       "maximum": 1000,
       "exclusiveMinimum": 0
      },
      "order": {
       "enum": [
        "asc",
        "desc"
       ],
       "type": "string",
       "default": "asc"
      },
      "expired": {
       "type": "boolean"
      },
      "strike_price": {
       "type": "number",
       "exclusiveMinimum": 0
      },
      "contract_type": {
       "enum": [
        "call",
        "put"
       ],
       "type": "string"
      },
      "expiration_date": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402stock-options-chain-lookup-f50f78a3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.x402stock.xyz](https://www.zero.xyz/host/agents.x402stock.xyz/llms.txt)