# Options Chain & Implied Volatility

> Options Chain & Implied Volatility is a paid API for AI agents from x402-stock-indicators.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns a full options chain (calls and puts at all strikes) with implied volatility, volume, open interest, and put/call ratio for a given ticker and expiration date, sourced from Yahoo Finance.

## Facts

- Endpoint: GET https://x402-stock-indicators.vercel.app/options/:ticker
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/options-chain-implied-volatility-cf7f8331
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fbRMqmJM3eH6HeUj6u34F

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 options-chain-implied-volatility-cf7f8331
```

Example prompt: Pull the full options chain for TSLA — calls and puts at all strikes with implied volatility, open interest, and the put/call ratio — for the nearest expiration.

## When to prefer this

Use this endpoint when you need a full options chain with implied volatility, open interest, and volume for a US-listed equity, especially for volatility skew analysis, positioning research, or strike selection. It is sourced directly from Yahoo Finance and supports expiration date filtering, making it ideal for time-sensitive options analysis. Prefer this over general financial APIs when you specifically need multi-strike options data rather than just a single contract quote.

## Known failure modes

- Invalid or unknown ticker symbol returns an error or empty chain
- Requested expiration date not available for the given ticker (no options listed for that date)
- Market closed or data delay may result in stale IV or volume figures
- Rate limiting or payment failure if USDC balance is insufficient for x402 micropayment
- Ticker has no listed options (e.g. some small-cap or OTC stocks)

## How this service works

Options chain with calls and puts, all strikes, implied volatility, volume, open interest, and put/call volume ratio from real Yahoo Finance data. Supports optional expiration date selection (defaults to nearest). Essential for options traders analyzing volatility skew and positioning. $0.005/call.

## Output

A structured options chain including all available strike prices for the specified ticker and expiration date, with per-strike data: call and put prices (bid/ask/last), implied volatility, volume, open interest, and an aggregate put/call volume ratio. Defaults to the nearest available expiration if none is specified.

## 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",
     "required": [
      "ticker"
     ],
     "properties": {
      "ticker": {
       "type": "string",
       "description": "Stock ticker symbol, e.g. AAPL, TSLA, MSFT"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "expiration": {
       "type": "string",
       "format": "date",
       "description": "Options expiration date, e.g. 2026-07-27. Defaults to the nearest available expiration."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/options-chain-implied-volatility-cf7f8331/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-stock-indicators.vercel.app](https://www.zero.xyz/host/x402-stock-indicators.vercel.app/llms.txt)