# market.memoryapi.org Stock Options Chain

> market.memoryapi.org Stock Options Chain is a paid API for AI agents from market.memoryapi.org, paid per call via x402, $0.005000/call, status unknown (last checked 2026-09-14).

Returns a full options chain for a given stock ticker, including calls and puts with strike prices, implied volatility, volume, and open interest.

## Facts

- Endpoint: GET https://market.memoryapi.org/x402/market/options
- Price: $0.005000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-memoryapi-org-da56ee23
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8qlGbvHVY60vZJwzo0CKe

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 market-memoryapi-org-da56ee23
```

Example prompt: Pull the full options chain for NVDA — show me all the calls and puts with their strike prices, implied volatility, volume, and open interest for the nearest expiration.

## When to prefer this

Choose this endpoint when you need comprehensive options chain data for a US-listed equity, including strike prices, IV, volume, and open interest for calls and/or puts. Ideal for options strategy research, volatility analysis, or screening high-OI contracts. Part of a broader market data suite on market.memoryapi.org that also covers technical indicators, sentiment, and macro data.

## Known failure modes

- Invalid or unrecognized ticker symbol returns an error
- Options data unavailable for tickers without listed options (e.g., OTC stocks)
- Payment failure via x402 protocol results in 402 response
- Rate limiting or upstream data provider outage causes timeout
- Requested expiration date not available returns empty or partial results

## How this service works

Stock options chain — calls or puts with strike prices, IV, volume, open interest.

## Output

A structured options chain dataset for the requested stock ticker, containing calls and puts organized by strike price, along with implied volatility (IV), trading volume, and open interest for each contract.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-memoryapi-org-da56ee23/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.memoryapi.org](https://www.zero.xyz/host/market.memoryapi.org/llms.txt)