# The Stall — Options Chain Data

> The Stall — Options Chain Data is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches the full options chain (calls and/or puts) for a US equity or index ticker, with optional filters for expiration date, option type, and strike proximity to current price.

## Facts

- Endpoint: GET https://the-stall.intuitek.ai/cap/options-chain
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the-stall-options-chain-data-e07be82f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9Htvr0R9hI-HDjjEG5dFc

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 the-stall-options-chain-data-e07be82f
```

Example prompt: Can you pull the options chain for NVDA — show me both calls and puts for the next 4 expirations, but only strikes within 20% of the current price?

## When to prefer this

Use this endpoint when an agent or user needs live options chain data for US equities or major indexes (SPY, QQQ, NVDA, AAPL, TSLA, etc.) and wants to pay per-call without managing API keys or accounts. Ideal for agents doing options strategy research, screening near-the-money strikes, or building derivative pricing workflows. Prefer this over brokerage APIs when no account relationship is needed.

## Known failure modes

- Invalid or unrecognized ticker symbol returns an error or empty result
- Expiration date format not matching YYYY-MM-DD pattern is rejected by schema validation
- max_expirations out of range (below 1 or above 12) is rejected
- No options data available for very illiquid tickers
- Network or upstream data provider outage results in error response
- Payment failure (insufficient USDC balance or Base mainnet issue) blocks the request

## How this service works

CBOE delayed options chain for any US equity or index — returns stock price, per-contract IV, greeks (delta/gamma/theta/vega), OI, volume, and bid/ask. Filterable by expiration date and call/put. Free CBOE data, no API key.

## Output

Returns a structured options chain for the requested ticker, including available strike prices and premiums for calls and/or puts, organized by expiration date. Optionally filtered to near-the-money strikes or a specific expiration date.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the-stall-options-chain-data-e07be82f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from the-stall.intuitek.ai](https://www.zero.xyz/host/the-stall.intuitek.ai/llms.txt)