# Financial Data x402 – Options Chain

> Financial Data x402 – Options Chain is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the full options chain (calls and puts) for a given stock ticker, including strike prices, bid/ask, implied volatility, open interest, and available expirations, paid per-call via USDC on x402.

## Facts

- Endpoint: GET https://x402financialdata.com/options/%7Bticker%7D
- 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/financial-data-x402-options-chain-e5d506bd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LQVazBR8Us8tVHsZ-PwVN

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 financial-data-x402-options-chain-e5d506bd
```

Example prompt: Pull the full options chain for AAPL right now — I want to see all the calls and puts, their strike prices, bid/ask, implied volatility, and open interest, plus whatever expirations are available.

## When to prefer this

Choose this endpoint when you need structured, real-time options chain data (calls, puts, Greeks-adjacent fields like implied volatility) for a publicly traded equity without committing to a subscription or managing API keys. Ideal for agents making one-off or low-frequency options queries where pay-per-call economics are preferable. Use over traditional data providers when operating in a crypto-native or x402-enabled environment with USDC on Base or Solana.

## Known failure modes

- Invalid or unrecognized ticker returns an error or empty data
- Ticker has no listed options (e.g. non-optionable stock) returns empty chains
- Payment failure or insufficient USDC balance causes x402 payment error
- Market closed or no recent data may result in stale or missing last_trade_date values
- Expired or delisted contracts may not appear in results

## How this service works

Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.

## Output

A JSON object containing two arrays — 'calls' and 'puts' — each listing all option contracts for the ticker with fields: contract_symbol, strike, bid, ask, last_price, change, percent_change, volume, open_interest, implied_volatility, in_the_money, and last_trade_date. Also includes the ticker, as_of date, selected expiration, a list of available_expirations, and the aggregate put_call_volume_ratio.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "puts": [
   {
    "ask": 1.28,
    "bid": 1.2,
    "change": -0.05,
    "strike": 320,
    "volume": 89,
    "last_price": 1.23,
    "in_the_money": false,
    "open_interest": 567,
    "percent_change": -3.92,
    "contract_symbol": "AAPL260726P00320000",
    "last_trade_date": "2026-07-25T15:45:00",
    "implied_volatility": 0.1756
   }
  ],
  "as_of": "2026-07-26",
  "calls": [
   {
    "ask": 7.95,
    "bid": 7.85,
    "change": 0.12,
    "strike": 320,
    "volume": 156,
    "last_price": 7.89,
    "in_the_money": true,
    "open_interest": 1234,
    "percent_change": 1.54,
    "contract_symbol": "AAPL260726C00320000",
    "last_trade_date": "2026-07-25T15:59:00",
    "implied_volatility": 0.1842
   }
  ],
  "ticker": "AAPL",
  "expiration": "2026-07-26",
  "available_expirations": [
   "2026-07-26",
   "2026-08-02",
   "2026-08-16"
  ],
  "put_call_volume_ratio": 0.5705
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/financial-data-x402-options-chain-e5d506bd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402financialdata.com](https://www.zero.xyz/host/x402financialdata.com/llms.txt)