# Agent402 Options Summary

> Agent402 Options Summary is a paid API for AI agents from agent402.tools, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns a structured snapshot of crypto options market data for a given currency, including open interest, volume, expiries, put/call ratios, perpetual funding, DVOL, and top instruments by open interest from Deribit.

## Facts

- Endpoint: POST https://agent402.tools/api/options-summary
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent402-options-summary-decd2c38
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nafGQh98GTTdf59XZhu4I

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 agent402-options-summary-decd2c38 -d '<json body>'
```

Example prompt: Give me a full BTC options market summary from Deribit — open interest, 24h volume, put/call ratio, top instruments, perpetual funding rate, and the current DVOL index.

## When to prefer this

Use this endpoint when you need a comprehensive, pre-aggregated snapshot of a crypto options market (especially BTC or ETH) including volatility index, open interest, put/call ratios, funding rates, and top instruments — all in one call. Prefer it over raw exchange APIs when you want normalized, agent-ready data without managing Deribit authentication, and when pay-per-call via USDC (x402) is acceptable.

## Known failure modes

- Unsupported currency code returns an error or empty dataset
- Deribit API unavailability causes fetch failure
- Malformed request body results in a validation error
- Rate limiting or payment failure (x402) blocks the call
- Stale data if Deribit feed is delayed

## How this service works

A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp's mark, funding and open interest. Use it when an agent needs the state of BTC or ETH options before drilling into a chain.

## Output

A JSON object containing: DVOL volatility index with timestamp and value; perpetual contract details (funding rate, mark price, open interest, 24h volume); options aggregate stats (total instruments, 24h USD and base volume, total open interest in USD, put and call open interest, put/call ratio); per-expiry breakdown (instruments count, open interest, 24h volume); top instruments by open interest (type, expiry, strike, instrument name, mark IV, open interest, 24h volume); source attribution and fetchedAt timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "currency": {
   "type": "string",
   "description": "BTC (default), ETH, or another Deribit currency code."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "dvol": {
   "time": "2026-08-22T11:00:00.000Z",
   "value": 41.74
  },
  "source": "deribit",
  "options": {
   "expiries": [
    {
     "expiry": "26AUG26",
     "expiresAt": "2026-08-26T08:00:00.000Z",
     "instruments": 60,
     "openInterest": 12000,
     "volume24hUsd": 5000000
    }
   ],
   "instruments": 900,
   "volume24hUsd": 900000000,
   "volume24hBase": 12000,
   "putCallOiRatio": 0.733,
   "openInterestUsd": 20000000000,
   "putOpenInterest": 110000,
   "callOpenInterest": 150000,
   "topByOpenInterest": [
    {
     "type": "put",
     "expiry": "25SEP26",
     "markIv": 62.03,
     "strike": 120000,
     "instrument": "BTC-25SEP26-120000-P",
     "openInterest": 174.5,
     "volume24hUsd": 0
    }
   ],
   "totalOpenInterest": 260000
  },
  "currency": "BTC",
  "fetchedAt": "2026-08-22T12:00:00.000Z",
  "perpetual": {
   "funding8h": 0.000195,
   "markPrice": 77263.43,
   "instrument": "BTC-PERPETUAL",
   "openInterest": 903679080,
   "volume24hUsd": 664803850,
   "currentFunding": 0.000149
  },
  "indexPrice": 77232.62
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent402-options-summary-decd2c38/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)