# SundayFactoryX Equity Volatility API

> SundayFactoryX Equity Volatility API is a paid API for AI agents from api.sundayfactoryx.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Returns current market volatility data for equities via a pay-per-call x402 micropayment endpoint

## Facts

- Endpoint: GET https://api.sundayfactoryx.com/v1/market/vol/equity?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sundayfactoryx-equity-volatility-api-9471fb45
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lGwwmjQMcZnH0KOy-AkqQ

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 sundayfactoryx-equity-volatility-api-9471fb45
```

Example prompt: Pull the latest equity market volatility data for me in JSON format so I can assess current market risk.

## When to prefer this

Choose this endpoint when your AI agent needs real-time or near-real-time equity volatility data on a pay-per-call basis without a subscription, particularly when operating in an x402-native payment stack using USDC on Base. It is ideal for autonomous trading agents, risk monitors, or research pipelines that only need occasional vol lookups and want to avoid monthly subscription overhead.

## Known failure modes

- HTTP 402 returned if no valid x402 USDC payment on Base is included — agent must complete payment challenge before data is returned
- Malformed or missing format parameter may result in an unexpected response structure
- Network timeout or service unavailability may return 5xx errors
- Stale or delayed data if upstream market data feed is lagging

## How this service works

Pay-per-call (x402) market-data + research API for autonomous agents. Paid endpoints return HTTP 402 with an x402 v2 payment challenge; pay in USDC on Base with any x402-aware client.

## Output

A JSON envelope containing equity market volatility metrics — likely including implied volatility levels, historical volatility readings, and related market data signals for equities. The exact fields are returned in a JSON object per the response schema.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "enum": [
    "json"
   ],
   "type": "string",
   "description": "response format (JSON envelope)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sundayfactoryx-equity-volatility-api-9471fb45/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sundayfactoryx.com](https://www.zero.xyz/host/api.sundayfactoryx.com/llms.txt)