# TradFi Market Quotes (S&P 500, Gold, Nasdaq 100)

> TradFi Market Quotes (S&P 500, Gold, Nasdaq 100) is a paid API for AI agents from asistent-crypto.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns real-time ETF-priced quotes for S&P 500, gold, and Nasdaq 100 to provide traditional-market context for crypto analysis

## Facts

- Endpoint: POST https://asistent-crypto.vercel.app/api/x402/data/tradfi-quotes
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tradfi-market-quotes-s-p-500-gold-nasdaq-100-0b1aee5e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ly4GDqeI_1Fte_sD9BNp_

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 tradfi-market-quotes-s-p-500-gold-nasdaq-100-0b1aee5e -d '<json body>'
```

Example prompt: Before we dig into why BTC is moving, pull the current S&P 500, Nasdaq 100, and gold quotes so I can see if this is a broad risk-off move or something crypto-specific.

## When to prefer this

Choose this endpoint when you need to contextualize a crypto price move against traditional market conditions, specifically to check whether BTC/ETH selling is correlated with a broad equities selloff rather than a crypto-native cause. Prefer this over general market data APIs when you are already working within the asistent-crypto.vercel.app ecosystem and want a single pay-per-call call covering S&P 500, Nasdaq 100, and gold together as a macro regime snapshot.

## Known failure modes

- Market data provider outage returns stale or empty quotes
- Outside market hours may return previous close rather than real-time data
- POST request with unexpected body format may return 400 error
- Network timeout if upstream data source is slow
- Payment not processed (x402 protocol failure) returns 402 error

## How this service works

S&P 500, gold and Nasdaq 100 quotes as the traditional-market leg of a crypto read. BTC trades as a high-beta risk asset far more often than as digital gold, so equities direction is usually the better correlation to check before blaming a crypto-native cause. Priced as ETFs, so use direction and percent change, not the absolute level.

## Output

Returns ETF-priced quotes for S&P 500 (SPY), Nasdaq 100 (QQQ), and gold (GLD) including current price and percent change. Intended for directional and percentage-change analysis rather than absolute price levels, since these are ETF proxies rather than the underlying indices.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [],
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tradfi-market-quotes-s-p-500-gold-nasdaq-100-0b1aee5e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from asistent-crypto.vercel.app](https://www.zero.xyz/host/asistent-crypto.vercel.app/llms.txt)