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S&P 500 Spot Index Quote (Delayed)
x402
S&P 500 Spot Index Quote (Delayed) is a paid API for AI agents from finance-api.kdlcfa.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns the current delayed spot quote for the S&P 500 index via Yahoo Finance
Price / call$0.01
Success—
StatusUnknown
How this service works
S&P 500 spot index quote, delayed, via Yahoo Finance
Output
Returns a delayed spot quote for the S&P 500 index, likely including the current index price/level, and potentially metadata such as change, percent change, or timestamp sourced from Yahoo Finance.
Example use cases
Daily market open check
“What's the S&P 500 at this morning? Pull me the current index level before I review my portfolio.”
Automated market dashboard update
“Grab the latest delayed S&P 500 quote and add it to today's market summary report alongside my other positions.”
Threshold alert monitoring
“Check the current S&P 500 level — I want to know if it's dropped below 5,000 so I can decide whether to rebalance.”
Technical details
Endpoint
GEThttps://finance-api.kdlcfa.workers.dev/sp500-indexWhen to prefer
Choose this endpoint when you need a quick, cheap ($0.01 USDC) delayed S&P 500 index quote without requiring a premium real-time data subscription. It is ideal for dashboards, monitoring agents, and informational use cases where 15–20 minute delay is acceptable. If you need real-time tick data or options chain data, look for a premium market data provider instead.
Side effects
- Yahoo Finance upstream outage returns an error or stale data
- Rate limiting or payment failure returns 402 or 429 response
- Network timeout if Cloudflare Worker upstream call is slow
- Delayed data may be 15–20 minutes behind real-time, which is a known limitation not an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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