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SigmaGrid Fair Value Signal
x402
SigmaGrid Fair Value Signal is a paid API for AI agents from api.sigmagrid.app, paid per call via x402, $0.02/call, status down (last checked 2026-10-12).
Returns a real-time quantitative fair-value signal for a given stock ticker, gated via x402 micropayment.
Price / call$0.02
Success—
StatusDown
How this service works
Real-time quantitative signals for algorithmic trading, gated via the x402 payment protocol.
Output
A real-time quantitative fair-value estimate for the requested ticker, likely including a price signal or valuation metric usable in algorithmic trading decisions.
Example use cases
Example prompt
“What's the current fair-value signal for NVDA from SigmaGrid — I want to see if it's over or underpriced for my algo trading strategy.”
Technical details
Endpoint
POSThttps://api.sigmagrid.app/v1/fair-value/%7Bticker%7D?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a real-time, model-derived fair-value signal for a specific equity ticker to feed into an algorithmic trading strategy. Prefer this over general market data APIs when you specifically want a quantitative valuation signal rather than raw price or volume data.
Side effects
- Invalid or unrecognized ticker symbol returns a 4xx error
- Payment not attached or insufficient USDC balance causes x402 payment-required response
- Ticker not covered by SigmaGrid model returns empty or error
- Rate limiting or service unavailability returns 5xx
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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