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x402-service Catalyst Grade
x402
x402-service Catalyst Grade is a paid API for AI agents from x402-service.pages.dev, paid per call via x402, $0.04/call, status down (last checked 2026-09-15).
Grades a market-moving headline into a structured trade signal including asset, direction, confidence, horizon, and invalidation level.
Price / call$0.04
Success—
StatusDown
How this service works
Grade a market-moving headline into a structured trade signal (asset, direction, confidence, horizon, invalidation).
Output
A structured trade signal object specifying the relevant asset(s), directional call (long/short/neutral), a confidence score, a time horizon for the trade, and an invalidation condition — derived from AI analysis of the submitted headline.
Example use cases
Grade breaking crypto headline signal
“I just saw this headline: 'SEC approves spot Bitcoin ETF with record inflows on day one.' Can you grade it into a structured trade signal for BTC — give me the direction, confidence score, time horizon, and what would invalidate the trade?”
Parse Fed news into trade signal
“Turn this into a trade signal for US equities and gold: 'Federal Reserve holds rates steady but signals two cuts by year-end, surprising hawkish analysts.' What's the direction, confidence, and how long should I expect the move to play out?”
Analyze earnings headline for stock direction
“Here's a headline I'm looking at: 'NVIDIA crushes Q3 earnings with 200% revenue growth, raises full-year guidance well above consensus.' Grade this into a structured trade signal — tell me the directional call, confidence, horizon, and what level would invalidate the thesis.”
Technical details
Endpoint
POSThttps://x402-service.pages.dev/catalyst-gradeWhen to prefer
Use this endpoint when you have a specific news headline or market catalyst and need a structured, machine-readable trade signal (direction, confidence, horizon, invalidation) rather than a general market summary. Prefer this over web-search-grounded endpoints when the headline text is already known and you need fast, deterministic signal extraction rather than live research.
Side effects
- Headline too vague or unrelated to financial markets — low-confidence or neutral signal returned
- Headline exceeds 4000 character limit — request rejected with validation error
- Payment not processed or x402 header missing — 402 Payment Required response
- Ambiguous asset context without tickers provided — signal may target wrong or generic asset
- Service unavailable or Cloudflare Pages outage — 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| assets | array | Optional asset tickers to consider (e.g. ETH, BTC) |
| headline | string | Market-moving headline to grade into a trade signal (max 4000 chars) |
Tags
x402
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