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Carbon & Cashmere News Reaction Time API – SOL
x402
Carbon & Cashmere News Reaction Time API – SOL is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status down (last checked 2026-09-14).
Returns statistical analysis of how quickly SOL's price reacts to news events, including reaction rates, time-to-move distributions, and recent news-price samples.
Price / call$0.05
Success—
StatusDown
How this service works
Professional crypto market intelligence. Real-time prices, signals, and market scoring.
Output
A JSON object containing: the coin ticker (SOL), aggregate stats (total news count, reaction rate, seconds-to-move distribution with min/max/median/p25/p75, number of events reacted within window), the active filter parameters (sentiment, min impact, lookback days, time window, move threshold), and an array of recent individual news-to-price-move samples with timestamp, headline, source, sentiment, impact level, price at news, first move percent, and seconds to move.
Example use cases
Backtesting news-driven SOL strategy
“I'm building an event-driven trading strategy for Solana — can you pull the news reaction stats from Carbon & Cashmere with a 2% move threshold and 30-day lookback so I can see how often and how quickly high-impact news actually triggers a meaningful price move?”
Measuring SOL alpha window post-news
“Before I set up an automated SOL trade trigger, I want to know how long the alpha window typically lasts after a Solana news event — grab me the seconds-to-move distribution from Carbon & Cashmere filtering for high-impact, positive sentiment news over the last 7 days.”
Comparing SOL news sensitivity over time
“Can you check Carbon & Cashmere for Solana's news reaction rate over the past 30 days versus the past 7 days? I want to see if SOL has gotten more or less sensitive to news lately by comparing the median reaction times and reaction rates across both lookback windows.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/news-reaction-time/SOLWhen to prefer
Use this endpoint when you need to quantify how quickly and reliably crypto news drives price movement for SOL specifically — ideal for building news-driven trading signals, event-driven strategy backtesting, or assessing the alpha window after a news event. Prefer this over generic price APIs when the research question is about news-to-price latency rather than current price alone.
Side effects
- Invalid or unsupported coin symbol returns 404 or empty result
- Lookback window too large may return sparse or no data
- API payment not satisfied (x402 payment required) returns 402
- Rate limiting or infrastructure issues return 5xx
- Filter combination (e.g. very high min_impact + narrow time window) yields zero matching events
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "BTC",
"stats": {
"news_total": 412,
"reaction_rate": 0.696,
"seconds_to_move": {
"max": 21540,
"min": 60,
"p25": 720,
"p75": 5400,
"median": 1842
},
"reacted_within_window": 287
},
"filter": {
"sentiment": null,
"min_impact": null,
"lookback_days": 14,
"time_window_hours": 6,
"move_threshold_pct": 0.005
},
"recent_samples": [
{
"ts": "2026-05-09T14:32:00Z",
"title": "Bitcoin ETF inflows hit record",
"source": "CoinDesk",
"sentiment": "positive",
"impact_level": "HIGH",
"price_at_news": 79500,
"first_move_pct": 0.00712,
"seconds_to_move": 480
}
]
}
}Tags
x402
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