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Hacker News Trend & Velocity Delta Monitor

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Zero-browser, official Firebase API monitor for Hacker News. Detects breakout discussions and sudden upvote surges before stories hit #1 on the front page. Stores previous scores in memory and delivers clean velocity alerts.

Pricing

from $10.00 / 1,000 results

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0.0

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Radu Furtuna

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17 hours ago

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Hacker News Trend & Velocity Delta Monitor (Save 95%)

🛑 Stop re-scraping the entire Hacker News front page every few minutes. Polling HTML tables with headless Chrome burns CPU and generates duplicate alerts.
⚡ The Smart Delta Solution: Hacker News Trend & Velocity Delta Monitor queries the official Firebase REST API with sub-second response times (1–2s total run), remembers historical point counts in memory, and triggers alerts ONLY on breakout stories and sudden upvote surges — saving 95% on compute.

⚡ Why Use This Actor?

Zero-Browser, 100% Official API: Uses Hacker News Firebase REST endpoints. Blazing-fast sub-second responses. Runs in under 2 seconds.
Smart Delta Memory: Tracks story scores and discussion comment counts across runs. Emits alerts only when velocity spikes occur.
Pay-Per-Event (PPE): Unchanged periods cost $0 in event fees.
Developer & Founder Advantage: Catch Show HN launches, security vulnerabilities, and industry scoops before anyone else.

🔍 Tracked Events

NEW_BREAKOUT_STORY: A new story crossed your minimum score threshold.
UPVOTE_VELOCITY_SURGE: An existing story experienced a sharp upvote spike (>50% growth).

⚙️ Input Parameters

Parameter	Type	Default	Description
`minScore`	Integer	`30`	Minimum score threshold for alerts.
`maxStories`	Integer	`15`	Max top stories to evaluate.
`trackNewBreakouts`	Boolean	`true`	Alert on newly surfaced breakout stories.
`trackScoreSurges`	Boolean	`true`	Alert when an existing story surges in points.
`resetBaseline`	Boolean	`false`	Reset memory and capture a fresh snapshot.

🏷️ Keywords & Search Tags

#hacker-news #y-combinator #tech-trends #developer-news #viral-stories #upvote-tracker #osint #sentiment-tracker #ai-agent

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