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Hacker News Keyword Discussion Velocity
x402
Hacker News Keyword Discussion Velocity is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).
Returns 24h and 7-day story counts, velocity ratio, and top stories for a keyword on Hacker News via Algolia HN Search
Price / call$0.003
Success—
StatusUnknown
How this service works
Keyword discussion velocity on Hacker News (Algolia HN Search, public): stories in the last 24 hours, stories in the last 7 days, velocity (24h count vs. 7-day daily average) and the top 24h stories with points and comments. Only Hacker News: Reddit and Bluesky blocked automated requests in testing, and no sentiment score is given.
Output
A JSON object containing: last24h story count, last7d story count and daily average, a velocity ratio (24h count vs 7-day daily average), the timestamp of the check, the Algolia source URL, and an array of top 24h stories each with title, HN URL, external URL, points, comment count, and creation time.
Example use cases
Startup launch buzz monitoring
“Can you check how much 'Devin AI' is being talked about on Hacker News right now? I want to see the 24-hour story count, the 7-day daily average, and any top stories with their points and comments.”
Tech trend competitive research
“I'm writing a report on AI coding tools — can you pull the Hacker News discussion velocity for 'Cursor editor' and show me the top stories from the last day?”
Product name HN presence check
“We're about to launch a feature called 'context windows' — can you check if that term is already getting traction on Hacker News and what the velocity looks like compared to the past week?”
Technical details
Endpoint
GEThttps://api.fadeandco.workers.dev/api/agent-intel/social-signal-aggregator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quantitative Hacker News discussion momentum for a specific keyword — particularly useful for tech launches, developer-focused products, or open-source projects where HN is a primary community signal. Unlike generic social listening tools, this gives a structured velocity ratio (24h vs 7-day average) purpose-built for trend detection, not just raw counts. Note it is HN-only; if Reddit or Bluesky coverage is needed, a different service is required.
Side effects
- Missing or empty keyword returns validation error
- Keyword shorter than 2 or longer than 80 characters rejected
- No stories found returns zero counts and empty topStories24h array
- Algolia HN Search API upstream downtime causes failure
- Rate limiting or payment failure returns 402 response before data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"last7d": {
"stories": 6,
"dailyAverage": 0.86
},
"source": "https://hn.algolia.com/api/v1/search_by_date",
"keyword": "bitcoin",
"last24h": {
"stories": 1
},
"velocity": 1.17,
"checkedAt": "2026-10-23T09:35:16.781Z",
"topStories24h": [
{
"url": "https://www.ft.com/content/bb564eb1-79d4-4694-aa24-1155202a9abc",
"hnUrl": "https://news.ycombinator.com/item?id=50202402",
"title": "OpenAI trims valuation target after pitching higher price",
"points": 6,
"comments": 1,
"createdAt": "2026-10-22T23:15:44Z"
}
]
}
}Tags
x402
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