# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Queries live HackerNews discussions, front-page velocity, and developer sentiment for any framework, startup, library, or AI model topic.

## Facts

- Endpoint: GET https://serp-extract.agentdiet.dev/v1/hackernews-velocity-radar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: serp-extract.agentdiet.dev
- Website: https://serp-extract.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/serp-extract-agentdiet-dev-hackernews-developer-ecosystem-real-time-a7264f10
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2pdaUTXHrrHqhbJWUVnmk

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability serp-extract-agentdiet-dev-hackernews-developer-ecosystem-real-time-a7264f10
```

Example prompt: What's the current HackerNews sentiment and discussion velocity around Anthropic's Claude — are developers excited, critical, or just lukewarm about it right now?

## When to prefer this

Choose this endpoint when you need real-time developer community sentiment specifically from HackerNews — the canonical source for technical founder and engineer opinion — rather than general social media sentiment. Ideal for tracking framework adoption, startup reception, or AI model buzz among a technical audience. Prefer over general web search when you specifically care about HackerNews front-page velocity or developer ecosystem reactions.

## Known failure modes

- Empty or very niche query returns no HackerNews results
- Rate limiting or HTTP 402 payment failure if micropayment not processed
- Ambiguous query keywords may return unrelated HackerNews threads
- Real-time data may have brief lag if HackerNews Algolia index is delayed
- Network timeout if HackerNews upstream is slow

## How this service works

Queries live HackerNews discussions, front-page velocity, and developer sentiment on any framework, startup, or AI model. (Live x402 v2, IETF MPP & MCP endpoint at https://serp-extract.agentdiet.dev/v1/hackernews-velocity-radar)

## Output

Returns live HackerNews discussion data including front-page velocity signals, thread counts, developer sentiment indicators, and trending momentum for the queried topic, framework, startup, or AI model.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "limit": {
   "type": "integer",
   "default": 20,
   "maximum": 100,
   "minimum": 1,
   "description": "Maximum number of items to return per page (1-100)"
  },
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Technology, startup, library, or topic keyword to analyze across HackerNews"
  },
  "cursor": {
   "type": "string",
   "description": "Opaque pagination cursor for fetching the next page"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/serp-extract-agentdiet-dev-hackernews-developer-ecosystem-real-time-a7264f10/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from serp-extract.agentdiet.dev](https://www.zero.xyz/host/serp-extract.agentdiet.dev/llms.txt)