# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from x402broker.com, 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 keyword.

## Facts

- Endpoint: GET https://x402broker.com/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: x402broker.com
- Website: https://x402broker.com
- Canonical page: https://www.zero.xyz/c/x402broker-com-hackernews-developer-ecosystem-real-time-sentiment-pulse-ff986f64
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JcCcn13ZmmPPCjx9Tc7HK

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 x402broker-com-hackernews-developer-ecosystem-real-time-sentiment-pulse-ff986f64
```

Example prompt: What's the live HackerNews sentiment and front-page velocity for 'Llama 3' right now — are developers excited, skeptical, or just ignoring it?

## When to prefer this

Choose this endpoint when you need real-time developer community sentiment specifically from HackerNews — the canonical signal for early-adopter and technical opinion. Prefer it over generic social media sentiment APIs when the audience is software engineers, founders, or AI researchers, or when you need front-page velocity as a proxy for breakout interest. Best used for technical topics, open-source libraries, AI models, and developer-facing startups rather than consumer brands.

## Known failure modes

- Empty or overly generic query returning low-signal results
- HackerNews API rate limits or downtime causing stale or missing data
- Rare or newly coined terms returning no matching stories
- Ambiguous keywords matching unintended topics (e.g. 'Go' matching travel vs the language)
- Payment/402 failure if USDC balance is insufficient

## 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://x402broker.com/v1/hackernews-velocity-radar)

## Output

Returns a structured object containing live HackerNews discussion data for the queried keyword, including front-page velocity (how quickly stories are reaching and staying on the front page), aggregated developer sentiment signals, relevant story links and comment summaries, and trend indicators showing whether interest is rising or falling in real time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Technology, startup, library, or topic keyword to analyze across HackerNews"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-com-hackernews-developer-ecosystem-real-time-sentiment-pulse-ff986f64/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)