# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

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

## Facts

- Endpoint: GET https://preflight.agentdiet.dev/v1/hackernews-top?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: preflight.agentdiet.dev
- Website: https://preflight.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/preflight-agentdiet-dev-hackernews-developer-ecosystem-real-time-e54a65ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-eEff9XYyxea9DSDC6k68

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 preflight-agentdiet-dev-hackernews-developer-ecosystem-real-time-e54a65ac
```

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

## When to prefer this

Choose this endpoint when you need real-time, developer-community-specific sentiment from HackerNews — not generic social media sentiment. It is best suited for evaluating how technical practitioners feel about a framework, library, startup, or AI model, and for measuring front-page discussion velocity as a proxy for current buzz. Prefer this over Twitter/X sentiment APIs when the target audience is specifically developers and technical decision-makers.

## Known failure modes

- Missing or empty 'query' parameter returns a validation error
- HackerNews API unavailability may cause degraded or stale results
- Very niche or obscure query terms may return sparse or empty discussion data
- Payment failure (HTTP 402) if x402 micropayment is not completed correctly
- Rate limiting if called at high frequency without proper payment

## 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://preflight.agentdiet.dev/v1/hackernews-top)

## Output

Returns live HackerNews discussion data for the queried keyword, including front-page post velocity, relevant thread summaries, and an aggregated developer sentiment signal indicating community reception (positive, negative, or mixed) across recent discussions.

## 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/preflight-agentdiet-dev-hackernews-developer-ecosystem-real-time-e54a65ac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from preflight.agentdiet.dev](https://www.zero.xyz/host/preflight.agentdiet.dev/llms.txt)