# 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 on any framework, startup, or AI model

## Facts

- Endpoint: GET https://preflight.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: preflight.agentdiet.dev
- Website: https://preflight.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/preflight-agentdiet-dev-hackernews-developer-ecosystem-real-time-2585095a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YA_cv92hgBQa_aa92sLPJ

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-2585095a
```

Example prompt: What's the current developer sentiment and HackerNews front-page velocity for the Rust programming language — are people excited or skeptical about it right now?

## When to prefer this

Choose this endpoint when you need real-time, developer-community-specific sentiment and discussion velocity from HackerNews — particularly for evaluating frameworks, open-source libraries, AI models, or startups from a technical audience perspective. Prefer this over general social media sentiment tools when the target audience is specifically software engineers and technical founders, and when front-page velocity or trending discussion threads on HackerNews are the signal you care about.

## Known failure modes

- Empty or overly generic query returning no meaningful results
- HackerNews API rate limits or downtime causing stale or missing data
- Niche or very new topics with insufficient HackerNews discussion history returning low-confidence sentiment
- Ambiguous query terms matching unintended topics (e.g. 'Apple' matching fruit vs. the company)
- Payment failure via x402 protocol returning 402 status with no data

## 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-velocity-radar)

## Output

Returns live HackerNews discussion data including front-page velocity, relevant discussion threads, and aggregated developer sentiment signals for the queried technology, startup, library, or AI model topic.

## 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-2585095a/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)