# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from prompt-guard.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

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

## Facts

- Endpoint: POST https://prompt-guard.agentdiet.dev/v1/hackernews-velocity-radar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: prompt-guard.agentdiet.dev
- Website: https://prompt-guard.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/prompt-guard-agentdiet-dev-hackernews-developer-ecosystem-real-time-f1420167
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NCIu20-lNyLiQg7vJwfAq

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 prompt-guard-agentdiet-dev-hackernews-developer-ecosystem-real-time-f1420167 -d '<json body>'
```

Example prompt: What's the current HackerNews sentiment and front-page velocity for 'Llama 3'? I want to know if the developer community is excited or skeptical about it.

## When to prefer this

Choose this endpoint when you need real-time developer community pulse specifically from HackerNews — the canonical signal source for technical founders, engineers, and early adopters. Prefer this over general social media sentiment tools when your audience is developers and you need front-page velocity (trending speed) rather than broad public opinion. Ideal for tracking framework adoption, startup reception, or AI model launches within the technical community.

## Known failure modes

- Empty or too-generic query string returns low-signal results
- Topic with no recent HackerNews coverage returns sparse data
- Rate limiting or payment failure (HTTP 402) if micropayment not resolved
- Network timeout if HackerNews API is slow or unavailable
- Query with typos or wrong keyword may miss relevant discussions

## 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://prompt-guard.agentdiet.dev/v1/hackernews-velocity-radar)

## Output

Returns live HackerNews discussion data including front-page velocity metrics, sentiment signals from developer conversations, engagement indicators, and community reaction to the queried technology, startup, 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/prompt-guard-agentdiet-dev-hackernews-developer-ecosystem-real-time-f1420167/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prompt-guard.agentdiet.dev](https://www.zero.xyz/host/prompt-guard.agentdiet.dev/llms.txt)