# 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 2026-10-21).

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

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/hackernews-velocity-radar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- 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-5fc70c60
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jAbIUoMm7PmVtOd1xJ4Ag

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-5fc70c60
```

Example prompt: What's the current HackerNews sentiment and front-page velocity for 'Rust programming language' — are developers buzzing about it right now?

## When to prefer this

Choose this endpoint when you need real-time developer community sentiment specifically from HackerNews — the go-to source for tech/startup discourse — rather than general social media sentiment. It is ideal for tracking how developers react to new frameworks, AI models, or startup launches, especially when front-page velocity and community discussion depth matter more than mainstream social metrics.

## Known failure modes

- Empty or very niche query keyword returns no HackerNews results
- Payment failure via x402 results in 402 response before data is returned
- HackerNews API downtime or rate limiting may delay or block live results
- Ambiguous keywords (e.g. single-letter names) may return irrelevant discussions
- Overly broad queries may return unfocused or mixed sentiment signals

## 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, sentiment signals, and developer community activity for the queried technology, startup, or framework keyword.

## 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-5fc70c60/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)