# 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, startup, framework, or AI model keyword.

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/tech-trends?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-f5d1b9bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kY4bVRuNnOX3YQmcdTwKq

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-f5d1b9bc
```

Example prompt: What's the current HackerNews sentiment and front-page velocity around Anthropic's Claude — are developers reacting positively or negatively in recent discussions?

## When to prefer this

Choose this endpoint when you need real-time, developer-community-specific sentiment from HackerNews rather than broad social media sentiment — ideal for gauging technical reception of frameworks, AI models, startups, or libraries among the developer ecosystem specifically. Prefer this over general social sentiment APIs when the target audience is developers and engineers.

## Known failure modes

- Empty or very short query string rejected due to minLength constraint
- Topic with no recent HackerNews presence returns sparse or empty sentiment data
- Payment failure via x402 if USDC balance is insufficient
- Rate limiting or service unavailability returning 402 or 5xx errors
- Ambiguous keyword may return mixed results from unrelated HackerNews threads

## 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/tech-trends)

## Output

Returns aggregated data from live HackerNews discussions including developer sentiment signals, front-page velocity metrics, and community reaction summaries for the queried technology, startup, library, or AI model 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-f5d1b9bc/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)