# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from whale-momentum.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://whale-momentum.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: whale-momentum.agentdiet.dev
- Website: https://whale-momentum.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/whale-momentum-agentdiet-dev-hackernews-developer-ecosystem-real-time-d2a1608f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4wlI66K0QFjI4ZPZhhrkP

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 whale-momentum-agentdiet-dev-hackernews-developer-ecosystem-real-time-d2a1608f
```

Example prompt: What's the current developer sentiment around LangChain on HackerNews — is it trending positively or negatively, and how fast is it moving on the front page right now?

## When to prefer this

Choose this endpoint when you need real-time, live developer community sentiment specifically from HackerNews — not general social media or Twitter sentiment. Ideal when evaluating technology adoption, startup reception, framework popularity, or AI model buzz among technical audiences. Prefer this over generic sentiment APIs when the audience is specifically developers and the signal source needs to be HackerNews discussions and front-page velocity.

## Known failure modes

- Empty or very niche query term returns no HackerNews results
- HackerNews API rate limits or downtime cause degraded data freshness
- Ambiguous keyword (e.g. 'apple') may return mixed unrelated results
- Payment failure via x402 protocol blocks the request
- Response schema is untyped (returns generic object), so output structure may vary

## 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://whale-momentum.agentdiet.dev/v1/tech-trends)

## Output

Returns a structured object containing live HackerNews discussion data, front-page velocity metrics, and aggregated developer sentiment signals for the queried technology, startup, framework, or AI model keyword. Likely includes sentiment scores, discussion counts, velocity trends, and notable comment themes.

## 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/whale-momentum-agentdiet-dev-hackernews-developer-ecosystem-real-time-d2a1608f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whale-momentum.agentdiet.dev](https://www.zero.xyz/host/whale-momentum.agentdiet.dev/llms.txt)