# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from hn-pulse.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 framework, startup, library, or AI model keyword.

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/dev-sentiment?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: hn-pulse.agentdiet.dev
- Website: https://hn-pulse.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/hn-pulse-agentdiet-dev-hackernews-developer-ecosystem-real-time-048255b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GE634DSp3CDqSpB7_TmRf

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 hn-pulse-agentdiet-dev-hackernews-developer-ecosystem-real-time-048255b1
```

Example prompt: What's the live developer sentiment on HackerNews about LangChain right now — is it trending on the front page and are the vibes mostly positive or negative?

## When to prefer this

Choose this endpoint when you need real-time, community-sourced developer opinion from HackerNews specifically — particularly for gauging technical reception of frameworks, AI models, or startups among a highly technical audience. Prefer this over general social sentiment tools when the target audience is developers and the signal source (HackerNews front-page velocity and comment sentiment) is the primary concern.

## Known failure modes

- Empty or whitespace query returns a validation error
- Very niche or obscure topics may return sparse or no HackerNews data
- Rate limits or payment failures (HTTP 402) may block the request
- HackerNews API downtime could result in stale or unavailable data
- Ambiguous queries (e.g. common words) may return irrelevant discussion 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://hn-pulse.agentdiet.dev/v1/dev-sentiment)

## Output

Returns live HackerNews-sourced data including developer sentiment signals, front-page velocity metrics, and discussion activity for the queried technology, startup, framework, 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/hn-pulse-agentdiet-dev-hackernews-developer-ecosystem-real-time-048255b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hn-pulse.agentdiet.dev](https://www.zero.xyz/host/hn-pulse.agentdiet.dev/llms.txt)