# 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 2026-10-28).

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

## Facts

- Endpoint: POST https://hn-pulse.agentdiet.dev/api?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-28
- 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-9b04a1bf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_34zI-Op37NWpyLFcYvHyB

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-9b04a1bf -d '<json body>'
```

Example prompt: What's the current developer sentiment around LangChain on HackerNews — are people excited about it, or is there backlash? Pull the live discussions and front-page velocity.

## When to prefer this

Choose this endpoint when you need real-time, developer-community-specific sentiment about a technology, framework, startup, or AI model — particularly from the HackerNews audience, which skews toward engineers, founders, and technical decision-makers. Prefer this over generic social sentiment APIs when the HackerNews community's opinion is specifically relevant (e.g., evaluating open-source libraries, assessing developer adoption trends, or gauging technical founder reception of a startup).

## Known failure modes

- Empty or vague query returns no meaningful results
- HackerNews Algolia API downtime causes data gaps
- Very niche or misspelled keyword yields no matching discussions
- Topic with no recent HackerNews activity returns low-signal response
- Rate limiting or payment failure (HTTP 402) blocks the request

## 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/api)

## Output

Returns structured data on live HackerNews discussions matching the query keyword, including post scores, comment counts, front-page velocity metrics, and an aggregated developer sentiment signal for the 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/hn-pulse-agentdiet-dev-hackernews-developer-ecosystem-real-time-9b04a1bf/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)