# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from json-repair.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 topic.

## Facts

- Endpoint: GET https://json-repair.agentdiet.dev/v1/yc-launch-tracker?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: json-repair.agentdiet.dev
- Website: https://json-repair.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/json-repair-agentdiet-dev-hackernews-developer-ecosystem-real-time-2f35288a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DHkZHuGNzne2LRl_ecNrS

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 json-repair-agentdiet-dev-hackernews-developer-ecosystem-real-time-2f35288a
```

Example prompt: What's the current HackerNews sentiment and developer buzz around LangChain — any trending discussions or front-page velocity I should know about?

## When to prefer this

Choose this endpoint when you need real-time developer community sentiment specifically from HackerNews — ideal for tracking YC startup launches, framework adoption trends, or AI model reception among technical audiences. Prefer this over generic social listening tools when the target audience is developers and the HackerNews signal is the priority.

## Known failure modes

- Empty or too-broad query returns low-signal results with minimal matching threads
- Very niche or brand-new topics may have no HackerNews data yet, returning sparse results
- Payment failure via x402 returns HTTP 402 before any data is fetched
- Rate limiting or upstream HackerNews API unavailability may return error or stale data

## 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://json-repair.agentdiet.dev/v1/yc-launch-tracker)

## Output

Returns live HackerNews discussion data including sentiment signals, front-page velocity metrics, and developer opinion aggregates for the queried topic, 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/json-repair-agentdiet-dev-hackernews-developer-ecosystem-real-time-2f35288a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from json-repair.agentdiet.dev](https://www.zero.xyz/host/json-repair.agentdiet.dev/llms.txt)