# Hacker News Discussion Search: Product Discovery & User Research

> Hacker News Discussion Search: Product Discovery & User Research is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Searches public Hacker News stories for product discovery and user research, returning titles, links, scores, authors, and timestamps.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-next-community-product-discovery-researchers?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hacker-news-discussion-search-product-discovery-user-research-2d55a02d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EicaqBR770Yhm4cU3uZRO

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 hacker-news-discussion-search-product-discovery-user-research-2d55a02d -d '<json body>'
```

Example prompt: Search Hacker News for the top 5 discussions about product discovery and user research methods — I want story titles, links, scores, and who posted them.

## When to prefer this

Use this endpoint when you need to surface community-driven discussions from Hacker News specifically — particularly for product discovery, user research, and startup validation contexts. Prefer this over general web search when you want the tech-savvy HN audience's perspective, upvote-ranked signal quality, and structured metadata (score, author, timestamp) rather than raw web results.

## Known failure modes

- No results returned if query is too niche or specific — try broader search terms
- max_results exceeding 10 will be rejected or clamped
- API may return stale or cached results if Hacker News data is not updated in real time
- Ambiguous queries may return tangentially related stories with low relevance scores
- Service unavailable or payment failure may result in HTTP error response

## How this service works

Hacker News discussion search: product discovery and user research: Search public Hacker News stories for product discovery and user research. Returns story titles, links, scores, authors, and timestamps.

## Output

Returns a list of Hacker News stories matching the query, each containing the story title, a link to the original post, upvote score, author username, and publication timestamp — up to the requested number of results (max 10).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "product discovery and user research Research teams",
   "description": "Optional focused search query."
  },
  "max_results": {
   "type": "integer",
   "default": 5,
   "maximum": 10,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hacker-news-discussion-search-product-discovery-user-research-2d55a02d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)