# Hacker News Search: Web Search Quality & Retrieval

> Hacker News Search: Web Search Quality & Retrieval is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Searches public Hacker News stories specifically about web search quality and retrieval, returning story links, scores, comments, authors, and dates.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-hn-web-search-quality-agent-builders?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hacker-news-search-web-search-quality-retrieval-7b2ce742
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MrAZPVlURMHpWGjbjm2rM

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-search-web-search-quality-retrieval-7b2ce742 -d '<json body>'
```

Example prompt: Search Hacker News for up to 7 stories about web search quality and retrieval — I want to see what the community is currently discussing, including links, scores, and comment counts.

## When to prefer this

Choose this endpoint when you specifically need Hacker News community perspectives on web search quality and retrieval — it is pre-scoped to that topic, making it more targeted than a general HN search API. Prefer it when you want curated tech-community discourse (scores, comments, authors) rather than raw web search results or academic papers.

## Known failure modes

- Query returns zero results if no matching HN stories exist for the given terms
- max_results outside 1–10 range rejected with validation error
- Service unavailable if upstream Hacker News API or datapackvibe.com is down
- Payment failure if USDC balance is insufficient for the $0.01 per-call fee

## How this service works

Hacker News search: web search quality and retrieval: Search public Hacker News stories about web search quality and retrieval. Returns story links, scores, comments, authors, and dates.

## Output

Returns a list of Hacker News stories matching the query, each including the story title, URL, upvote score, number of comments, author username, and publication date — up to the requested number of results (max 10).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "web search quality and retrieval Agent builders",
   "description": "Optional focused 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-search-web-search-quality-retrieval-7b2ce742/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)