# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from x402-audit.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

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

## Facts

- Endpoint: POST https://x402-audit.agentdiet.dev/v1/hn-pulse?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: x402-audit.agentdiet.dev
- Website: https://x402-audit.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/x402-audit-agentdiet-dev-hackernews-developer-ecosystem-real-time-efa0b4b9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__0liBS-co81mngXsLcae6

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 x402-audit-agentdiet-dev-hackernews-developer-ecosystem-real-time-efa0b4b9 -d '<json body>'
```

Example prompt: What's the current developer sentiment on HackerNews around the Rust programming language — are people excited, critical, or indifferent about it right now?

## When to prefer this

Choose this endpoint when you need real-time developer community sentiment specifically from HackerNews — the canonical signal source for technical founders, AI researchers, and developer-tooling decisions. Prefer it over general social media sentiment APIs when your audience is developers, when you need front-page velocity as a trend signal, or when evaluating how a technical product or framework is perceived by the engineering community right now.

## Known failure modes

- Empty or too-generic query returns low-signal or ambiguous results
- HackerNews API downtime causes fetch failures or stale data
- Very niche or obscure topics may return no matching discussions
- Payment failure (HTTP 402) if USDC balance is insufficient
- Rate limiting if many queries are issued rapidly without idempotency keys

## 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://x402-audit.agentdiet.dev/v1/hn-pulse)

## Output

Returns live HackerNews sentiment data for the queried topic, including developer discussion summaries, front-page velocity signals, and an aggregated sentiment pulse reflecting the developer community's current mood and engagement level around the given technology, startup, or AI model.

## 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/x402-audit-agentdiet-dev-hackernews-developer-ecosystem-real-time-efa0b4b9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-audit.agentdiet.dev](https://www.zero.xyz/host/x402-audit.agentdiet.dev/llms.txt)