# 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 keyword.

## Facts

- Endpoint: GET https://json-repair.agentdiet.dev/v1/hackernews-velocity-radar?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-07a46e2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bmya8g0koI0Ri8oP9YYwE

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-07a46e2a
```

Example prompt: What's the current HackerNews sentiment and discussion velocity around 'Mistral AI' right now — are developers excited or skeptical?

## When to prefer this

Choose this endpoint when you need real-time developer community sentiment and discussion velocity specifically from HackerNews — the canonical source of signal for technical founders, engineers, and the startup ecosystem. Prefer this over general social sentiment APIs when your audience is developers or when you care about HackerNews front-page traction as a proxy for technical credibility.

## Known failure modes

- Empty or too-broad query returning noisy or irrelevant results
- Keyword with no HackerNews history returning empty sentiment data
- Payment failure via x402 micropayment protocol returning 402 error
- Rate limiting or API timeout returning a 429 or 503 error
- Misspelled or ambiguous keyword matching unintended topics

## 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/hackernews-velocity-radar)

## Output

Returns a structured object containing HackerNews discussion velocity, front-page appearance frequency, and developer sentiment signals for the queried keyword, drawn from live HackerNews data.

## 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-07a46e2a/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)