# HackerNews & Developer Ecosystem Real-Time Sentiment Pulse

> HackerNews & Developer Ecosystem Real-Time Sentiment Pulse is a paid API for AI agents from alpha-stream.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 for any framework, startup, library, or AI model

## Facts

- Endpoint: POST https://alpha-stream.agentdiet.dev/v1/dev-sentiment?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: alpha-stream.agentdiet.dev
- Website: https://alpha-stream.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/alpha-stream-agentdiet-dev-hackernews-developer-ecosystem-real-time-10f0cd5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4EI1S8nPood4pcUjPDIEu

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 alpha-stream-agentdiet-dev-hackernews-developer-ecosystem-real-time-10f0cd5d -d '<json body>'
```

Example prompt: What's the current developer sentiment on HackerNews about LangChain — are there any trending discussions and how fast is it moving on the front page?

## When to prefer this

Choose this endpoint when you need real-time, developer-community-specific sentiment rooted in HackerNews discussions rather than general social media or Twitter/X sentiment. Ideal for tracking how technical practitioners (engineers, founders, researchers) perceive a framework, AI model, or startup, especially when front-page velocity and discussion momentum matter. Prefer this over general web sentiment tools when the audience is specifically the developer and hacker community.

## Known failure modes

- Empty or very short query string returns validation error
- Query topic with no HackerNews activity may return empty or minimal sentiment data
- HackerNews API rate limits or outages may cause timeout or degraded results
- Overly broad queries may return noisy or aggregated sentiment with low confidence
- Payment failure (x402) results in 402 response blocking the request

## 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://alpha-stream.agentdiet.dev/v1/dev-sentiment)

## Output

Returns a structured object containing live HackerNews discussion data, front-page velocity signals, and aggregated developer sentiment for the queried topic — including active thread activity, momentum indicators, and community tone assessments.

## 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/alpha-stream-agentdiet-dev-hackernews-developer-ecosystem-real-time-10f0cd5d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha-stream.agentdiet.dev](https://www.zero.xyz/host/alpha-stream.agentdiet.dev/llms.txt)