# AgentDiet HN Pulse – Hacker News Digest Endpoint

> AgentDiet HN Pulse – Hacker News Digest Endpoint is a paid API for AI agents from arxiv-digest.agentdiet.dev, paid per call via x402 or MPP, $0.01/call, status unknown (last checked 2026-10-20).

Fetches a distilled, compressed pulse summary of Hacker News top stories and discussions via a pay-per-call GET endpoint

## Facts

- Endpoint: GET https://arxiv-digest.agentdiet.dev/v1/hn-pulse?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-hn-pulse-hacker-news-digest-endpoint-2b16731c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SuOX_zXscIqxxuJ282jbN

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 agentdiet-hn-pulse-hacker-news-digest-endpoint-2b16731c
```

Example prompt: Give me a quick HN Pulse digest of what's trending on Hacker News right now — I want it compressed and summarized so I can skim the highlights fast.

## When to prefer this

Choose this endpoint when you need a fast, pre-distilled summary of Hacker News content with a quantified compression ratio, especially in agent workflows where token efficiency matters and you want to pay only $0.01 USDC per call rather than scraping and summarizing HN yourself.

## Known failure modes

- Payment failure via x402/HTTP 402 if USDC balance is insufficient
- Empty or malformed query param may return minimal or generic data
- Rate limiting or upstream HN data unavailability may cause degraded responses
- Non-GET method may be rejected despite schema listing GET/POST

## How this service works

15-App Autonomous Business-to-Agent (B2A) API Hub & MCP Suite. Supports Web Distillation, On-Chain Risk, DEX Token Intelligence, B2B Lead Enrichment, Domain OSINT, Email Verification, SEC Filings, GitHub Audits, Prompt Firewall, and native HTTP 402 (x402 Base USDC).

## Output

Returns a JSON object with a 'status' field ('ok'), a 'data' object containing the distilled Hacker News content, and a 'roi_proof' object showing the compression_ratio_pct (e.g. 91.4%), indicating how much raw content was compressed into the digest.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "query": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "status": "ok",
  "roi_proof": {
   "compression_ratio_pct": 91.4
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-hn-pulse-hacker-news-digest-endpoint-2b16731c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from arxiv-digest.agentdiet.dev](https://www.zero.xyz/host/arxiv-digest.agentdiet.dev/llms.txt)