# AgentDiet HackerNews Trends

> AgentDiet HackerNews Trends is a paid API for AI agents from mcp-gateway.agentdiet.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Fetches compressed, AI-ready trending topics and stories from Hacker News via the AgentDiet MCP gateway, paid per-call in USDC.

## Facts

- Endpoint: GET https://mcp-gateway.agentdiet.dev/v1/hackernews-trends?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-hackernews-trends-eef813e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iewfy8H0XaPSsx3r5ZFRC

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-hackernews-trends-eef813e5
```

Example prompt: What's trending on Hacker News right now — especially anything related to AI or open source? Pull the latest trends and give me a summary.

## When to prefer this

Choose this endpoint when you need a token-efficient, AI-optimized snapshot of Hacker News trending content — especially in agentic pipelines that pay per call via x402/USDC on Base. The 91%+ compression ratio makes it far more cost-effective than scraping HN directly or calling verbose APIs when operating under LLM context constraints. Prefer it over raw HN API wrappers when you need a pre-digested, structured trend signal rather than raw story data.

## Known failure modes

- Payment failure: 402 returned if USDC payment on Base is not settled correctly
- Empty results: data field may be empty if no trending content matches the query
- Gateway timeout: upstream HackerNews API may be slow or unavailable
- Invalid method: only GET/POST accepted; other methods return 405
- Schema mismatch: missing required 'input' object causes 400 validation error

## How this service works

Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.

## Output

Returns a JSON object with a 'data' field containing trending HackerNews stories or topics, a 'status' field ('ok'), and an 'roi_proof' object showing the compression ratio (e.g. 91.4%) — indicating the data has been heavily compressed for token-efficient delivery to AI agents.

## 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-hackernews-trends-eef813e5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-gateway.agentdiet.dev](https://www.zero.xyz/host/mcp-gateway.agentdiet.dev/llms.txt)