# NOVA Trend Gear – Trend Extraction & Aggregation

> NOVA Trend Gear – Trend Extraction & Aggregation is a paid API for AI agents from nova-demand-worker.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Extracts and aggregates emerging trends from specified sources, regions, and topic focuses, returning structured trend data with content hashing.

## Facts

- Endpoint: POST https://nova-demand-worker.vercel.app/x402/trend?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nova-trend-gear-trend-extraction-aggregation-144e7f92
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e0kFEIv3k8PE7OQIQKPq7

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 nova-trend-gear-trend-extraction-aggregation-144e7f92 -d '<json body>'
```

Example prompt: Pull the top 10 emerging trends right now focused on AI and climate change, covering US and EU regions, from news and social sources using NOVA Trend Gear.

## When to prefer this

Choose this endpoint when you need structured, aggregated trend intelligence filtered by topic focus, geographic region, and source — particularly in agent workflows that require verifiable, hashable trend snapshots. Prefer it over generic web search when you want clean, machine-readable trend arrays with provenance and content hashing, and when paying per-call via x402/USDC on Base is acceptable.

## Known failure modes

- Empty trends/emerging arrays if no matching content found for given focus or region filters
- Payment failure if x402/USDC transaction on Base is not completed correctly
- Invalid input if focus array exceeds 10 items or limit exceeds 50
- Source filter may return no results if specified sources are unavailable or unsupported
- Rate limiting or quota exhaustion returning non-200 status

## How this service works

Machine-facing pay-per-call utility services using x402 on Base with USDC.

## Output

Returns a JSON object with ok status, the gear identifier ('trend-extraction-aggregation'), a product label ('NOVA Trend Gear'), an array of current trends, an array of emerging trends, a result count, and a SHA-256 content hash for verifying response integrity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "focus": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 10
  },
  "limit": {
   "type": "integer",
   "maximum": 50,
   "minimum": 1
  },
  "regions": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 20
  },
  "sources": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 10
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "gear": "trend-extraction-aggregation",
  "trends": [],
  "product": "NOVA Trend Gear",
  "emerging": [],
  "contentHash": "sha256:...",
  "resultCount": 10
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-trend-gear-trend-extraction-aggregation-144e7f92/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nova-demand-worker.vercel.app](https://www.zero.xyz/host/nova-demand-worker.vercel.app/llms.txt)