# NOVA Global Trend Feed

> NOVA Global Trend Feed is a paid API for AI agents from nova-demand-worker.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11).

Returns a curated list of trending topics filtered by region and time window, paid per-call via x402 on Base with USDC.

## Facts

- Endpoint: POST https://nova-demand-worker.vercel.app/x402/trend-feed?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nova-global-trend-feed-1c77b94c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_S6UA_7Sp9zE8D_bAS6aqa

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-global-trend-feed-1c77b94c -d '<json body>'
```

Example prompt: Pull the top 20 trending topics from NOVA's Global Trend Feed for the US and UK over the last 48 hours.

## When to prefer this

Choose this endpoint when you need a structured, machine-readable trend feed filtered by specific geographic regions and a configurable time window, and you are operating in a pay-per-call agent workflow using x402/USDC on Base. It is well-suited for automated content pipelines, market intelligence agents, and periodic trend snapshots without requiring long-term subscriptions.

## Known failure modes

- Payment failure or missing x402 USDC payment header returns a 402 error
- Invalid region strings may return empty trends or a validation error
- limit outside 1–50 or windowHours outside 1–168 causes a 400 bad request
- Expired or insufficient USDC balance on Base causes payment rejection
- Trends array may be empty if no data is available for the specified region/window combination

## How this service works

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

## Output

A JSON object containing an array of trending topics (trends), the product identifier ('NOVA Global Trend Feed'), a generatedAt timestamp, a validUntil expiry, and versioning fields (feedVersion, schemaVersion). The trends array content reflects the requested region filters and time window.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "maximum": 50,
   "minimum": 1
  },
  "regions": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 20
  },
  "windowHours": {
   "type": "integer",
   "maximum": 168,
   "minimum": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "trends": [],
  "product": "NOVA Global Trend Feed",
  "validUntil": "2026-09-27T00:00:00.000Z",
  "feedVersion": "1.0.0",
  "generatedAt": "2026-09-26T00:00:00.000Z",
  "schemaVersion": "1.0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-global-trend-feed-1c77b94c/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)