# PennyRail x402 Trending Market Intel

> PennyRail x402 Trending Market Intel is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-21).

Returns trending market intelligence data via a paid x402 micropayment-gated endpoint

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/intel/market.x402-trending--x402-trending?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-x402-trending-market-intel-d35bdba5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y1dtdeVlV0vOxgvEDfBZD

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 pennyrail-x402-trending-market-intel-d35bdba5 -d '<json body>'
```

Example prompt: What markets or assets are trending right now? Pull the latest trending market intel for me.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call trending market intelligence feed without a subscription, particularly in x402-compatible agent workflows where micropayment gating is acceptable. Best suited for agents that need occasional trending data snapshots rather than continuous streaming feeds.

## Known failure modes

- 402 Payment Required if x402 payment header is missing or invalid
- Empty or malformed input object returns validation error
- Service unavailable if Vercel deployment is down
- Stale or empty trending data if upstream market data source is unavailable
- Rate limiting if too many requests are made in quick succession

## How this service works

Machine-readable settlement service

## Output

A JSON object containing trending market intelligence, likely including lists of trending assets, tokens, or market categories with associated momentum or popularity signals, returned after a successful x402 micropayment of $0.005 USDC.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-x402-trending-market-intel-d35bdba5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)