# PricePilot402 Top GMV Market Rankings

> PricePilot402 Top GMV Market Rankings is a paid API for AI agents from pricepilot402.pricepilot402-arya.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns ranked categories of Base USDC x402 API endpoints sorted by estimated visible gross merchandise volume (GMV)

## Facts

- Endpoint: GET https://pricepilot402.pricepilot402-arya.workers.dev/v1/market/top-gmv
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pricepilot402-top-gmv-market-rankings-ebd10cf6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bo6BRwLdNMbAy4ubFuh3l

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 pricepilot402-top-gmv-market-rankings-ebd10cf6
```

Example prompt: What are the top x402 API categories on Base USDC right now ranked by estimated GMV — show me the market activity leaderboard?

## When to prefer this

Use this endpoint when you need a quick market-level overview of which x402 API categories are generating the most economic activity on Base USDC — ideal for market research, competitive analysis, or deciding which x402 category to build in. Prefer this over raw on-chain queries when you want pre-ranked, human-readable category summaries rather than raw transaction logs.

## Known failure modes

- No payment attached — returns 402 Payment Required since this endpoint itself costs $0.05 USDC via x402
- Stale GMV data if on-chain activity hasn't been recently indexed
- Empty or sparse results if few x402 endpoints have processed payments recently
- Network/worker timeout if Cloudflare edge is overloaded
- Invalid route returns 404 if path is incorrect

## How this service works

Estimate visible GMV for x402 endpoints. Rank Base USDC x402 API categories by market activity

## Output

A ranked list of x402 API categories on Base USDC ordered by estimated visible gross merchandise volume, including activity scores or volume estimates per category to indicate relative market size and demand.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pricepilot402-top-gmv-market-rankings-ebd10cf6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pricepilot402.pricepilot402-arya.workers.dev](https://www.zero.xyz/host/pricepilot402.pricepilot402-arya.workers.dev/llms.txt)