# x402 Market Intelligence - Category Analysis

> x402 Market Intelligence - Category Analysis is a paid API for AI agents from x402-market-intel.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns aggregated listing counts, categorized market data, and historical trend data for a specific x402 API category to help builders assess market saturation before launching a new API.

## Facts

- Endpoint: GET https://x402-market-intel.fly.dev/v1/category/%7Bcategory%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-market-intelligence-category-analysis-de51af5f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bih5laJ1c7Bweb3Ae8pxk

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 x402-market-intelligence-category-analysis-de51af5f
```

Example prompt: Before I build a new x402 trading API, can you pull the x402 market intel for the 'trading' category so I can see how many listings already exist and whether the market is crowded?

## When to prefer this

Use this endpoint when you need to assess competitive density in a specific x402 API category before committing to build a new API, or when you want to track how a category's listing count is trending over time. It is the only known endpoint specifically aggregating x402 ecosystem listing counts by category with historical trend data.

## Known failure modes

- Invalid or unrecognized category name returns empty results or 404
- Payment failure on selected network (Base, Polygon, Arbitrum, Solana) results in 402 response requiring retry
- Category with no listings returns total_count of 0 and empty listings array
- Network timeout on fly.dev infrastructure may cause request to fail
- Trend data unavailable for very new categories with insufficient history

## How this service works

Market-gap analysis for the x402 ecosystem: aggregated, categorized listing counts across x402 discovery sources, plus historical trend data - see how crowded a category is before building a new x402 API. Accepts payment on Base, Polygon, Arbitrum, and Solana (USDC) - pick whichever network your wallet holds funds on.

## Output

A JSON response containing the requested category name, an array of current listings in that category, the total listing count, and a trend object with historical data points showing how listing counts have changed over time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "trend": {
   "...": "..."
  },
  "category": "trading",
  "listings": [
   "..."
  ],
  "total_count": 45
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-market-intelligence-category-analysis-de51af5f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-market-intel.fly.dev](https://www.zero.xyz/host/x402-market-intel.fly.dev/llms.txt)