# x402 Market Intel – Category Trends Time-Series Report

> x402 Market Intel – Category Trends Time-Series Report is a paid API for AI agents from x402-market-intel-mcp.mtree.workers.dev, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-15).

Returns a time-series trend report on x402 paid-API category dynamics, including demand deltas, new resource entries, seller concentration shifts, metadata-quality drift, and next build/proof recommendations.

## Facts

- Endpoint: POST https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/category_trends
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-market-intel-category-trends-time-series-report-842c9a3d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-qx9t6j1kmJqXKsOnmjaX

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-intel-category-trends-time-series-report-842c9a3d -d '<json body>'
```

Example prompt: Give me the latest x402 category trend report — I want to see which paid API categories are gaining or losing demand, any new resources entering the market, how seller concentration is shifting, and what you'd recommend I build or prove next.

## When to prefer this

Choose this endpoint when you need longitudinal, time-series trend intelligence about the x402 paid-API ecosystem rather than a point-in-time snapshot. It is specifically suited for builders deciding what category to enter next, analysts tracking category-level demand momentum, and agents that need to act on directional market signals rather than static rankings.

## Known failure modes

- Payment not received or x402 micropayment handshake fails — 402 response with payment instructions returned
- Invalid or missing POST body parameters — 400 bad request
- Category filter not recognized — empty result set or 404
- Upstream D1 database temporarily unavailable — 503 service unavailable
- Rate limit exceeded — 429 too many requests

## How this service works

Time-series trend report from hosted D1 x402 observations: category demand deltas, new resources, seller concentration shifts, metadata-quality drift, and next build/proof recommendation. Price 0.08 USDC on Base via x402. Free preview: https://x402-market-intel-mcp.mtree.workers.dev/preview/category_trends?source=x402_manifest. Demo: https://x402-market-intel-mcp.mtree.workers.dev/demo/category_trends. Contact: https://x402-market-intel-mcp.mtree.workers.dev/contact.

## Output

A structured time-series report covering: demand delta per category (growth/decline rates), count of newly listed x402 resources per category, seller concentration changes (HHI-style shifts), metadata quality drift scores, and a prioritized recommendation for the next category to build or submit proof for.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {
      "hours": {
       "type": "integer",
       "maximum": 168,
       "minimum": 1
      },
      "limit": {
       "type": "integer",
       "maximum": 50,
       "minimum": 1
      },
      "category": {
       "type": "string"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "next_build": "expand paid API discovery proof coverage",
  "category_trends": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-market-intel-category-trends-time-series-report-842c9a3d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-market-intel-mcp.mtree.workers.dev](https://www.zero.xyz/host/x402-market-intel-mcp.mtree.workers.dev/llms.txt)