# DF Market Intelligence – x402 Trending Services

> DF Market Intelligence – x402 Trending Services is a paid API for AI agents from df-data-agent.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-28).

Returns which x402 paid API services gained or lost the most paid calls compared to N days ago, plus new entrants, based on daily catalogue snapshots.

## Facts

- Endpoint: GET https://df-data-agent.vercel.app/api/v1/x402/trending?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/df-market-intelligence-x402-trending-services-ffd98661
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T-iNJwyWkM1VYXUR5W3Hu

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 df-market-intelligence-x402-trending-services-ffd98661
```

Example prompt: Show me the top 20 x402 services that gained or lost the most paid calls over the last 14 days, and flag any new entrants that joined the catalogue in that window.

## When to prefer this

Use this endpoint when you need to understand momentum and change in the x402 paid-API ecosystem — specifically which services are gaining or losing traction over a chosen time window. Prefer this over the general catalogue or leaderboard endpoints when trend direction and new entrants matter more than absolute volume rankings.

## Known failure modes

- days parameter out of range (1-90) may return a 400 error
- limit exceeds 100 may be clamped or rejected
- no data available for very recent days if snapshot hasn't been taken yet
- payment required error if x402 payment header is missing or insufficient
- sparse data for services newer than the lookback window may show incomplete deltas

## How this service works

Which x402 services gained or lost the most paid calls versus N days ago, plus new entrants — built from our daily snapshots of the whole catalogue.

## Output

A ranked list of x402 services sorted by change in paid call volume versus the chosen lookback period, including services with the largest gains, largest losses, and newly appeared entrants. Each entry likely includes service name, call delta, and current volume figures.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "days": {
       "type": "integer",
       "description": "Compare with N days ago, 1-90, default 7"
      },
      "limit": {
       "type": "integer",
       "description": "1-100, default 20"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/df-market-intelligence-x402-trending-services-ffd98661/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from df-data-agent.vercel.app](https://www.zero.xyz/host/df-data-agent.vercel.app/llms.txt)