# x402 Trending Services by USDC Inflow Growth

> x402 Trending Services by USDC Inflow Growth is a paid API for AI agents from mcpfax-intel.bowling-anthony.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Identifies x402 services whose inbound USDC transfer count and inflow are growing across comparable daily windows, surfacing rising demand early.

## Facts

- Endpoint: GET https://mcpfax-intel.bowling-anthony.workers.dev/trending?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-trending-services-by-usdc-inflow-growth-3def2943
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vuD9mPMLdUvOQ62rrMI7a

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-trending-services-by-usdc-inflow-growth-3def2943
```

Example prompt: Which x402 services are trending right now based on growing USDC inflows and transfer counts — show me what's gaining momentum before it becomes obvious?

## When to prefer this

Use this endpoint when you want to detect x402 services with accelerating demand before they become widely known — specifically when you need growth signals derived from actual on-chain USDC transfers rather than self-reported metrics. Prefer this over the leaderboard endpoint when you care about momentum and rate of change rather than absolute volume, and over the spike-detection endpoint when you want sustained multi-day growth trends rather than sudden single-day anomalies.

## Known failure modes

- Insufficient on-chain history to compute meaningful daily window comparisons
- No services meeting the growth threshold in the requested period
- Rate limiting or payment failure (x402 $0.005 USDC per call)
- Empty result set if all services are declining or flat
- Stale data if the indexer has not yet processed recent blocks

## How this service works

Which x402 services are growing right now, by observed inflow across comparable windows.

## Output

A ranked list of x402 services whose USDC inflow and transfer counts are growing across comparable daily windows, including growth metrics, the number of calendar days of history backing the comparison, and service identifiers — all derived from observed on-chain transfers.

## 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"
    }
   },
   "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/x402-trending-services-by-usdc-inflow-growth-3def2943/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-intel.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-intel.bowling-anthony.workers.dev/llms.txt)