# x402 Statistics — Facilitator Market Share API

> x402 Statistics — Facilitator Market Share API is a paid API for AI agents from x402stats.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Returns per-facilitator x402 protocol statistics including 30-day market share, active seller counts, and payment volume in USD across supported chains

## Facts

- Endpoint: GET https://x402stats.io/api/x402/facilitators
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-statistics-facilitator-market-share-api-5ab54341
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wli9-q4Yy9ahtgyhL1YxL

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-statistics-facilitator-market-share-api-5ab54341
```

Example prompt: Pull the current x402 facilitator market share data — I want to see which facilitators are leading by 30-day volume and how many sellers each one has on Base and other chains.

## When to prefer this

Use this endpoint when you need facilitator-level breakdown of x402 ecosystem metrics — specifically market share, seller counts, and volume per facilitator — rather than aggregate protocol-wide stats. Prefer this over generic blockchain analytics when you want x402-specific, wash-filtered facilitator rankings published with a transparent methodology.

## Known failure modes

- Invalid or malformed query parameters return an empty result set
- API key or payment failure returns 402 or 401 error
- Data may lag by up to 24 hours if the aggregation pipeline is delayed
- If a facilitator has no activity in the window, it may be omitted from results
- Network timeout for slow downstream chain data ingestion

## How this service works

Independent x402 protocol adoption statistics: daily payment volume, active sellers, buyers, and facilitator market share across every chain — wash-filtered organic metrics with published methodology. Free CSV & JSON.

## Output

A JSON array where each object represents one x402 facilitator, containing: facilitator ID (e.g. 'coinbase'), supported chains (e.g. ['base']), 30-day market share as a decimal (e.g. 0.38), 30-day active seller count, and 30-day volume in USD. Data is wash-filtered for organic metrics.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": [
  {
   "id": "coinbase",
   "chains": [
    "base"
   ],
   "share30d": 0.38,
   "sellers30d": 21000,
   "volumeUsd30d": 285000
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-statistics-facilitator-market-share-api-5ab54341/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402stats.io](https://www.zero.xyz/host/x402stats.io/llms.txt)