# claw402 AI500 Stats Endpoint

> claw402 AI500 Stats Endpoint is a paid API for AI agents from claw402.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-16).

Retrieves statistics data from the AI500 index via the claw402 x402 payment-gated API gateway, paid per-call with USDC.

## Facts

- Endpoint: GET https://claw402.ai/api/v1/nofx/ai500/stats
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/claw402-ai500-stats-endpoint-050db4df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bLUpRtNI8vYZ5Nj7Ly3z8

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 claw402-ai500-stats-endpoint-050db4df
```

Example prompt: Can you pull the latest AI500 stats from the claw402 gateway — just pay the $0.002 USDC fee from my wallet, no API key needed?

## When to prefer this

Use this endpoint when you need AI500 index statistics without requiring API key registration, prefer paying per-call with USDC via the x402 protocol, and want a low-friction crypto-wallet-based access model.

## Known failure modes

- Payment not received — 402 response if USDC payment is missing or insufficient
- Empty data array returned if no stats are currently available
- Malformed response if the upstream vergex.trade provider is unavailable
- Invalid properties filter leading to unexpected empty results

## How this service works

Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.

## Output

A JSON object with a numeric status code and a data array containing AI500 statistics, e.g. {"code": 0, "data": []}.

## Example request

```json
{
 "properties": "stats"
}
```

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "code": 0,
  "data": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/claw402-ai500-stats-endpoint-050db4df/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from claw402.ai](https://www.zero.xyz/host/claw402.ai/llms.txt)