# Product Availability Checker

> Product Availability Checker is a paid API for AI agents from elon.tail49499f.ts.net, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Checks the stock/availability status of a product at a given public URL and returns structured availability data (e.g. InStock, OutOfStock).

## Facts

- Endpoint: POST https://elon.tail49499f.ts.net/product/availability
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/product-availability-checker-ad387fb9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g7VZOt5G1XcmvknTROcuL

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 product-availability-checker-ad387fb9 -d '<json body>'
```

Example prompt: Can you check if the product at https://www.example.com/products/blue-sneakers is currently in stock?

## When to prefer this

Use this endpoint when you need a quick, structured availability signal for a specific product URL without scraping the full page yourself. Ideal for pre-purchase checks, restock monitoring, or competitive intelligence on ecommerce listings. Prefer this over general web scrapers when you specifically need availability/stock status as a clean, parsed field.

## Known failure modes

- URL is not a public product page — may return unexpected or null availability
- Page requires authentication or JavaScript rendering — extraction may fail
- Product page structure is non-standard — availability field may not be detected
- Invalid or malformed URL input — request will fail with an error
- Rate limiting or site blocking — the target page may reject the crawler

## How this service works

Curated x402 website intelligence API for autonomous AI agents. 24 high-value paid tools covering web content, company research, ecommerce product intelligence, SEO, security and domain trust.

## Output

A JSON object containing an 'availability' field with a value such as 'InStock' or 'OutOfStock', indicating whether the product at the given URL is currently available for purchase.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Public HTTP or HTTPS URL to analyze"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "availability": "InStock"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/product-availability-checker-ad387fb9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from elon.tail49499f.ts.net](https://www.zero.xyz/host/elon.tail49499f.ts.net/llms.txt)