# OpenWebNinja GTIN to ASIN Converter

> OpenWebNinja GTIN to ASIN Converter is a paid API for AI agents from x402.openwebninja.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Converts a GTIN (barcode/UPC/EAN) product identifier to Amazon ASIN(s) with product details including price, rating, and sales rank

## Facts

- Endpoint: GET https://x402.openwebninja.com/realtime-ecommerce-data/amazon/gtin-to-asin
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openwebninja-gtin-to-asin-converter-5d2405c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kmfJP5aj66HZgsXJpm0QX

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 openwebninja-gtin-to-asin-converter-5d2405c3
```

Example prompt: I scanned a product barcode and got the GTIN 00012000161155 — can you find the matching Amazon ASIN and tell me its current price, star rating, and sales rank in the US?

## When to prefer this

Use this endpoint when you have a physical product barcode (UPC, EAN, GTIN) and need to find its corresponding Amazon listing, pricing, ratings, and sales rank. Ideal for price comparison tools, inventory management, product catalog enrichment, or any workflow that needs to bridge physical retail barcodes to Amazon marketplace data.

## Known failure modes

- GTIN not found in Amazon catalog — returns empty products array
- Invalid or malformed product_identifier — may return error or empty results
- Product exists but is unavailable in the requested country — returns empty or partial data
- Rate limiting or service unavailability — HTTP error response
- Unsupported country code — schema validation error

## How this service works

40+ public web-data, SERP, e-commerce, real-estate, finance and AI-search APIs, payable per call over x402 (USDC on Base, Polygon, Arbitrum). No account or API key required. Most endpoints $0.003; AI-model endpoints $0.005.

## Output

Returns an array of matched Amazon products including ASIN, canonical product URL, product title, main product image URL, displayed price, average star rating, total number of customer ratings, sales rank, and the rank category. Also includes a request ID and response status.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openwebninja-gtin-to-asin-converter-5d2405c3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.openwebninja.com](https://www.zero.xyz/host/x402.openwebninja.com/llms.txt)