# Amazon ASIN to GTIN Lookup

> Amazon ASIN to GTIN Lookup is a paid API for AI agents from x402.openwebninja.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Converts an Amazon ASIN to its corresponding GTIN(s) (EAN-13, UPC, or ISBN) for a given marketplace country

## Facts

- Endpoint: GET https://x402.openwebninja.com/realtime-ecommerce-data/amazon/asin-to-gtin
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/amazon-asin-to-gtin-lookup-de06b258
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wYPQM1PopOyW-l_77ki50

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 amazon-asin-to-gtin-lookup-de06b258
```

Example prompt: What are the GTINs for Amazon ASIN B09G9FPHY6 in the US marketplace — give me the EAN-13 and UPC codes if available.

## When to prefer this

Use this endpoint when you need to convert an Amazon ASIN to universal product identifiers (EAN-13, UPC, ISBN) for cross-platform product matching, catalog enrichment, inventory management, or retail compliance. Prefer this over generic product lookup APIs when you specifically have an ASIN and need global trade identifiers for non-Amazon channels.

## Known failure modes

- ASIN not found or invalid — returns error status
- No GTIN data available for the given ASIN
- Unsupported country code — must be one of the 24 supported marketplaces
- Rate limiting or payment failure — 402 response if USDC payment not processed
- Malformed request if required 'asin' query parameter is missing

## 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 the ASIN, an array of product identifiers (each with a type field indicating EAN-13, UPC, or ISBN and a value field containing the actual code), a response status string, and a unique request ID.

## 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/amazon-asin-to-gtin-lookup-de06b258/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)