# Amazon ASIN to GTIN Converter

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

Converts an Amazon ASIN to global trade identifiers (EAN-13, UPC, ISBN) for a given marketplace country

## Facts

- Endpoint: GET https://x402.openwebninja.com/realtime-amazon-data/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-converter-1163756d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CxDVfK_72Ow3MtyxklVyn

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-converter-1163756d
```

Example prompt: What are the EAN-13 and UPC barcodes for the Amazon product with ASIN B08N5WRWNW in the US marketplace?

## When to prefer this

Use this endpoint when you have an Amazon ASIN and need the corresponding globally-recognized product identifiers (UPC, EAN-13, ISBN) for cross-marketplace matching, inventory management, or barcode lookups. It supports 24 Amazon country marketplaces, making it ideal for international product data enrichment.

## Known failure modes

- Invalid or non-existent ASIN returns empty results or error status
- Unsupported country enum value causes validation error
- ASIN exists but has no GTIN mapping in the selected marketplace
- Rate limiting or payment failure with HTTP 402

## 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 object containing the ASIN, a list of global trade identifiers (each with a type such as EAN-13, UPC, or ISBN, and the actual code value), plus a 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-converter-1163756d/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)