# WorldData402 Barcode Product Lookup

> WorldData402 Barcode Product Lookup is a paid API for AI agents from worlddata402.worlddata402.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).

Looks up product information by EAN barcode, returning global market and reference data for that product.

## Facts

- Endpoint: POST https://worlddata402.worlddata402.workers.dev/v1/product/barcode/%7Bean%7D?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/worlddata402-barcode-product-lookup-26003f11
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yVx5n-omegKFRyxsjG7fP

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 worlddata402-barcode-product-lookup-26003f11 -d '<json body>'
```

Example prompt: Can you look up what product has the barcode 5901234123457 and tell me its name, brand, and category?

## When to prefer this

Choose this endpoint when you need to resolve a physical product EAN barcode to its metadata (name, brand, category) in a pay-per-call, no-subscription model using USDC on Base via the x402 protocol. Ideal for AI agents that encounter barcodes sporadically and want cost-efficient per-lookup pricing without committing to a SaaS subscription. Good fit for retail, e-commerce enrichment, supply chain, or consumer app contexts where barcodes drive product identification.

## Known failure modes

- Unknown or unregistered EAN barcode returns no results or a 404-equivalent
- Malformed EAN (wrong length or invalid check digit) may return a validation error
- Payment failure via x402/USDC results in a 402 Payment Required response with no data
- Rate limiting or service unavailability returns a 5xx error
- Some regional or niche products may have incomplete data fields

## How this service works

Global market, government and reference data for AI agents. Pay-per-call over x402 (USDC on Base mainnet).

## Output

Returns structured product information associated with the given EAN barcode, including product name, brand, manufacturer, category, and other available reference data sourced from global market databases.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/worlddata402-barcode-product-lookup-26003f11/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from worlddata402.worlddata402.workers.dev](https://www.zero.xyz/host/worlddata402.worlddata402.workers.dev/llms.txt)