Barcode product lookup

Look up a product by its UPC/EAN barcode number via Open Food Facts (open data): name, brand, category, quantity, and nutrition grade. Pairs with /api/barcode-decode (image → number → product). ?code=737628064502

Input

Field	Type	Description
code *	string	UPC/EAN barcode digits (8-14)

Example output

{
  "code": "737628064502",
  "found": true,
  "product": {
    "name": "Thai peanut noodle kit",
    "brands": "Simply Asia",
    "categories": "Meals",
    "quantity": "155 g",
    "nutritionGrade": "d",
    "countries": "United States"
  }
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/barcode-lookup?code=737628064502"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/barcode-lookup?code=737628064502");

Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

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