73trust / 100

Product Code

by ISHOB in Developer tools

x402 APIPassing, checked 2 h ago

Look up a product barcode number: identify and validate EAN-13, EAN-8, UPC-A, UPC-E, GTIN-14, ISBN-13/10, ISSN and ISMN codes (wrong check digits are reported with the correct digit), convert between forms (GTIN-14, EAN-13, UPC-A, ISBN-10 <-> 13) and decode the GS1 prefix. Then fetch product data from open databases: name, brand, quantity, categories, image, labels, Nutri-Score (food, cosmetics, pet food via Open Food Facts) or title, authors, publisher and cover (books via Open Library).

GET
https://api.ishob.com/v1/product-code
Price
$0.001
per call in USDC
Uptime
100%
last 30 days
Response time
901 ms
1.2 s slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://api.ishob.com/v1/product-code

Each call costs $0.001 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.ishob.com/v1/product-code?code=3017620422003

Parameters

ParameterTypeRequiredDescription
codestringYesBarcode number: 8/12/13/14 digits or ISBN-10 (spaces and hyphens ignored), e.g. 3017620422003
lookupbooleanNoAlso fetch product / book data from open databases (false = validate and convert only) Default: true.

Example response

The provider's example. We can't check it without paying.

{
  "conversions": {
    "ean13": "3017620422003",
    "gtin14": "03017620422003"
  },
  "gs1_prefix": {
    "issued_by": "GS1 France",
    "prefix": "301"
  },
  "input": "3017620422003",
  "product": {
    "brand": "Nutella, Ferrero",
    "name": "Nutella",
    "nutriscore": "e",
    "quantity": "400 g"
  },
  "source": {
    "name": "Open Food Facts"
  },
  "type": "EAN-13",
  "valid": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.ishob.com/v1/product-code?code=3017620422003'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.ishob.com/v1/product-code?code=3017620422003' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.ishob.com%2Fv1%2Fproduct-code
const res = await pay("https://api.ishob.com/v1/product-code?code=3017620422003");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.ishob.com/v1/product-code?code=3017620422003")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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2 h agoPassed4021.1 s$0.001
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10 h agoPassed4021.1 s$0.001
15 h agoPassed4021.2 s$0.001
19 h agoPassed402691 ms$0.001
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23 h agoPassed402792 ms$0.001
27 h agoPassed402158 ms$0.001
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36 h agoPassed4021.0 s$0.001
45 h agoPassed40238 ms$0.001