Product Code
by ISHOB in Developer tools
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).
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
Reliability
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=3017620422003Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
code | string | Yes | Barcode number: 8/12/13/14 digits or ISBN-10 (spaces and hyphens ignored), e.g. 3017620422003 |
lookup | boolean | No | Also 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 --decodeJavaScript: 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
We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 2 h ago | Passed | 402 | 1.1 s | $0.001 |
| 6 h ago | Passed | 402 | 901 ms | $0.001 |
| 10 h ago | Passed | 402 | 1.1 s | $0.001 |
| 15 h ago | Passed | 402 | 1.2 s | $0.001 |
| 19 h ago | Passed | 402 | 691 ms | $0.001 |
Show 5 older checks
| 23 h ago | Passed | 402 | 792 ms | $0.001 |
| 27 h ago | Passed | 402 | 158 ms | $0.001 |
| 31 h ago | Passed | 402 | 970 ms | $0.001 |
| 36 h ago | Passed | 402 | 1.0 s | $0.001 |
| 45 h ago | Passed | 402 | 38 ms | $0.001 |