# GTIN Validator (`junipr/gtin-validator`) Actor

Validate GTIN/UPC/EAN/ISBN codes from product exports and flag invalid check digits, duplicates, and variant misuse.

- **URL**: https://apify.com/junipr/gtin-validator.md
- **Developed by:** [junipr](https://apify.com/junipr) (community)
- **Categories:** Developer tools, E-commerce
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $1.95 / 1,000 id validateds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md).

If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).


# README

## GTIN Validator

<!-- CHATGPT_20260706_PRICING_SEO_START -->
### Current Store Positioning

**Store title:** GTIN Validator

**Short description:** Validate GTIN/UPC/EAN/ISBN codes from product exports and flag invalid check digits, duplicates, and variant misuse.

**SEO title:** GTIN Validator — fast deterministic data utility

**SEO description:** Validate GTIN/UPC/EAN/ISBN codes from product exports and flag invalid check digits, duplicates, and variant misuse. Use it for fast, low-cost normalization or validation at scale with predictable pay-per-event pricing.

**Categories:** DEVELOPER_TOOLS, ECOMMERCE

**Keywords:** gtin, validator, tiny deterministic utility

### Current Pricing And Events

Pricing follows ChatGPT's 2026-07-06 guide for actors 71-300 and supersedes older pricing text in this package.

- Tier: U1 — Tiny deterministic utility
- Primary event: `identifier-validated` at $0.001950 per event
- Default max charge: $1.00
- Platform usage pass-through: OFF

Event set:

- `actor-start`: $0.001000
- `identifier-validated`: $0.001950 (primary)
- `report-generated`: $0.020000

### Public Task Concepts

- Normalize GTIN Validator records
- Validate GTIN Validator values in bulk
- Generate a small utility report for GTIN Validator
- Run a small capped GTIN Validator sample
- Create a GTIN Validator summary report
<!-- CHATGPT_20260706_PRICING_SEO_END -->

### What It Does

Validate GTIN/UPC/EAN/ISBN codes from product exports and flag invalid check digits, duplicates, and variant misuse.

This local package is part of the Junipr Apify actors 171-200 premium build for ChatGPT review.

### What It Does Not Do

- It does not call live Apify APIs.
- It does not publish, upload Store assets, create public tasks, or configure live PPE.
- It does not claim publish readiness.
- It does not make unbounded network calls in the local fixture path.

### Input Fields

Seed shape: inputItems, maxItems, includeReport

The tiny fixture is available at `examples/input.tiny.json` and mirrored at `fixtures/input.tiny.json` for the local runner.

### Output Fields

- `rowIndex`
- `originalCode`
- `normalizedCode`
- `codeType`
- `isValid`
- `checkDigitExpected`
- `warnings`
- `errors`

### Public Task Examples

#### Validate GTINs in a Shopify export

- Search intent: validate gtins in a shopify export
- Specific input: Fixture input shaped for validate gtins in a shopify export.
- Expected output: Dataset rows with rowIndex, originalCode, normalizedCode, codeType plus local KVS report evidence.
- Why run it: Ecommerce teams, merchants, feed managers, agencies would run this to get a bounded local proof before any live Apify review or production use.

#### Find duplicate UPCs across product variants

- Search intent: find duplicate upcs across product variants
- Specific input: Fixture input shaped for find duplicate upcs across product variants.
- Expected output: Dataset rows with rowIndex, originalCode, normalizedCode, codeType plus local KVS report evidence.
- Why run it: Ecommerce teams, merchants, feed managers, agencies would run this to get a bounded local proof before any live Apify review or production use.

#### Check EAN codes before merchant feed upload

- Search intent: check ean codes before merchant feed upload
- Specific input: Fixture input shaped for check ean codes before merchant feed upload.
- Expected output: Dataset rows with rowIndex, originalCode, normalizedCode, codeType plus local KVS report evidence.
- Why run it: Ecommerce teams, merchants, feed managers, agencies would run this to get a bounded local proof before any live Apify review or production use.

#### Separate valid and invalid ISBN-style catalog IDs

- Search intent: separate valid and invalid isbn-style catalog ids
- Specific input: Fixture input shaped for separate valid and invalid isbn-style catalog ids.
- Expected output: Dataset rows with rowIndex, originalCode, normalizedCode, codeType plus local KVS report evidence.
- Why run it: Ecommerce teams, merchants, feed managers, agencies would run this to get a bounded local proof before any live Apify review or production use.

#### Audit marketplace GTIN fields for launch cleanup

- Search intent: audit marketplace gtin fields for launch cleanup
- Specific input: Fixture input shaped for audit marketplace gtin fields for launch cleanup.
- Expected output: Dataset rows with rowIndex, originalCode, normalizedCode, codeType plus local KVS report evidence.
- Why run it: Ecommerce teams, merchants, feed managers, agencies would run this to get a bounded local proof before any live Apify review or production use.

### Tests

- Actor-specific fixture tests live in `test/gtin-validator.test.ts`.
- Node-based local suites validate dataset schema conformance, output samples, local smoke runs, and PPE guard behavior.

### FAQ

#### Is this live on Apify?

No. This is a local package for ChatGPT review only.

#### Is it publish-ready?

No. It needs later live tiny-run validation and console configuration before any publication decision.

# Actor input Schema

## `inputItems` (type: `array`):

Actor-specific records or URLs to process.
## `domains` (type: `array`):

Domain fixture records or domain strings.
## `urls` (type: `array`):

URL fixture records or URL strings.
## `maxItems` (type: `integer`):

Hard cap for processed items.
## `maxDomains` (type: `integer`):

Hard cap for processed domains.
## `timeoutMs` (type: `integer`):

Local/live request timeout cap in milliseconds.
## `includeReport` (type: `boolean`):

Write KVS Markdown and JSON report outputs.
## `includeSummary` (type: `boolean`):

Write summary KVS output.
## `strictMode` (type: `boolean`):

Use stricter validation thresholds.
## `fixtureMode` (type: `boolean`):

Use local deterministic fixtures. Live lookups remain off by default.
## `maxChargeUsd` (type: `number`):

Local PPE guard cap before paid rows stop gracefully.

## Actor input object example

```json
{
  "maxItems": 50,
  "maxDomains": 50,
  "timeoutMs": 5000,
  "includeReport": true,
  "includeSummary": true,
  "strictMode": false,
  "fixtureMode": true,
  "maxChargeUsd": 1
}
````

# Actor output Schema

## `dataset` (type: `string`):

Structured rows emitted by the actor.

## `report` (type: `string`):

Run summary report stored in the default key-value store.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("junipr/gtin-validator").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("junipr/gtin-validator").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call junipr/gtin-validator --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=junipr/gtin-validator",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "GTIN Validator",
        "description": "Validate GTIN/UPC/EAN/ISBN codes from product exports and flag invalid check digits, duplicates, and variant misuse.",
        "version": "1.0",
        "x-build-id": "bCNCaUjsKY9XzlJfi"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/junipr~gtin-validator/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-junipr-gtin-validator",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/junipr~gtin-validator/runs": {
            "post": {
                "operationId": "runs-sync-junipr-gtin-validator",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/junipr~gtin-validator/run-sync": {
            "post": {
                "operationId": "run-sync-junipr-gtin-validator",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "properties": {
                    "inputItems": {
                        "title": "Input items",
                        "type": "array",
                        "description": "Actor-specific records or URLs to process."
                    },
                    "domains": {
                        "title": "Domains",
                        "type": "array",
                        "description": "Domain fixture records or domain strings."
                    },
                    "urls": {
                        "title": "URLs",
                        "type": "array",
                        "description": "URL fixture records or URL strings."
                    },
                    "maxItems": {
                        "title": "Maximum items",
                        "minimum": 1,
                        "maximum": 10000,
                        "type": "integer",
                        "description": "Hard cap for processed items.",
                        "default": 50
                    },
                    "maxDomains": {
                        "title": "Maximum domains",
                        "minimum": 1,
                        "maximum": 10000,
                        "type": "integer",
                        "description": "Hard cap for processed domains.",
                        "default": 50
                    },
                    "timeoutMs": {
                        "title": "Timeout per item",
                        "minimum": 500,
                        "maximum": 60000,
                        "type": "integer",
                        "description": "Local/live request timeout cap in milliseconds.",
                        "default": 5000
                    },
                    "includeReport": {
                        "title": "Include report",
                        "type": "boolean",
                        "description": "Write KVS Markdown and JSON report outputs.",
                        "default": true
                    },
                    "includeSummary": {
                        "title": "Include summary",
                        "type": "boolean",
                        "description": "Write summary KVS output.",
                        "default": true
                    },
                    "strictMode": {
                        "title": "Strict mode",
                        "type": "boolean",
                        "description": "Use stricter validation thresholds.",
                        "default": false
                    },
                    "fixtureMode": {
                        "title": "Fixture mode",
                        "type": "boolean",
                        "description": "Use local deterministic fixtures. Live lookups remain off by default.",
                        "default": true
                    },
                    "maxChargeUsd": {
                        "title": "Maximum charge USD",
                        "minimum": 0.01,
                        "maximum": 100,
                        "type": "number",
                        "description": "Local PPE guard cap before paid rows stop gracefully.",
                        "default": 1
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```
