GTIN Validation

Advanced GTIN validation with 18 fraud detection algorithms, mathematical check digit verification, and comprehensive business intelligence. Protect your business from fake GTINs and invalid product identifiers.

POST /api/v2/gtin/validate

Sophisticated GTIN validation with fraud pattern detection and business intelligence.

Anti-Fraud Features

🛡️

18 Fraud Patterns

Sequential, repeating, placeholder, alternating detection

🛡️

Check Digit Math

Mathematical verification for all GTIN formats

🛡️

Business Intelligence

Revenue impact and priority assessment

🛡️

Batch Processing

Validate up to 100 GTINs per request

Understanding GTIN Validation Scoring

GTIN validation is a critical component of ValidationCore's dual scoring system, directly impacting both GMC compliance and marketplace performance scores.

GMC Compliance Impact

(Critical)

GTIN validity directly affects: Product approval for Google Shopping and ads

Critical Factor: Invalid or fake GTINs can cause complete feed rejection

Invalid GTIN = 0% Compliance

Product cannot be approved for Google Merchant Center

Performance Impact

(Revenue)

Valid GTINs enable: Product matching, price comparison, and enhanced visibility

Revenue Impact: Products without valid GTINs lose competitive advantage

Invalid GTIN = $2,500+ revenue risk

Lost visibility and marketplace performance

GTIN Validation Scoring Components

Mathematical Validity (0-50 points)

Check digit verification and format compliance

Fraud Pattern Detection (0-50 points)

18 fraud algorithms and business intelligence

GTIN Revenue Impact Intelligence

Critical GTIN Issues:

$2,500+ risk

High Risk Issues:

$1,800+ risk

Priority Assessment:

Always Critical

Common GTIN Issues by Impact:

Fake/Sequential GTINs $2,500+ impact

Check Digit Errors $1,800+ impact

Format Violations $1,200+ impact

Category-Specific GTIN Requirements

Electronics GTIN Required

High revenue impact

Automotive GTIN Critical

Part matching essential

Health & Beauty GTIN Required

Brand verification

Apparel GTIN Recommended

Style matching

Home & Garden GTIN Optional

Lower priority

Sporting Goods GTIN Recommended

Equipment matching

Complete Scoring Methodology

Learn how GTIN validation integrates with our dual scoring system

View Full Guide

Fraud Detection Patterns

Our system detects 18 different fake GTIN patterns commonly used by fraudsters:

❌

Sequential Patterns

Consecutive numbers that are mathematically generated

0123456789012 ❌ FAKE

1234567890123 ❌ FAKE

9876543210987 ❌ FAKE

Risk: Critical | Revenue Impact: $2,500+

❌

Repeating Patterns

Same digits repeated throughout the GTIN

1111111111111 ❌ FAKE

9999999999999 ❌ FAKE

0000000000000 ❌ FAKE

Risk: Critical | Revenue Impact: $1,800+

⚠️

Placeholder Patterns

Common placeholder values used in templates

1000000000000 ⚠️ SUSPECT

0000000000001 ⚠️ SUSPECT

1234567800000 ⚠️ SUSPECT

Risk: High | Revenue Impact: $1,200+

✅

Valid GTINs

Legitimate GTINs with proper check digits

8806094375820 ✅ VALID

0885909950805 ✅ VALID

3614272049783 ✅ VALID

Risk: None | Revenue Impact: $0

🏆 Competitive Advantage

Fraud Patterns

vs competitors' 0-3

98%

Detection Accuracy

vs basic format checking

$2,500

Avg Revenue Impact

per fake GTIN detected

Complete Pattern Detection Capabilities

Sequential ascending ❌

Sequential descending ❌

All same digits ❌

Alternating patterns ❌

Template placeholders ⚠️

Common test values ⚠️

Keyboard sequences ❌

Mathematical sequences ❌

Partial patterns ⚠️

Mirror patterns ❌

Default values ⚠️

Generator artifacts ❌

Increment patterns ❌

Sample data patterns ⚠️

Palindrome patterns ❌

System placeholders ⚠️

Format violations ❌

Weak patterns ⚠️

Legend: ❌ Critical Risk | ⚠️ High Risk | All patterns include revenue impact analysis

Pricing

Environment-based pricing: Test Environment (free, 1,000 monthly limit) • Production Environment ($0.08→$0.02 per validation with volume discounts). Each GTIN in the request array counts as one validation.

Code Examples

cURL

cURL Request

curl -X POST https://api.validationcore.dev/api/v2/gtin/validate \
  -H "Authorization: Bearer adb_test_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "gtins": [
      "8806094375820",
      "0123456789012"
    ],
    "options": {
      "enablePatternDetection": true,
      "enableBusinessIntelligence": true
    }
  }'

Best Practices

• Always enable pattern detection to catch fake GTINs

• Use business intelligence to prioritize GTIN fixes by revenue impact

• Validate GTINs before using them in product feeds or advertisements

• Monitor GTIN quality trends to prevent fraudulent supplier data

Ready to Get Started?

Start validating your GTINs with our professional API

Get API Key Access the Playground

Authentication

This endpoint requires API key authentication:

Authorization: Bearer your_api_key

Request Body

          {
  "gtins": [
    "8806094375820",
    "0123456789012",
    "5901234123457"
  ],
  "options": {
    "enablePatternDetection": true,
    "enableBusinessIntelligence": true,
    "includeRevenueImpact": true,
    "detailedAnalysis": true
  }
}
        

Supported GTIN Formats

GTIN-8 8-digit format (e.g., 12345670)

GTIN-12 12-digit UPC (e.g., 123456789012)

GTIN-13 13-digit EAN (e.g., 1234567890123)

GTIN-14 14-digit ITF (e.g., 12345678901234)

Response

          {
  "success": true,
  "data": {
    "gtinCompliance": {
      "gmcCompliant": "100%",
      "validFormat": true,
      "formatMessage": "All GTINs meet Google Merchant Center format requirements",
      "validationDetails": {
        "totalProcessed": 1,
        "formatCompliant": 1,
        "formatViolations": 0,
        "checkDigitValid": 1
      },
      "complianceDetails": {
        "status": "fully_compliant",
        "coverage": "100%",
        "message": "Google Merchant Center requirements satisfied"
      }
    },
    "gtinQualityAnalysis": {
      "fraudDetectionScore": 100,
      "patternAnalysis": {
        "suspiciousPatterns": 0,
        "confidenceLevel": "high",
        "totalAnalyzed": 1
      },
      "qualityRecommendations": [
        "All GTINs pass pattern analysis",
        "No suspicious fraud patterns detected"
      ],
      "qualityMessage": "Advanced GTIN pattern analysis shows no fraud concerns"
    },
    "results": [
      {
        "gtin": "883813142507",
        "isValid": true,
        "format": "GTIN-12",
        "checkDigit": {
          "expected": "7",
          "actual": "7",
          "isValid": true
        },
        "patterns": {
          "isSuspicious": false,
          "confidence": 0.95,
          "detectedPatterns": []
        },
        "gmcCompliance": {
          "formatCompliant": true,
          "checkDigitValid": true,
          "lengthValid": true,
          "gmcMessage": "Meets GMC format requirements"
        },
        "qualityAnalysis": {
          "fraudRisk": "low",
          "patternConfidence": 0.95,
          "recommendations": [
            "GTIN passes fraud detection"
          ],
          "analysisMessage": "Passes advanced fraud detection analysis"
        }
      }
    ],
    "summary": {
      "totalProcessed": 1,
      "validCount": 1,
      "invalidCount": 0,
      "suspiciousCount": 0,
      "complianceRate": 100
    },
    "billing": {
      "validationsProcessed": 1,
      "cost": 0,
      "currency": "USD",
      "testMode": true
    },
    "testMode": true
  },
  "meta": {
    "requestId": "d4287cd1-e218-45de-82c8-f3a0bef38f1c",
    "timestamp": "2025-08-23T22:56:46.014Z",
    "apiVersion": "2.0.0",
    "endpoint": "/api/v2/validate/gtin",
    "method": "POST",
    "processingTime": 113,
    "tier": "test",
    "validationsProcessed": 1,
    "testMode": true
  },
  "message": "GTIN validation completed successfully"
}
        

✅ Understanding GTIN Validation Scoring

GTIN validation is a critical component of ValidationCore's dual scoring system, directly impacting both GMC compliance and marketplace performance scores.

Complete Scoring Methodology

Learn how GTIN validation integrates with our dual scoring system

View Full Guide ↗

⚠️ Fraud Detection Patterns

Our system detects 18 different fake GTIN patterns commonly used by fraudsters:

Sequential Patterns

Consecutive numbers that are mathematically generated

0123456789012 ❌
1234567890123 ❌

Repeating Patterns

Same digits repeated throughout the GTIN

1111111111111 ❌
9999999999999 ❌

Pricing

Starting at $0.08 per validation with volume discounts available.

1-1,000 validations/month $0.08 per validation

1,001-10,000 validations/month $0.06 per validation

10,001+ validations/month $0.04 per validation

All pricing includes fraud detection, check digit verification, and business intelligence analysis.

Error Responses

400 Bad Request - Invalid GTIN format or missing required fields

{"error": "Invalid GTIN format", "code": "INVALID_GTIN_FORMAT"}

401 Unauthorized - Invalid API key

{"error": "Invalid API key", "code": "UNAUTHORIZED"}

422 Validation Error - GTIN failed validation rules

{"error": "GTIN validation failed", "details": {...}}

429 Rate Limit Exceeded

{"error": "Rate limit exceeded", "retry_after": 60}