The Best Python API for Global Vehicle Registration OCR (Free Image Testing)

Extract text from worldwide vehicle registration documents using Python. Upload a document image for a free test today and get standardized VINs and dynamically localized fields for SA, AE, VN, and DE seamlessly.

Global Vehicle Registration OCR extraction process diagram
StructOCR extracts standardized universal fields and dynamically mounts localized nodes based on the detected country.

The Problem with Parsing Global Registrations in Python

Python applications often struggle to parse vehicle registration documents across different international borders. Traditional tools lack the ability to handle both standard global fields, like a 17-character VIN, and unique localized fields specific to countries like Saudi Arabia or the UAE. Furthermore, generic OCR models often destroy native scripts during extraction rather than preserving them.

The StructOCR Solution

Our API allows your Python backend to automate data extraction from global vehicle registration documents effortlessly. It features a robust Standardized + Localized structure that unifies essential information like VIN, Make, and Model across all regions, while preserving native scripts in `_raw` fields. By sending a simple Base64 string via Python's standard `requests` library, you receive validated JSON with dynamically mounted region-specific data nodes and strictly enforced ISO 3779 VIN validation.

Common Use Cases

  • Global Fleet Management: Extract standardized VIN, make, and model to onboard fleet vehicles instantly across different countries.
  • Border Control & Logistics: Process region-specific documents like Saudi Istimara or UAE Mulkiya at borders with specialized localized schemas.
  • Insurance Verification: Safely validate 17-character VINs automatically by relying on enforced ISO 3779 rules that correct common OCR mistakes.

Live Demo: Passport scanner

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Implementation: Request with Python

Complete, runnable Python code to extract vehicle registration data using the standard `requests` library.

Prerequisite: Python 3.7+ and the requests library (pip install requests)

PYTHON EXAMPLE
import requests
import base64

with open("document.jpg", "rb") as image_file:
    base64_image = base64.b64encode(image_file.read()).decode('utf-8')

url = "https://api.structocr.com/v1/vehicle-registration"
headers = {
    "x-api-key": "YOUR_API_KEY",
    "Content-Type": "application/json"
}
payload = {
    "img": base64_image
}

response = requests.post(url, headers=headers, json=payload)
print(response.json())

Technical Specs

  • Endpoint: POST https://api.structocr.com/v1/vehicle-registration
  • Input format: Base64 encoded string passed in the JSON body.
  • File Constraints: Max 4.5MB (decoded). Compress to under 500 KB for best response time.
  • Supported Formats: JPG, PNG, WebP.
  • Output: JSON categorized into document, standardized, and localized nodes.

Key Features

  • Standardized + Localized Schema: Unifies universal specs while dynamically mounting localized fields for countries like SA, AE, VN, and DE.
  • Raw vs Normalized: Retains native language text in `_raw` fields and provides English standard terms in `_normalized` fields.
  • VIN Validation: Strictly enforces ISO 3779 rules for 17-character VIN extraction, safely correcting common OCR mistakes like 'O' to '0'.

Sample JSON Response

The API returns categorized data. This example shows a Saudi Arabia registration with standardized vehicle specs and localized TGA plate details.

{
  "success": true,
  "data": {
    "document": {
      "country_code": "SA",
      "document_type": "VEHICLE_REGISTRATION",
      "confidence_score": 0.99
    },
    "standardized": {
      "vin": null,
      "plate": {
        "number": "8241",
        "letters_normalized": "A T X",
        "formatted": "8241 ATX"
      },
      "make_raw": "تويوتا",
      "make_normalized": "Toyota",
      "model_raw": "سيدان",
      "model_normalized": "Sedan",
      "year": 2022,
      "color_raw": "احمر",
      "color_normalized": "Red"
    },
    "localized": {
      "saudi": {
        "tga_plate_details": {
          "sequence_number": "987654321",
          "letter_right": "أ",
          "letter_middle": "ط",
          "letter_left": "س",
          "number": "8241",
          "plate_type_raw": "نقل خاص",
          "plate_type_normalized": "Private Transport"
        }
      }
    }
  }
}

Frequently Asked Questions

How should I encode the image?

Images must be sent as Base64 strings in the JSON body. The string must not contain any internal whitespaces or newlines.

What is the maximum file size?

The maximum decoded payload restriction is 4.5MB. Exceeding this will trigger a 413 Payload Too Large error.

What happens if a country isn't explicitly supported?

For countries without specific strict schemas, the engine automatically extracts key-value pairs into a generic `unmapped_fields` dictionary.

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