💳 Thai Credit Card Statement OCR 🆕

💳 ใบแจ้งยอดบัตรเครดิตไทย

Welcome to the Thai Credit Card Statement OCR API, an AI-powered solution developed by iApp Technology Co., Ltd. for extracting data from Thai credit card statements. This documentation will help you integrate and use our OCR service effectively.

Try Demo!

Example Images (Click to try)

API Key

Demo key is limited to 10 requests per day per IP
Click here to get your API key

Endpoint URL

cURL Command

Upload Credit Card Statement

Getting Started

Prerequisites
- An API key from iApp Technology
- Thai credit card statement images
- Supported file formats: JPEG, JPG, PNG, HEIC, HEIF, PDF
- Maximum file size: 10MB
Quick Start
- Fast processing (5-10 seconds per document)
- High accuracy text extraction
- Support for multiple file formats
Key Features
- Detailed field extraction including:
  - Statement details (type, dates, card number)
  - Card holder information (name)
  - Bank information (name, address, tax ID, contact)
  - Transaction details (date, description, amount)
  - Financial summary (balances, payments, charges)
  - Reward points information
- Support for both single-page and multi-page documents (PDF)
- Option to return original OCR text and processed images
- Flexible JSON response format with detailed field extraction
Security & Compliance
- GDPR and PDPA compliant
- Secure API endpoints
- No data retention after processing

Example

Here's a sample credit card statement and its extracted data:

Request:

cURL

curl -X POST "https://api.iapp.co.th/ocr/v3/creditcard-statement/file" \
-H "apikey: YOUR_API_KEY" \
-F "file=@/path/to/creditcard-statement.jpg" \
-F "return_image=false" \
-F "return_ocr=false"

How to get API Key?

Please visit iApp AI Portal to view your existing API key or request a new one.

Response:

{
    "message": "success",
    "processed": {
        "statementType": "ใบแจ้งยอดบัญชีบัตรเครดิต",
        "statementDate": "31/12/2566",
        "dueDate": "25/01/2567",
        "cardNumber": "4711-XXXX-XXXX-1234",
        "cardHolderName": "นาย ทดสอบ ระบบ",
        "bankName": "ธนาคารกสิกรไทย จำกัด (มหาชน)",
        "bankAddress": "1 ซอยราษฎร์บูรณะ 27/1 ถนนราษฎร์บูรณะ แขวงราษฎร์บูรณะ เขตราษฎร์บูรณะ กรุงเทพฯ 10140",
        "bankTaxID": "0107536000315",
        "bankPhone": "02-888-8888",
        "bankFax": "02-888-8888",
        "creditLimit": 100000.0,
        "closingDate": "31/12/2566",
        "newBalancePayment": 15789.4,
        "minimumPaymentDue": 789.47,
        "interestRate": 16.0,
        "paymentByDebitAccountNo": "XXX-X-XX789-X",
        "transactions": [
            {
                "transactionDate": "20/12",
                "postingDate": "21/12",
                "description": "CHOKCHAI STEAK HOUSE PATHUMTHANI THA",
                "foreignAmount": null,
                "foreignCurrencyCode": null,
                "amountTHB": 1089.0
            }
        ],
        "payments_adjustment_others": [
            {
                "transactionDate": "31/12",
                "postingDate": "31/12",
                "description": "PAYMENT RECEIVED, THK YOU",
                "foreignAmount": null,
                "foreignCurrencyCode": null,
                "amountTHB": -369.0
            }
        ],
        "previousBalance": 14789.4,
        "thisPeriodBalance": 15789.4,
        "totalPayments": 678.0,
        "totalInterestCharges": 0.0,
        "reward": {
            "rewardAccumulatedPoints": 1234,
            "rewardPointsEarned": 56,
            "bonusPointsEarned": 0,
            "pointsAdjustedThisMonth": 0,
            "pointsRedeemed": 0,
            "pointsOutstanding": 1290
        },
        "paymentBarcodeNo": "1234567890123456789"
    },
    "process_ms": 6821
}

Features & Capabilities

Core Features

Document Processing
- High accuracy text extraction and field recognition
- Thai language support
- Fast processing time of 5-10 seconds per document
- Multi-format support (JPEG, JPG, PNG, HEIC, HEIF, PDF)
- Multi-page document handling
- Option to return original OCR text and processed images
- GDPR and PDPA compliant processing
Data Extraction
- Flexible JSON response format with detailed field extraction

Supported Fields

Field	Type	Description
statementType	String	Type of credit card statement
statementDate	String	Date of statement
dueDate	String	Due date for payment
cardNumber	String	Credit card number
cardHolderName	String	Name of card holder
bankName	String	Name of issuing bank
bankAddress	String	Address of issuing bank
bankTaxID	String	Tax ID of issuing bank
bankPhone	String	Phone number of bank
bankFax	String	Fax number of bank
creditLimit	Number	Credit limit amount
closingDate	String	Statement closing date
newBalancePayment	Number	New balance payment amount
minimumPaymentDue	Number	Minimum payment due amount
interestRate	Number	Interest rate percentage
paymentByDebitAccountNo	String	Linked debit account number
transactions	Array	Array of transaction details
payments_adjustment_others	Array	Array of payment and adjustment details
previousBalance	Number	Previous statement balance
thisPeriodBalance	Number	Current period balance
totalPayments	Number	Total payments made
totalInterestCharges	Number	Total interest charges
reward	Object	Reward points information
paymentBarcodeNo	String	Payment barcode number

Note: All currency values are rounded to two decimal places.

API Reference

Recognizing Credit Card Statement

There are two endpoints available for processing credit card statements:

1. File Upload

POST https://api.iapp.co.th/ocr/v3/creditcard-statement/file

Request Headers

Name	Type	Required	Description
apikey	string	Yes	Your API key

Request Body (multipart/form-data)

Parameter	Type	Required	Description
file	file	Yes	Statement image (JPEG, PNG) or PDF document
return_image	boolean	No	Include base64 encoded image in response (default: false)
return_ocr	boolean	No	Include raw OCR text in response (default: false)

Error Handling

Status	Code	Description
400	BAD_REQUEST	Invalid parameters or file format
401	UNAUTHORIZED	Invalid or missing API key
404	NOT_FOUND	Invalid endpoint
500	INTERNAL_SERVER_ERROR	Processing failed

2. Base64 Image

POST https://api.iapp.co.th/ocr/v3/creditcard-statement/base64

Request Headers

Name	Type	Required	Description
apikey	string	Yes	Your API key

Request Body

You can send the base64 data either as JSON or form data:

JSON Format:

{
    "base64_string": "string", // Base64 encoded image data
    "return_image": false, // Optional
    "return_ocr": false // Optional
}

Form Data Format:

Parameter	Type	Required	Description
base64_string	string	Yes	Base64 encoded image data
return_image	boolean	No	Include base64 encoded image in response (default: false)
return_ocr	boolean	No	Include raw OCR text in response (default: false)

Response Format

Same as file upload endpoint

Code Examples

Python (File Upload)

import requests
apiKey = 'YOUR_API_KEY'
filePath = '/path/to/creditcard-statement.jpg'
url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/file"

headers = {'apikey': apiKey}
files = {'file': ('creditcard-statement.jpg', open(filePath, 'rb'), 'image/jpeg')}
data = {'return_image': 'false', 'return_ocr': 'false'}

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

Python (Base64)

import requests
import base64

apiKey = 'YOUR_API_KEY'
filePath = '/path/to/creditcard-statement.jpg'
url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/base64"

# Read image file and convert to base64
with open(filePath, 'rb') as image_file:
    base64_string = base64.b64encode(image_file.read()).decode()

headers = {
    'apikey': apiKey,
    'Content-Type': 'application/json'
}

data = {
    'base64_string': base64_string,
    'return_image': False,
    'return_ocr': False
}

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

Javascript (File Upload)

const axios = require("axios")
const FormData = require("form-data")
const fs = require("fs")

const apiKey = "YOUR_API_KEY"
const filePath = "/path/to/creditcard-statement.jpg"
const url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/file"

const form = new FormData()
form.append("file", fs.createReadStream(filePath))
form.append("return_image", "false")
form.append("return_ocr", "false")

try {
    const response = await axios.post(url, form, {
        headers: {
            ...form.getHeaders(),
            apikey: apiKey,
        },
    })
    return response.data
} catch (error) {
    throw error
}

Javascript (Base64)

const axios = require("axios")
const fs = require("fs")

const apiKey = "YOUR_API_KEY"
const filePath = "/path/to/creditcard-statement.jpg"
const url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/base64"

// Read image file and convert to base64
const base64String = fs.readFileSync(filePath, { encoding: "base64" })

const data = {
    base64_string: base64String,
    return_image: false,
    return_ocr: false,
}

try {
    const response = await axios.post(url, data, {
        headers: {
            "Content-Type": "application/json",
            apikey: apiKey,
        },
    })
    return response.data
} catch (error) {
    throw error
}

PHP (File Upload)

$url = 'https://api.iapp.co.th/ocr/v3/creditcard-statement/file';
$apiKey = 'YOUR_API_KEY';
$filePath = '/path/to/creditcard-statement.jpg';

$headers = array(
    'apikey: ' . $apiKey
);

$postFields = array(
    'file' => new CURLFile($filePath),
    'return_image' => 'false',
    'return_ocr' => 'false'
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($ch);
curl_close($ch);

echo $response;

PHP (Base64)

$url = 'https://api.iapp.co.th/ocr/v3/creditcard-statement/base64';
$apiKey = 'YOUR_API_KEY';
$filePath = '/path/to/creditcard-statement.jpg';

// Read image file and convert to base64
$base64String = base64_encode(file_get_contents($filePath));

$data = array(
    'base64_string' => $base64String,
    'return_image' => false,
    'return_ocr' => false
);

$headers = array(
    'Content-Type: application/json',
    'apikey: ' . $apiKey
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($ch);
curl_close($ch);

echo $response;

Swift (File Upload)

import Foundation

let url = URL(string: "https://api.iapp.co.th/ocr/v3/creditcard-statement/file")!
let filePath = "/path/to/creditcard-statement.jpg"
let apiKey = "YOUR_API_KEY"

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue(apiKey, forHTTPHeaderField: "apikey")

let boundary = UUID().uuidString
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")

var body = Data()
body.append("--\(boundary)\r\n".data(using: .utf8)!)
body.append("Content-Disposition: form-data; name=\"file\"; filename=\"creditcard-statement.jpg\"\r\n".data(using: .utf8)!)
body.append("Content-Type: image/jpeg\r\n\r\n".data(using: .utf8)!)
body.append(try! Data(contentsOf: URL(fileURLWithPath: filePath)))
body.append("\r\n--\(boundary)\r\n".data(using: .utf8)!)
body.append("Content-Disposition: form-data; name=\"return_image\"\r\n\r\nfalse\r\n".data(using: .utf8)!)
body.append("--\(boundary)\r\n".data(using: .utf8)!)
body.append("Content-Disposition: form-data; name=\"return_ocr\"\r\n\r\nfalse\r\n".data(using: .utf8)!)
body.append("--\(boundary)--\r\n".data(using: .utf8)!)

request.httpBody = body

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard let data = data, error == nil else {
        print("Error: \(error?.localizedDescription ?? "Unknown error")")
        return
    }
    print(String(data: data, encoding: .utf8)!)
}

task.resume()

Swift (Base64)

import Foundation

let url = URL(string: "https://api.iapp.co.th/ocr/v3/creditcard-statement/base64")!
let filePath = "/path/to/creditcard-statement.jpg"
let apiKey = "YOUR_API_KEY"

// Read image file and convert to base64
guard let imageData = try? Data(contentsOf: URL(fileURLWithPath: filePath)) else {
    print("Error reading file")
    return
}
let base64String = imageData.base64EncodedString()

let parameters: [String: Any] = [
    "base64_string": base64String,
    "return_image": false,
    "return_ocr": false
]

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue(apiKey, forHTTPHeaderField: "apikey")
request.httpBody = try? JSONSerialization.data(withJSONObject: parameters)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard let data = data, error == nil else {
        print("Error: \(error?.localizedDescription ?? "Unknown error")")
        return
    }
    print(String(data: data, encoding: .utf8)!)
}

task.resume()

Kotlin (File Upload)

import okhttp3.*
import java.io.File

val client = OkHttpClient()
val apiKey = "YOUR_API_KEY"
val filePath = "/path/to/creditcard-statement.jpg"
val url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/file"

val file = File(filePath)
val requestBody = MultipartBody.Builder()
    .setType(MultipartBody.FORM)
    .addFormDataPart("file", file.name, RequestBody.create(MediaType.parse("image/jpeg"), file))
    .addFormDataPart("return_image", "false")
    .addFormDataPart("return_ocr", "false")
    .build()

val request = Request.Builder()
    .url(url)
    .post(requestBody)
    .addHeader("apikey", apiKey)
    .build()

client.newCall(request).enqueue(object : Callback {
    override fun onFailure(call: Call, e: IOException) {
        e.printStackTrace()
    }

    override fun onResponse(call: Call, response: Response) {
        response.use {
            if (!response.isSuccessful) throw IOException("Unexpected code $response")
            println(response.body()?.string())
        }
    }
})

Kotlin (Base64)

import okhttp3.*
import java.io.File
import android.util.Base64
import org.json.JSONObject

fun processBase64Image() {
    val client = OkHttpClient()
    val apiKey = "YOUR_API_KEY"
    val filePath = "/path/to/creditcard-statement.jpg"
    val url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/base64"

    // Read file and convert to base64
    val file = File(filePath)
    val bytes = file.readBytes()
    val base64String = Base64.encodeToString(bytes, Base64.DEFAULT)

    val json = JSONObject()
    json.put("base64_string", base64String)
    json.put("return_image", false)
    json.put("return_ocr", false)

    val requestBody = RequestBody.create(
        MediaType.parse("application/json"),
        json.toString()
    )

    val request = Request.Builder()
        .url(url)
        .post(requestBody)
        .addHeader("Content-Type", "application/json")
        .addHeader("apikey", apiKey)
        .build()

    client.newCall(request).enqueue(object : Callback {
        override fun onFailure(call: Call, e: IOException) {
            e.printStackTrace()
        }

        override fun onResponse(call: Call, response: Response) {
            response.use {
                if (!response.isSuccessful) throw IOException("Unexpected code $response")
                println(response.body()?.string())
            }
        }
    })
}

Java (File Upload)

import okhttp3.*;
import java.io.File;
import java.io.IOException;

public class Main {
    public static void main(String[] args) {
        OkHttpClient client = new OkHttpClient();

        String apiKey = "YOUR_API_KEY";
        String url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/file";
        String filePath = "/path/to/creditcard-statement.jpg";

        File file = new File(filePath);
        RequestBody requestBody = new MultipartBody.Builder()
            .setType(MultipartBody.FORM)
            .addFormDataPart("file", file.getName(), RequestBody.create(MediaType.parse("image/jpeg"), file))
            .addFormDataPart("return_image", "false")
            .addFormDataPart("return_ocr", "false")
            .build();

        Request request = new Request.Builder()
            .url(url)
            .post(requestBody)
            .addHeader("apikey", apiKey)
            .build();

        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                e.printStackTrace();
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
                System.out.println(response.body().string());
            }
        });
    }
}

Java (Base64)

import okhttp3.*;
import java.io.File;
import java.io.IOException;
import java.util.Base64;
import java.nio.file.Files;
import org.json.JSONObject;

public class Main {
    public static void main(String[] args) {
        OkHttpClient client = new OkHttpClient();

        String apiKey = "YOUR_API_KEY";
        String url = "https://api.iapp.co.th/ocr/v3/creditcard-statement/base64";
        String filePath = "/path/to/creditcard-statement.jpg";

        try {
            // Read file and convert to base64
            byte[] fileContent = Files.readAllBytes(new File(filePath).toPath());
            String base64String = Base64.getEncoder().encodeToString(fileContent);

            JSONObject json = new JSONObject();
            json.put("base64_string", base64String);
            json.put("return_image", false);
            json.put("return_ocr", false);

            RequestBody requestBody = RequestBody.create(
                MediaType.parse("application/json"),
                json.toString()
            );

            Request request = new Request.Builder()
                .url(url)
                .post(requestBody)
                .addHeader("Content-Type", "application/json")
                .addHeader("apikey", apiKey)
                .build();

            client.newCall(request).enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {
                    e.printStackTrace();
                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
                    System.out.println(response.body().string());
                }
            });
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Dart (File Upload)

import 'dart:convert';
import 'dart:io';
import 'package:http/http.dart' as http;

String url = 'https://api.iapp.co.th/ocr/v3/creditcard-statement/file';
String filePath = '/path/to/creditcard-statement.jpg';
String apiKey = 'YOUR_API_KEY';

void main() async {
    var url = Uri.parse(url);
    var request = http.MultipartRequest('POST', url)
        ..headers['apikey'] = apiKey
        ..files.add(await http.MultipartFile.fromPath('file', filePath))
        ..fields['return_image'] = 'false'
        ..fields['return_ocr'] = 'false';

    var response = await request.send();

    if (response.statusCode == 200) {
        var responseData = await response.stream.bytesToString();
        print(responseData);
    } else {
        print('Error: ${response.statusCode}');
    }
}

Dart (Base64)

import 'dart:convert';
import 'dart:io';
import 'package:http/http.dart' as http;

String url = 'https://api.iapp.co.th/ocr/v3/creditcard-statement/base64';
String filePath = '/path/to/creditcard-statement.jpg';
String apiKey = 'YOUR_API_KEY';

void main() async {
    var url = Uri.parse(url);
    var request = http.MultipartRequest('POST', url)
        ..headers['apikey'] = apiKey
        ..files.add(await http.MultipartFile.fromPath('file', filePath))
        ..fields['return_image'] = 'false'
        ..fields['return_ocr'] = 'false';

    var response = await request.send();

    if (response.statusCode == 200) {
        var responseData = await response.stream.bytesToString();
        print(responseData);
    } else {
        print('Error: ${response.statusCode}');
    }
}

Limitations & Best Practices

Limitations

Maximum file size: 10MB
Supported languages: Thai
PDF files: Up to 10 pages
Rate limit: 10 requests per second per API key

Best Practices

Ensure good image quality for optimal results
Use JPEG or PNG format for images
Implement error handling for failed requests
Cache responses when processing the same document multiple times
Set appropriate timeouts for large files

Accuracy & Performance

Overall Accuracy

Based on our benchmark dataset of Thai credit card statements (over 1,000 Thai credit card statements documents):

Field Type	Accuracy (%)	Notes
Card Numbers	99.5%	Masked for security
Amounts	99.8%	Currency values and totals
Dates	99.0%	Various Thai date formats
Transactions	98.5%	Description and amounts
Overall	99.2%	Weighted average

Processing Speed

Average processing time: 20-30 seconds
95th percentile: 45 seconds
Maximum processing time: 60 seconds

Factors Affecting Accuracy

Image Quality
- Resolution (minimum 300 DPI recommended)
- Lighting conditions
- Image focus and clarity
Document Condition
- Physical damage
- Fading or wear
- Handwritten modifications
Statement Format
- Standard formats: 99%+ accuracy
- Non-standard layouts: 95%+ accuracy
- Handwritten elements: 90%+ accuracy

History

Our model is continuously trained on new data to improve accuracy:

Version	Release Date	Accuracy	Key Improvements
3.0	2024-12-27	99.2%	Base version

Pricing

AI API Service Name	Pricing	On-Premise
Thai Credit Card Statement OCR	1 IC/Page	Contact

Try Demo!​

Example Images (Click to try)

Getting Started​

Example​

Request:​

Response:​

Features & Capabilities​

Core Features​

Supported Fields​

API Reference​

Recognizing Credit Card Statement​

1. File Upload​

Request Headers​

Request Body (multipart/form-data)​

Error Handling​

2. Base64 Image​

Request Headers​

Request Body​

Response Format​

Code Examples​

Python (File Upload)​

Python (Base64)​

Javascript (File Upload)​

Javascript (Base64)​

PHP (File Upload)​

PHP (Base64)​

Swift (File Upload)​

Swift (Base64)​

Kotlin (File Upload)​

Kotlin (Base64)​

Java (File Upload)​

Java (Base64)​

Dart (File Upload)​

Dart (Base64)​

Limitations & Best Practices​

Limitations​

Best Practices​

Accuracy & Performance​

Overall Accuracy​

Processing Speed​

Factors Affecting Accuracy​

History​

Pricing​

Try Demo!

Getting Started

Example

Request:

Response:

Features & Capabilities

Core Features

Supported Fields

API Reference

Recognizing Credit Card Statement

1. File Upload

Request Headers

Request Body (multipart/form-data)

Error Handling

2. Base64 Image

Request Headers

Request Body

Response Format

Code Examples

Python (File Upload)

Python (Base64)

Javascript (File Upload)

Javascript (Base64)

PHP (File Upload)

PHP (Base64)

Swift (File Upload)

Swift (Base64)

Kotlin (File Upload)

Kotlin (Base64)

Java (File Upload)

Java (Base64)

Dart (File Upload)

Dart (Base64)

Limitations & Best Practices

Limitations

Best Practices

Accuracy & Performance

Overall Accuracy

Processing Speed

Factors Affecting Accuracy

History

Pricing