Bank Cheque Book OCR API

The Bank Cheque Book OCR API allows users to extract cheque details automatically from uploaded cheque images or documents using OCR technology. It retrieves structured information such as account holder name, cheque number, account number, IFSC code, bank name, branch details, and other available cheque information quickly and accurately in JSON format.

API Details

Request URL

POST

https://g99.in/api/ocr/chequeocr

Request Body Parameters

Type	Name	Optional	Description
File	file	Required	Upload the Bank Cheque Book image.

Request Header Parameters

Type	Name	Value / Description	Optional
String	Content-Type	multipart/form-data	Required

Sample Code

request.php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://g99.in/api/ocr/chequeocr',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => array('file'=> new CURLFILE(' --Uploaded File Path-- ')),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

request.py

import requests

url = "https://g99.in/api/ocr/chequeocr"

payload = {}
files=[
  ('file',('Screenshot 2026-03-27 171219.png',open(' --Uploaded File Path-- ','rb'),'image/png'))
]
headers = {}

response = requests.request("POST", url, headers=headers, data=payload, files=files)

print(response.text)

request.cs

var client = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Post, "https://g99.in/api/ocr/chequeocr");
var content = new MultipartFormDataContent();
content.Add(new StreamContent(File.OpenRead(" --Uploaded File Path-- ")), "file", " --Uploaded File Path-- ");
request.Content = content;
var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
Console.WriteLine(await response.Content.ReadAsStringAsync());

Response

HTTP status code 200

Key	Type	Description
signatory	String	Name of the authorized cheque signatory or account holder.
accountNumber	String	Bank account number linked to the cheque.
bank	String	Name of the bank issuing the cheque.
branch	String	Name of the bank branch.
code	String	Bank or branch code available in the cheque.
ifsc	String	IFSC code of the bank branch.
issued	Date	Date on which the cheque was issued.
issuedTo	String	Name of the person or entity to whom the cheque is issued.

Sample Response

Sample response for valid document

response.json

{
  "valid": true,
  "message": null,
  "data": {
    "signatory": "Guru",
    "accountNumber": "12341234123412",
    "bank": "IOB Bank",
    "branch": "BANGALORE - KORAMANGALA",
    "code": "IDB",
    "ifsc": "IDB0000047",
    "issued": null,
    "issuedTo": null
  }
}

Error Response

Parameter	Type	Description
status	Number	Unique error codes for different errors. Always available.
message	String	Error message describing the error. Always Available.
error	Boolean	True / False for different errors. Always available.

Error Codes

HTTP Status	Error Code	Error Message
400	4001	Malformed data or missing required parameter values.
400	4002	File size exceeds 10MB limit.
400	4003	Only JPEG and PNG images are supported.
400	4004	Invalid or corrupted image.
400	4005	Minimum image size should be 200 X 200 pixels.
500	5001	Document processing service is currently unavailable. Please try again later.

Sample Error Response

response.json

{
  "message": "Invalid or corrupted image.",
  "status": 4004,
  "error": True
}

Constraints

Only JPEG, PNG images are supported.
Minimum image size is 200x200 png for better identification and parsing.
Maximum allowed image size is 10 MB.