KYB document classification API

Introduction

This API enables users to categorize various KYB documents, including Business PAN(Income Tax Department), Certificate of Incorporation, FSSAI (Food Safety and Standards Authority of India) certificates, GST Registration Certificates, Import Export Certificates, Memorandum of Association (MOA) and Articles of Association (AOA), Shop and Establishment Registration, UDYAM and Udyog Aadhar.

API details

Endpoint

POST https://api.signzy.app/api/v3/id-classification/business

POST https://api-preproduction.signzy.app/api/v3/id-classification/business

Request headers

Name	Value	Required	Description
Content-Type	application/json	Mandatory	The type of content that the request body contains.
Authorization	XXXXXXXXXXXXXXX	Mandatory	An authentication token to authorize the request. Reach out to the Signzy support team to get one created.

Request body parameters

Parameter	Data type	Description	Required
file	String	A URL of the image.	Mandatory

{  
    "file":"https://persist.signzy.tech/api/files/944450379/download/33178be150604f62b0df874d8d682cf984ddb737a46e4c709050a1931450924c.png"
}

Code samples

curl --location 'https://api-preproduction.signzy.app/api/v3/id-classification/business' \
--header 'Content-Type: application/json' \
--header 'Authorization: <AUTH_KEY>' \
--data '{"file":["https://persist.signzy.tech/api/files/949794811/download/1684a7f93d1740619115083f3bd09b3b78538dfb9f804240a757c91835987032.png"]}'

Response body parameters

Parameter	Data Type	Description
docType	String	Type of Business Document (Business PAN(Income Tax Department), Certificate of Incorporation, FSSAI (Food Safety and Standards Authority of India), GST Registration Certificates, Import Export Certificates, Memorandum of Association (MOA) and Articles of Association (AOA), Shop and Establishment Registration, UDYAM and Udyog Aadhar)

Error Code

Code	Status	Description
200	Success	Type of Business Document
400	Bad Request	Invalid request format or missing required parameters.
422	Invalid Input	Invalid Input
500	Internal Server Error	Something is broken. This is usually a temporary error, for example in a high-load situation.or if an endpoint is temporarily having issues. Try again later.

{
    "docType": "Import Export Certificate"
}

Success Rate

Business Document	Success Rate
Business Pan(Income Tax Department)	100%
Certificate of Incorporation	100%
FSSAI	100%
GST Registration Certificate	100%
Import Export Certificate	100%
Memorandum of Association (MOA) and Articles of Association (AOA)	99.5%
Shop and Establishment Registration	100%
UDYAM and Udyog Aadhar	100%

Notes

Rejection outputs (3):

invalid_handwritten — entire document is handwritten on blank paper, no official structure

invalid_self_declared — company's own letter/declaration listing registration details, not government-issued

invalid_unclassified — doesn't match any category or lacks authenticity markers

Valid classification outputs (12):

Business Pan (Income tax department)

Trade License

Municipal corporation

Contract Labour Regular and Abolition

Certificate of Incorporation

FSSAI (Food Safety and Standards Authority of India)

GST Registration Certificate

Import Export Certificate

Memorandum of Association (MOA) and Articles of Association (AOA)

Shop and Establishment Registration

UDYAM and Udyog Aadhar

Multi-label examples (comma-separated):

Trade License, Municipal corporation

Trade License, Shop and Establishment Registration

Contact Us for Any Assistance

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