# ICSI CP Number Verification API: Practising CS | FastKYC

> Verify an ICSI member by Certificate of Practice number and fetch their professional and contact details, before accepting work they certify.

Source: https://www.fastkyc.com/apis/icsi-by-cp-number/

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[Identity APIs](/apis/identity/)

# Verify ICSI by CP Number API

Verify an ICSI member by Certificate of Practice number and fetch their professional and contact details, before accepting work they certify.

[Book a Demo](/book-demo/)

Category

[Identity APIs](/apis/identity/)

## What the Verify ICSI by CP Number API does

Verify ICSI by CP Number checks a member of the Institute of Company Secretaries of India using their Certificate of Practice (CP) number, and fetches the member's professional and contact details.

A CP number is held by company secretaries in practice, the ones who sign off on filings for other businesses. Verifying it confirms the certificate behind a signature.

## Where teams use the Verify ICSI by CP Number API

1.  Checking a practising company secretary before accepting a certification
    
2.  Verifying professionals in compliance and audit workflows
    
3.  Onboarding practising company secretaries to a marketplace
    

## Frequently Asked Questions (FAQs)

What do I need to send?

The member's Certificate of Practice (CP) number.

Can I verify with a membership ID instead?

Yes. Use Verify ICSI by Member ID.

## Start verifying with the Verify ICSI by CP Number API

Book a walkthrough and we will show the call, the response and how it fits your onboarding flow.

[Book a Demo](/book-demo/) [Browse All APIs](/apis/)

-   One API key for every check
-   Verified against official Indian records
-   Built for onboarding at scale