# I4C Cyber Fraud Check for Risk Screening API | FastKYC

> Check whether a mobile number is flagged as suspicious in the I4C cybercrime database, screening applicants for known fraud before you onboard them.

Source: https://www.fastkyc.com/apis/i4c-check/

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[Identity APIs](/apis/identity/)

# I4C Check API

Check whether a mobile number is flagged as suspicious in the I4C cybercrime database, screening applicants for known fraud before you onboard them.

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Category

[Identity APIs](/apis/identity/)

Built for

-   [Crypto & Web3](/industries/crypto/)

## What the I4C Check API does

I4C Check tests a mobile number against the Indian Cybercrime Coordination Centre database and reports whether it has been flagged in connection with cybercrime.

This is one of the few checks that draws on actual reported crime rather than inference. A flagged number has featured in cybercrime complaints, which is a materially stronger signal than any behavioural heuristic.

## Where teams use the I4C Check API

1.  Screening numbers against reported cybercrime
    
2.  Blocking known fraud numbers at onboarding
    
3.  Adding a crime-reported signal to a risk engine
    
4.  Investigating suspicious activity on an account
    

## Frequently Asked Questions (FAQs)

What does a flag mean?

The number appears in cybercrime complaints recorded by I4C. It is a strong signal warranting rejection or escalation.

Should a flag block automatically?

Most institutions treat it as blocking pending review. Decide deliberately and document the policy.

Does a clean result mean safe?

No. It means the number has not been reported. Absence of a complaint is not evidence of good faith.

## Related APIs

-   [Blank Paper Validation API Detect whether an uploaded image is blank paper rather than a real document, catching failed captures before processing.](/apis/blank-paper-validation/)
-   [Contact Details by GST API Fetch the mobile number and email address registered against a GST number, giving you verified contact details for a business you are onboarding.](/apis/gst-to-contact-details/)
-   [MNV Without OTP API Verify an Indian mobile number and get subscriber and network details without sending an OTP, so customers are never interrupted during onboarding.](/apis/mnv-without-otp/)
-   [MNV Without OTP Basic API Get essential subscriber and network details for a mobile number without an OTP, in a lightweight verification call built for high-volume checks.](/apis/mnv-without-otp-basic/)

## Start verifying with the I4C Check 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