> ## Documentation Index
> Fetch the complete documentation index at: https://docs.payvessel.com/llms.txt
> Use this file to discover all available pages before exploring further.

# NIN Verification API (Basic)

> PayVessel basic NIN verification API to match customer identity fields against National Identification Number records.

Basic NIN verification is similar to basic BVN verification: it checks whether submitted identity fields align with the NIN record.

## Best For

* National-ID based KYC
* Match-result workflows
* Entry-level onboarding checks

## What You Submit

You provide the NIN together with first name, last name, middle name, gender, birthday, and phone number.

## What You Get Back

The endpoint returns match-result fields that help you assess whether the provided identity profile aligns with the NIN record.

## How To Use It

* Use the result for automated acceptance thresholds
* Trigger manual review on partial matches
* Ask the customer to correct inputs when mismatches are obvious

## Escalation Path

If the customer passes this step but you still need more evidence, continue to:

* [Enhanced NIN Verification](/identity-verification/enhanced-nin-verification)
* Document verification
* Face comparison