Avant One Verification API

Order, track and retrieve verification reports over one REST API instead of a dashboard. All three ways we deliver a check — instant, managed and field visit — are reachable the same way: submit a request, get a webhook when it completes, pull the report. Your integration does not need to know which delivery mode ran; ours does.

• ✓Instant checks — eligible NIN, BVN, credit and identity results returned in minutes
• ✓Managed checks — employment, education and reference checks our analysts verify, with status updates delivered to your webhook as evidence comes in
• ✓Field checks — physical address and in-person verification, tracked through the same request/webhook contract from dispatch to completion

Do not make an asynchronous field or source-dependent check look like a synchronous lookup. Product teams can use immediate digital results where eligible, persist the verification request, listen for status events and let the customer continue according to the organisation's own risk and approval rules.

This keeps verification transparent without creating unnecessary dead ends or indefinite loading states. For a deeper architecture walkthrough, read KYC & Verification API in Nigeria.

Every new developer starts in a sandbox routed through our Staging environment — the same request shapes, the same responses, the same webhooks, with zero risk to production data or billing. Switch to production only when you are ready to go live.

1. Register for API access — your organisation is set up automatically 2. Land in the developer module with your sandbox base URL and getting-started guide 3. Generate an API key and make your first sandbox call 4. Move to production when your integration is ready

• ✓Full API reference with request/response examples for every check type
• ✓Webhook events for request status changes and report completion
• ✓Organisation-scoped API keys you generate and rotate yourself
• ✓The same evidence-backed reports and Avant-Score you'd see in the dashboard, returned as structured JSON

Use the API when verification belongs inside your product or onboarding flow. Use the Background Checks portal experience for one-off requests, operational users and batch work. Both are delivery channels for the same verification capability, so customers can choose the interaction model that fits rather than being forced into an integration project.

Fintechs and lenders verifying at signup, marketplaces onboarding gig workers or vendors, and any product team that needs a check result inline rather than a person checking a dashboard.

Related buyer guides:

• ✓Address Verification in Nigeria
• ✓Employment & Guarantor Verification
• ✓KYC & Verification API Integration Guide