# Introduction

**Ahrefs Connect** is our integration program that lets third-party products access Ahrefs API data on behalf of Ahrefs users. Users connect their Ahrefs account via OAuth, and your app can fetch data using their API units.

> **INFO**
> ### Note about the legacy Integrations program
> Ahrefs Connect is our new integration system, built on Ahrefs API v3. The legacy API v2 and old Integrations program were deprecated on **November 1, 2025,** and apps that haven’t migrated no longer have access to Ahrefs data.
>
> Developers who still need migration details can find them here: [For legacy app developers](./legacy-developers.md)
>
> Questions? Contact support@ahrefs.com.

## Why integrate

If you build a marketing, content, or SEO product and want to add more value for your users, integrate with Ahrefs Connect.

Through the Ahrefs API, you can enrich your product with:
- Organic search and backlinks data
- Competitive intelligence
- Rank Tracker results
- Site Audit reports for user websites
- And much more

## Getting started

1. Learn [how Ahrefs Connect works](./how-it-works.md)
2. [Apply to join](./how-to-apply.md)
3. Get credentials and [implement OAuth](./oauth-guide.md)
4. [Make API calls](./api-guide.md) with the user’s token
5. [Submit for review](./approval-process.md) and go live
6. List your app in the [Apps Gallery](./apps-gallery.md)

Before you start, please review the [Ahrefs Connect Terms of Service](./terms-of-service.md)

## For Ahrefs users

Once a technology provider joins the Ahrefs Connect Program, their integration becomes available to users on **Ahrefs paid plans** (Lite, Standard, Advanced, and Enterprise). Learn more about the program requirements for technology providers [here](./how-it-works.md).
- Connect your account to third-party apps via OAuth to get Ahrefs data directly in those tools.
- When an app makes an API call on your behalf, it uses **API units** from your subscription.
- Workspace admins can set usage limits for each app.

Learn more: [How to manage your integrations](./how-to-manage.md)