---
updatedAt: 2026-04-07T10:11:10.000Z
agentTools:
  siteIndex: https://developers.liveramp.com/llms.txt
  projectIndex: https://developers.liveramp.com/authenticatedtraffic-api/v1.0/llms.txt
---

# What is the Authenticated Traffic Solution?

Learn how to benefit from an Authenticated Traffic Solution to enable data-driven targeting and to dramatically increase the value of your inventory—without third-party cookies.

The Authenticated Traffic Solution (ATS) is a privacy-first, PII-authentication solution that improves programmatic addressability across the open web. ATS provides a persistent people-based identifier throughout the programmatic supply chain, starting at the inventory source.

The ATS API and associated client-side JavaScript libraries provide publishers and supply-side partners with the ability to safely resolve PII touchpoints to encrypted, pseudonymous *Identity Envelopes* for subsequent activations by Server-Side Platforms (SSPs) and exchanges. Identity resolution is processed in secure, server-to-server environments.

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