The Trade Desk

Unified ID 2.0 (UID2)

Unified ID 2.0 is an open-source, deterministic identity framework seeded by The Trade Desk and now governed by the IAB Tech Lab. UID2 resolves hashed email addresses and phone numbers into rotating tokens that publishers, DSPs, SSPs, and measurement vendors can use for addressable advertising without third-party cookies. The EUID variant provides a GDPR-aligned European deployment.

GitHub

Documentation

📖
Documentation
https://unifiedid.com/docs/intro
📖
Documentation
https://github.com/IABTechLab/uid2docs

Other Resources

🔗
Portal
https://unifiedid.com
🔗
SDKs
https://github.com/IABTechLab/uid2-operator

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API entry from apis.yml

apis.yml Raw ↑ 
aid: trade-desk:trade-desk-uid2-api
name: Unified ID 2.0 (UID2)
tags:
- Identity
- Privacy
- Open-Source
- IAB Tech Lab
tags_raw:
- Identity
- Privacy
- Open Source
- IAB Tech Lab
humanURL: https://unifiedid.com
baseURL: https://prod.uidapi.com
properties:
- url: https://unifiedid.com
  type: Portal
- url: https://unifiedid.com/docs/intro
  type: Documentation
- url: https://github.com/IABTechLab/uid2docs
  type: Documentation
  name: UID2 Documentation Repository
- url: https://github.com/IABTechLab/uid2-operator
  type: SDKs
  name: UID2 Operator Reference Implementation
description: Unified ID 2.0 is an open-source, deterministic identity framework seeded by The Trade Desk
  and now governed by the IAB Tech Lab. UID2 resolves hashed email addresses and phone numbers into rotating
  tokens that publishers, DSPs, SSPs, and measurement vendors can use for addressable advertising without
  third-party cookies. The EUID variant provides a GDPR-aligned European deployment.