# Unified ID 2.0 (UID2)

**Canonical:** https://apis.io/apis/trade-desk/trade-desk-uid2-api/  
**Provider:** The Trade Desk — https://apis.io/providers/trade-desk/  
**Base URL:** https://prod.uidapi.com  
**Documentation:** https://unifiedid.com

Unified ID 2.0 (UID2) is one of 9 APIs that [The Trade Desk](https://apis.io/providers/trade-desk/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Identity, Privacy, Open-Source, and IAB Tech Lab. The published artifact set on APIs.io includes API documentation.

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.

## Machine-readable artifacts (4)

- **Portal** — https://unifiedid.com
- **Documentation** — https://unifiedid.com/docs/intro
- **Documentation** — https://github.com/IABTechLab/uid2docs
- **SDKs** — https://github.com/IABTechLab/uid2-operator

## Other The Trade Desk APIs (8)

- [The Trade Desk Platform API](https://apis.io/apis/trade-desk/trade-desk-platform-api/)
- [The Trade Desk Real-Time Conversion Events API](https://apis.io/apis/trade-desk/trade-desk-realtime-conversion-events-api/)
- [OpenSincera API](https://apis.io/apis/trade-desk/trade-desk-opensincera-api/)
- [The Trade Desk Advertiser API](https://apis.io/apis/trade-desk/trade-desk-advertiser-api/)
- [The Trade Desk DeletionOptOut API](https://apis.io/apis/trade-desk/trade-desk-deletionoptout-api/)
- [The Trade Desk OfflineConversion API](https://apis.io/apis/trade-desk/trade-desk-offlineconversion-api/)
- [The Trade Desk ThirdParty API](https://apis.io/apis/trade-desk/trade-desk-thirdparty-api/)
- [The Trade Desk IPAddress Data API](https://apis.io/apis/trade-desk/trade-desk-ipaddress-api/)

## Tags

Identity, Privacy, Open-Source, IAB Tech Lab

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/trade-desk/trade-desk-uid2-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/trade-desk/.