SDKs: Summary

Review the SDK functionality to determine which SDK or SDKs you want to use, then click through in the SDKs table to review the reference documentation.

SDK Functionality

The following table summarizes the functionality available with each SDK.

UID2 SDK for...	Client-Side or Server-Side	Encrypt Raw UID2 to UID2 Token for Sharing	Decrypt UID2 Token to Raw UID2	Generate UID2 Token from DII	Refresh UID2 Token	Map DII to Raw UID2s*	Monitor Rotated Salt Buckets
JavaScript	Client	—	—	✅	✅	—	—
Java	Server	✅	✅	✅	✅	✅	—
Python	Server	✅	✅	✅	✅	✅	✅
C# / .NET	Server	✅	✅	—	—	—	—
C++	Server	✅	✅	—	—	—	—
Android	Client (Mobile)	—	—	✅	✅	—	—
iOS	Client (Mobile)	—	—	✅	✅	—	—

*Advertisers and Data Providers who need to generate raw UID2s from DII can also do this via Snowflake (see Snowflake Integration Guide) or by using the POST /identity/map endpoint.

SDK Documentation

The following SDK documentation is available for UID2 integration. Documentation links are in the first column.

SDK/Link to Guide	Description	Audience
SDK for JavaScript	Client-side JavaScript SDK that facilitates the process of establishing client identity using UID2 and retrieving UID2 tokens for publishers.	Publishers
SDK for Java	An SDK for audiences using Java server-side: Helps publishers to generate or refresh UID2 tokens from DII (POST /token/generate). Helps UID2 sharers to encrypt or decrypt UID2 tokens (Usage for UID2 Sharers). Helps DSPs to decrypt UID2 tokens from bid requests (Decrypt UID2 Tokens for RTB Use).	Publishers DSPs Advertisers Data Providers Sharers
SDK for Python	An SDK for audiences using Python server-side: Helps publishers to generate or refresh UID2 tokens from DII (POST /token/generate). Helps UID2 sharers to encrypt or decrypt UID2 tokens (Usage for UID2 Sharers). Helps DSPs to decrypt UID2 tokens from bid requests (Decrypt UID2 Tokens for RTB Use).	Publishers DSPs Data Providers Sharers
SDK for C# / .NET	An SDK for audiences using .NET server-side: Helps DSPs to decrypt UID2 tokens from bid requests. Helps UID2 sharers to encrypt or decrypt UID2 tokens.	DSPs Data Providers Sharers
SDK for C++	An SDK for audiences using C++ server-side: Helps DSPs to decrypt UID2 tokens from bid requests. Helps UID2 sharers to encrypt or decrypt UID2 tokens.	DSPs Data Providers Sharers
SDK for Android	An SDK that facilitates the process of generating or establishing client identity using UID2 and retrieving UID2 tokens for publishers that need to support Android apps.	Publishers
SDK for iOS	An SDK that facilitates the process of generating or establishing client identity using UID2 and retrieving UID2 tokens for publishers that need to support iOS apps.	Publishers