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Last Updated: 04/03/2025
in Retrieve ID5 IDs
Publisher Provided ID (PPID) Provisioning Some monetization and ad serving platforms like Google and Xandr supporting the passing of a Publisher Provided Identifier (PPID). Google’s PPID , for example, allows publishers to send Google Ad Manage...
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Last Updated: 05/18/2026
When ID5 provides an ID5 ID, we may also include certain metadata. Below you will find the different types of metadata we support and the values they could contain:
Link Type
A/B Testing Control Group
Link...
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Last Updated: 03/14/2025
in Retrieve ID5 IDs Introduction to Guarded Publisher ID (GPID) ID5 is offering partners a license to the Guarded Publisher ID, a publisher specific first-party cross-domain identifier. The GPID is a partner specific version of the ID5 ID which remains unique for...
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Last Updated: 05/28/2026
in Enrich
What is ID5's Real-Time Bid Enrichment Service? ID5’s Real-Time Bid Enrichment is an optional, paid-for service that enables publishers and publisher monetization platforms to improve inventory addressability. When enabled, the ID5 Graph is used ...
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Last Updated: 02/09/2026
in Privacy
This endpoint was deprecated on 9th February 2026. Please use the Opt-Out API Overview The Mobile Opt-in and Opt-out API allows users to opt in and out of ID5 tracking via MAIDs. Opt Out Request Example URL https://api.id5-sync.com/priv...
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Last Updated: 06/19/2026
in Enrich
Overview
Publishers and ad tech partners can choose to use the ID5 Graph to enrich their programmatic transactions with additional data. The Graph enables both probabilistic and deterministic connections between ID5 IDs and Platform Cookie ...
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Last Updated: 04/08/2026
in Retrieve ID5 IDs
Publisher Integration of the ID5 ID via Amazon Publisher Services Enabling ID5 in Web Environments Amazon's APS is the leading suite of cloud services that helps publishers build, monetize, and grow their digital media business. Read below for...
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Last Updated: 10/24/2024
in Access Identity Graphs Overview ID5’s Matching File-Transfer protocol converts a file containing a list of your UIDs to a file containing the equivalent list of UIDs for one or more Match Partners. Available Match Partners are defined by contract between you and ID5. To...
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Last Updated: 04/01/2025
in Retrieve ID5 IDs
ID5 JS API Lite ID5 JS API Lite is a reduced-functionality version of the standard ID5 JS API. Unlike the full API, which facilitates a comprehensive set of identity-related functions, the Lite version is purposefully built to perform a single ...
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Last Updated: 05/21/2026
in Enrich
Overview ID5's Graph can empower ad tech platforms to unlock greater value by connecting users across both cookie-based and cookieless environments. By combining the scale of the ID5 ID footprint with the intelligence of the ID5 Identity Graph, E...