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Last Updated: 12/10/2025
in Enrich
ID5’s real-time bid enrichment service for publishers is currently in alpha and available by invitation only .
What is ID5's Real-Time Bid Enrichment Service? ID5’s Real-Time Bid Enrichment is an optional, paid-for service for publisher...
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Last Updated: 12/10/2025
in Enrich
This guide explains how to use EID (Extended Identifier) information from an ID5 endpoint response to enrich outgoing OpenRTB bid requests for both OpenRTB 2.6 and 2.5.
Identify and Extract EID Data from ID5 Endpoint Response
The necess...
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Last Updated: 12/10/2025
in Privacy
This endpoint will be deprecated on 30th January 2026 and will be replaced by 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.i...
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Last Updated: 12/10/2025
in Retrieve ID5 IDs
Overview
We recommend that you deploy ID5 in CTV environments via a server to server integration. We do support alternative integration pathways depending on your requirements. If required, please reach out to your ID5 customer services repre...
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Last Updated: 12/04/2025
in Get Started Core Value Proposition Prevent data leakage by permissioning user IDs to authorized partners only Ensure compliance with data privacy regulations thanks to ID5’s privacy-by-design technology Identify authenticated and unauthenticated users in a...
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Last Updated: 12/04/2025
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 IDs, w...
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Last Updated: 12/04/2025
in Retrieve ID5 IDs
Overview
We recommend that you deploy ID5 in mobile in-app environments via a server to server integration. We do support alternative integration pathways depending on your requirements. If required, please reach out to your ID5 customer...
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Last Updated: 12/04/2025
in Privacy
Overview The Privacy API Opt-out endpoint allows authorized partners to opt out users from ID5 tracking using various privacy identifiers including ID5 ID, MAIDs, email addresses, and hashed emails. The system handles multiple identifier types an...
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Last Updated: 11/28/2025
in Get Started
Core Value Proposition
Send more identifiable bid requests to buyers to increase CPMs and overall publisher revenue
Deliver strategic value to publishers by supporting their transition to the cookieless future
Reduce operational cost...
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Last Updated: 11/26/2025
in Retrieve ID5 IDs Prebid
ID5 Prebid Integration Workflow
Here’s a step-by-step overview of integrating ID5 into your Prebid configuration for any webpage. Once your Prebid.js setup is configured to fetch the ID5 ID, your demand partners in Prebid can access this ID...