There are several custom integration methods to retrieve the ID5 Universal ID via client-side or server-side calls and web services.
- Client-side - Fetch Endpoint — Learn how to make client-side requests for a single Universal ID without the use of Prebid.js or ID5's JS API
- Server-side - Fetch Endpoint — Learn how to make server-side requests for a single Universal ID without the use of Prebid.js or ID5's JS API
- Server Side - Partner Signals Endpoint — Learn how to make server-side requests to ID5 to retrieve Universal IDs in bulk by passing in "hard signals".