Prebid is an open-source library allowing Media Owners to retrieve demand from multiple bidding partners across their websites, mobile apps, and STV
Streaming TV (STV). Video content that is shown across any device with an internet connection, for example a Connected TV (CTV). apps. A publisher
The owner of a website or app where advertisements are served. can integrate with Index Exchange (Index) using Prebid to connect to all of our demand partners and unlock additional demand.
How Prebid makes calls to Index
You can integrate with Index using our client-side
A type of header bidding where the auction takes place on the user's browser. or server-side
A process where the header bidding takes place on an external server, as opposed to bidding from a browser. This is also called as server-to-server (S2S) header bidding. adapter. The following diagram illustrates the ways Prebid can call Index in a web, mobile app, and STV environment. Index supports all the options.

| Option | Description |
|---|---|
1
| In a web environment, you can add the Prebid.js 1a: Directly from the browser using our client-side adapter. This option tends to have a better cookie match rate than option 1b below. 1b: Prebid.js makes a call to Prebid Server For more information about including Index demand in a Prebid.js implementation, see Integrating with Index using the Prebid.js header bidding adapter. |
2 | In mobile apps, you can use the Prebid Mobile SDK to call Prebid Server and then Prebid Server uses our server-side adapter to call Index. For more information about including Index demand in a Prebid Server implementation, see Integrate with Index using Prebid Server. |
3 | In STV apps, you (or your SSAI |
The following table shows the Index-supported features that are available for each Prebid type.