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Bidder Code amx Member no
Prebid.js Adapter yes Prebid Server Adapter no
Media Types display, video Multi Format Support true
TCF-EU Support yes IAB GVL ID 737
GPP Support some (check with bidder) DSA Support check with bidder
USP/CCPA Support yes COPPA Support yes
Supply Chain Support yes Demand Chain Support check with bidder
Safeframes OK yes Supports Deals check with bidder
Floors Module Support yes First Party Data Support yes
User IDs all ORTB Blocking Support yes
Privacy Sandbox check with bidder

Bid Params

Name Scope Description Example Type
tagId required Tag ID 'cHJlYmlkLm9yZw' string
testMode optional Activate 100% fill ads true boolean
adUnitId optional Ad Unit ID used in reporting. Will default to bid.adUnitCode 'sticky_banner' string

Bidder Settings

The AMX RTB bid adapter uses local storage. Please add storageAllowed in your bidder settings:

pbjs.bidderSettings = {
  amx: {
    storageAllowed: true,

Test Parameters

To enable 100% fill test ads, you can use the following params:

  testMode: true,
  tagId: "cHJlYmlkLm9yZw"

This will produce a bid at $10 with a test creative.

Note that the tagId is case-sensitive. Do not use cHJlYmlkLm9yZw in production environments: this ID is for testing only.

First Party Data

From Prebid.js >= 4.30, publishers can use the ortb2 configuration parameter to provide First Party Data. We accept all standard OpenRTB fields for both:

  • ortb2.user

Note that all fields are optional. For contextual data (e.g. categories), standard IAB taxonomies are supported. We do not support passing first party data via bid parameters.

Example - Setting and ortb2.user fields

  bidders: ["amx"],
  config: {
    ortb2: {
      site: {
        keywords: "kw1,kw2",
        cat: ["IAB2"],
        sectioncat: ["IAB2-1"],
        pagecat: ["IAB2-22"],
        content: {
          context: 5,
      user: {
        yob: 1981,
        keywords: "kw3",

"Send All Bids" Ad Server Keys

These are the bidder-specific keys that would be targeted within GAM in a Send-All-Bids scenario. GAM truncates keys to 20 characters.
hb_pb_amx hb_bidder_amx hb_adid_amx
hb_size_amx hb_source_amx hb_format_amx
hb_cache_host_amx hb_cache_id_amx hb_uuid_amx
hb_cache_path_amx hb_deal_amx

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