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

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

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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