BidX Review

BidX automates Amazon and Walmart advertising, adjusting bids, building campaigns and running Amazon DSP display and video ads. What decides whether it suits you is the pricing structure: every tier adds an undisclosed percentage of your connected ad spend on top of a fixed base fee, so the bill moves with your spend even though the rate itself is never published.

What is BidX?

BidX is made by BidX GmbH, based in Darmstadt, Germany, and founded in 2018. It works against Amazon and Walmart directly through their advertising APIs rather than through a storefront app, and has no Shopify App Store listing. The main product is a web platform, with a companion BidX App for iOS and Android.

What BidX runs for you

BidX covers Amazon Sponsored Products, Sponsored Brands and Video, and Sponsored Display, plus Amazon DSP for display and video ads, and it automatically adjusts bids and keywords to hit a target ACOS. Dayparting and automated negative keyword storage are both included, and a Campaign Creator builds new campaign structures rather than only managing existing ones.

Customized rules give control over how the automation behaves, and BidX offers a read-only MCP interface that connects to Claude, ChatGPT or another MCP client to query advertising data in plain language. AI is used for keyword suggestions, not for generating ad creative. Beyond the self-service software, Managed Platform and Managed Service tiers add a dedicated Growth Manager who handles strategy and operations, each still billed as the base fee plus the same undisclosed share of connected ad spend.

Integrations and setup

BidX connects to the Amazon Advertising API and the Selling Partner API, and offers Google Single Sign-On for individual login. One-on-one onboarding is included as a complimentary part of every plan.

BidX pricing: what each plan gives

Amazon Search has three tiers: Self Service Platform at 495 € plus a percentage of connected ad spend a month, Managed Platform at 1.995 € plus the same percentage, and Managed Service at 4.995 € plus the same percentage. Amazon DSP has a Self Service Platform at 495 € plus a percentage of ad spend and a Managed Service at 995 € plus a percentage of ad spend. Amazon Marketing Cloud Default Reports is a flat 295 € a month with no ad-spend component. The percentage of ad spend added on top of every Search and DSP tier's base fee is not published.

There is no free plan and no free trial. New customers instead go through a paid three-month proof-of-concept period. All plans run on an annual commitment with monthly payments.

Privacy and security

BidX is the controller within the meaning of the GDPR and other national data protection laws. Support runs through email, chat and a private community on social media.

Who BidX suits

BidX suits Amazon and Walmart sellers who want automated bid management across Sponsored Products, Sponsored Brands and Video, Sponsored Display and DSP in one platform, with complimentary one-on-one onboarding and the option to hand campaign strategy to a Growth Manager on the Managed tiers.

It suits less well anyone who wants a plain, predictable monthly bill, since every tier's base fee is topped up by an undisclosed percentage of ad spend, and anyone unwilling to commit to an annual contract or a paid proof-of-concept period before starting.

Screenshots

Frequently Asked Questions