Terms of Service

Version 1.1 · Effective October 20, 2026

Buy Box Checker ("Buy Box Checker," "we," "us," or "our") is a product of Ad Badger Inc., a Delaware corporation with its principal place of business in Austin, Texas. These Terms of Service (the "Terms") govern access to and use of the Buy Box Checker website at buyboxchecker.com, our Buy Box monitoring software and applications, and our APIs and Model Context Protocol interfaces (collectively, the "Service").

The Service is offered for business use only. By checking the box or otherwise affirmatively indicating acceptance of these Terms, you agree to be bound by them. If you accept these Terms for a company or other legal entity, you represent that you have authority to bind that entity, and "you" and "your" refer to that entity. If you do not agree, do not create an account or use the Service.

These Terms incorporate our Privacy Policy. The Data Processing Addendum available at https://www.buyboxchecker.com/dpa (the "DPA") is incorporated into these Terms and applies automatically, without a separate signature, to the extent we process Customer Personal Data on your behalf that is subject to the GDPR or UK GDPR. "Customer Personal Data" has the meaning given in the DPA. The DPA controls to the extent of any conflict concerning that processing.

1. What the Service Does

Buy Box Checker monitors public Amazon product listings. Depending on your plan, the Service may track Featured Offer or "Buy Box" ownership, competing seller offers, pricing, delivery estimates, stock signals, Best Sellers Rank, and changes to product-page content across supported Amazon marketplaces and geographic locations.

We collect this information from publicly accessible Amazon product pages through a third-party data collection provider. We are not an Amazon partner, and we do not use Amazon's Selling Partner API to gather this data. Section 12 explains important limits on this data and the Service.

Supported marketplaces. As of this version, the Service supports amazon.com, amazon.co.uk, amazon.ca, and amazon.ie. Marketplaces other than amazon.com require a paid plan. We may add or remove supported marketplaces as provided in Section 13.

Checking frequency. Listings on active plans are generally checked approximately once per day. The Service does not provide real-time or event-triggered monitoring. Notifications are delivered as a daily digest by email and, where configured, by webhook. We do not guarantee the timing or delivery of any individual check or notification.

2. Accounts and Eligibility

You must be at least 18 years old, legally capable of entering into a binding contract, and obtaining the Service solely for business purposes, not for personal, family, or household use. You must provide your business or brand name and country of establishment. If you are established in the United Kingdom or the European Economic Area, or the DPA otherwise applies, you must also provide your legal entity name, registered address, privacy contact, and role as Controller or Processor. You are responsible for all activity under your account, the accuracy of information you provide, and the security of your credentials and API tokens. Notify us promptly at help@buyboxchecker.com if you believe an account or credential has been compromised.

You represent that you are not located in, organized under the laws of, or ordinarily resident in a country or territory subject to comprehensive United States sanctions and that you are not identified on a United States government restricted-party list. You will not make the Service available to any such person. We may suspend or terminate access as necessary to comply with sanctions or export-control law.

You may not share a single user login among multiple people. Additional users must have separate seats under Section 3.

Acceptance records. You accept these Terms only through an affirmative acceptance process presented by us. We will record and retain the account identifier, user identifier, business or brand name, country of establishment, legal entity name and registered address if the DPA applies, privacy contact, role, date and time, Terms version, DPA version, acceptance event, and related technical information needed to establish assent and the integrity of the acceptance record.

3. Plans, Usage Limits, and Seats

The unit of usage is an ASIN check. One ASIN monitored in one location equals one ASIN check. For example, monitoring 10 ASINs across three locations consumes 30 ASIN checks.

Current plans, features, limits, and prices are displayed on our pricing page and at checkout. The plan, billing frequency, and price displayed when you submit an order control for the applicable billing period. We may change plans, limits, and prices only as provided in these Terms.

Legacy plans. Some accounts may remain on discontinued plans with different limits at our discretion. We may migrate a legacy account to a current plan on at least 30 days' prior notice. A price change is also subject to Section 4.

Team seats. Paid plans may add member seats at the per-seat price displayed when the seat is added, up to the then-current account maximum. Seat charges may be prorated for the remainder of the current billing period. Members may receive access to all brands or only specified brands, as configured by the account administrator.

Referral capacity. Additional ASIN-check capacity earned through a referral program is a promotional benefit, not a purchased entitlement. We may adjust or withdraw unused promotional capacity if we discontinue or modify the program, but we will not retroactively reduce purchased plan capacity for a period already paid.

Exceeding limits. If you exceed plan limits, we may decline new listings, pause additional checks, or require an upgrade. We will not charge an overage fee unless you first affirmatively agree to it.

4. Fees, Billing, and Automatic Renewal

Paid plans are billed in advance through Stripe. You authorize us and Stripe to charge the payment method associated with your account for subscription fees, renewals, prorated seat changes, and applicable taxes.

Automatic renewal terms. Unless a different billing frequency is displayed and accepted at checkout, each paid subscription has an initial term of one month and automatically renews for successive one-month terms until cancelled. At each renewal, we will charge the then-current monthly price for your plan, plus applicable taxes, to the payment method on file. You may cancel at any time through the Stripe billing portal available in your account settings. If you cannot access the portal, contact help@buyboxchecker.com for assistance. Cancellation stops future renewal charges and takes effect at the end of the then-current paid billing period.

Price changes. We may change a paid plan's price by providing notice by email not less than 21 days and not more than 30 days before the first charge at the new price. If applicable law requires a different notice period or content, we will comply with that law. If you do not accept a price change, you must cancel before the first renewal at the new price.

Taxes. Fees exclude sales, use, value-added, and similar transaction taxes. You are responsible for those taxes, other than taxes based on our net income.

Failed payments. If a charge fails, we may retry the charge and suspend access until payment succeeds. We will attempt to notify you before suspension where reasonably practicable.

Billing errors. Notify us within 60 days after a charge you believe is incorrect. This notice period does not limit a nonwaivable right under applicable law.

5. Cancellation and Refunds

You may cancel at any time. Unless applicable law requires otherwise, cancellation takes effect at the end of the current paid billing period, access continues through that date, and no further renewal charge will be made.

Fourteen-day money-back guarantee. If you are not satisfied with the Service, contact help@buyboxchecker.com within 14 days after your first paid subscription charge. We will refund that first charge in full. The guarantee applies once per account and does not apply to later renewals, seat additions, or reactivated subscriptions.

A Free plan is available so that you can evaluate the Service before making any payment.

Other refunds. After the 14-day period, paid fees are nonrefundable except for a confirmed billing error, a refund expressly required by Section 13, or a refund required by applicable law. We may issue a credit or refund in our discretion. A discretionary credit or refund does not amend this policy or create an obligation to provide the same accommodation in another case.

After cancellation. At the end of the paid period, the account ordinarily reverts to the Free plan. We may stop collecting new data and delete monitoring history as described in Section 8. Export needed data before the paid period ends.

6. Free Plan

The Free plan is provided without charge and on an "as is" and "as available" basis. We may require a payment card to activate a Free account because each account consumes paid data lookups, but we will not charge the card while the account remains on the Free plan unless you affirmatively select a paid plan.

The Free plan may have reduced limits, may be restricted to amazon.com, and may exclude outbound notifications. We may change, limit, suspend, or discontinue the Free plan at any time without notice. Our indemnification obligation in Section 20 does not apply to the Free plan. Your obligations and all disclaimers, limitations, and other provisions that by their nature apply to Free-plan use remain in effect.

7. Acceptable Use

You may use the Service for your internal business purposes. You may not:

  1. resell, sublicense, syndicate, or redistribute the Service or any raw or bulk dataset obtained from it. An agency or consultant may use the Service and present outputs to clients whose ASINs it monitors, but may not package, export, or resell our data as a standalone dataset, feed, or product;
  2. use the Service to build, train, or improve a competing product or dataset, or benchmark the Service for that purpose;
  3. use output of the Service, including output obtained through the API or MCP interfaces, to train, fine-tune, or evaluate any machine-learning model, or permit any third party to do so, other than for your own internal analysis of your own monitored listings;
  4. reverse engineer, decompile, disassemble, or attempt to derive source code or nonpublic underlying components of the Service, except to the limited extent a restriction is prohibited by applicable law;
  5. use a bot, crawler, scraper, headless browser, or other automated means to extract data from the dashboard or interfaces, except through programmatic access we expressly provide;
  6. circumvent plan limits, rate limits, access restrictions, or authentication;
  7. interfere with the integrity, security, or performance of the Service, or attempt unauthorized access to it;
  8. use the Service in violation of applicable law or Amazon terms that apply to you; or
  9. upload or transmit material that infringes third-party rights, violates law, or contains malicious code.

We may suspend activity that places a disproportionate load on the Service or presents a security risk, after attempting to contact you where reasonably practicable.

8. Your Data

As between the parties, you retain ownership of ASINs, brands, locations, account content, and other information you submit to the Service, together with monitoring history generated specifically for your account (collectively, "Your Data"). We claim no ownership of Your Data. Your ownership does not extend to the Service, our software or methodologies, aggregated or de-identified data, third-party materials, or data that exists independently of your account.

You grant us a worldwide, nonexclusive, royalty-free license to host, copy, process, transmit, and display Your Data only as needed to provide, secure, and support the Service, comply with law, and exercise our rights under these Terms. We may improve the Service using Your Data only within your documented instructions or after aggregating or de-identifying it so that it no longer identifies you or a natural person. Our processing of Customer Personal Data is also subject to the DPA when applicable.

Aggregated data. We may create and use aggregated or de-identified statistics derived from use of the Service if the resulting information does not identify you, an individual, your brands, or your specific ASINs. We will not attempt to reidentify de-identified data.

Retention. Monitoring history is ordinarily retained while the account is active. Certain metrics may use shorter rolling periods even when underlying history remains available. We may introduce reasonable retention limits on prior notice.

Deletion. You may request deletion of an account and Your Data at help@buyboxchecker.com. We will delete or anonymize Your Data within 30 days after a valid request or termination, except to the extent retention is required by law or reasonably necessary for security, fraud prevention, dispute resolution, or financial recordkeeping. Data in backups may remain until overwritten in the ordinary backup cycle and will remain protected and unavailable for ordinary use.

9. Our Intellectual Property

We and our licensors own the Service, software, interfaces, documentation, content, and associated intellectual-property rights. During an active account, we grant you a limited, nonexclusive, nontransferable, nonsublicensable, revocable right to use the Service in accordance with these Terms.

If you provide feedback or suggestions, you grant us a perpetual, irrevocable, worldwide, royalty-free right to use them without restriction or obligation to you.

10. Exporting Your Data

You may view and export available data through the Service while the account is active. If you need a bulk export not offered through the interface, contact us and we will make a reasonable effort to assist. We have no obligation to retain or produce Your Data after the applicable deletion period.

11. API and AI Assistant Access

We may provide programmatic access, including a Model Context Protocol server that allows an AI assistant authorized by you to query account data. You are responsible for activity performed through your credentials, API tokens, integrations, webhooks, or authorized AI assistants, including instructions and permissions you provide to them. You are also responsible for configuring each authorized AI assistant so that Service data is not retained or used for model training by the assistant provider.

Treat API tokens and integration credentials as sensitive credentials. We may rate-limit, suspend, revoke, or modify API or MCP access to protect the Service, enforce these Terms, comply with law, or reflect changes to the Service. Programmatic interfaces may change more frequently than the web interface.

12. Amazon Data, Accuracy, and Independence

This Section describes an important limitation of the Service.

Independent service. Buy Box Checker is an independent analytics service. It is not affiliated with, endorsed by, sponsored by, or connected to Amazon.com, Inc. or its affiliates. Amazon and related names and marks are the property of Amazon.com, Inc. or its affiliates. References to Amazon, the Featured Offer, and the term "Buy Box" are used only to identify and describe the public marketplace features monitored by the Service. We do not use Amazon logos or trade dress under these Terms, and no Amazon reference grants us or you any Amazon authorization.

Point-in-time observations. The Service records what a public Amazon product page displayed when checked from a particular location. The data is a sample, not a complete or continuous record. Content may change between checks.

Possible error or incompleteness. Amazon may personalize product pages by location, customer, device, or session and may change page structure without notice. Third-party collection may fail, time out, or return partial results. Featured Offer ownership may be inferred from seller identity and that inference may be wrong. The absence of a signal does not establish the opposite condition.

Not a system of record. The Service is a monitoring and alerting tool, not an accounting system or substitute for Amazon Seller Central. Do not make pricing, inventory, legal, enforcement, or advertising decisions solely from Service data without independent verification.

Your enforcement decisions. If you use the Service to identify an unauthorized seller, suspected hijacker, or policy issue, any contact, report, complaint, or legal action is solely your decision and responsibility. We do not determine whether a seller is unauthorized or has violated law or policy.

Your relationship with Amazon is independent of us. You are responsible for your own compliance with Amazon terms and policies.

13. Service Availability, Third-Party Dependencies, and Changes

We do not promise a specific uptime and do not provide a service-level agreement unless a separate written order expressly states otherwise.

The Service depends on access to public Amazon data and on third-party collection, hosting, database, email, analytics, and other services. We use commercially reasonable efforts to operate the Service, but we do not control those dependencies.

Third-party interruption. To the extent an interruption, degradation, delay, missed check, or loss of data is caused by a third party, a change to a third-party system or terms, or another event beyond our reasonable control, and not by our breach of these Terms, the event is not a breach by us and does not by itself entitle you to a refund or credit.

Legally or technically required discontinuation. We may immediately pause, restrict, modify, or discontinue a data feed, metric, marketplace, or feature if continued collection or operation becomes technically infeasible, commercially impracticable, or legally inadvisable, including because of a demand or claim by Amazon or another third party, a change to third-party terms, or blocking of collection infrastructure. We will provide notice when legally permitted and reasonably practicable.

If a permanent discontinuation materially reduces the core functionality of your paid plan and we do not provide a substantially equivalent replacement, you may cancel the affected paid subscription and request a prorated refund for the unused portion of the current billing period. That refund is your sole and exclusive monetary remedy for the discontinuation, subject to liability that cannot be limited by law.

Voluntary material changes. We may add, modify, or remove features in the ordinary course. If we voluntarily make a change that materially reduces the core functionality of a paid plan, we will provide reasonable advance notice when practicable. You may cancel and request a prorated refund for the unused portion of the current billing period if we do not provide a substantially equivalent replacement.

That refund is your sole and exclusive monetary remedy for the voluntary material change, subject to liability that cannot be limited by law.

14. Third-Party Services and Subprocessors

The Service relies on third-party providers for functions such as hosting, authentication, databases, payment processing, email delivery, data collection, background jobs, analytics, AI-assisted features, support, and referral administration. A current list of subprocessors and other material providers is available at https://www.buyboxchecker.com/sub-processors.

We are not responsible for a third-party service that you independently connect to the Service or for third-party websites that we merely link to. Our responsibility for subprocessors that process Customer Personal Data on our behalf is governed by the DPA when applicable.

15. Data Protection

We process personal data as described in our Privacy Policy. The DPA at https://www.buyboxchecker.com/dpa applies automatically, without a separate signature, where we process Customer Personal Data on your behalf that is subject to the GDPR or UK GDPR. The DPA includes processor terms, security obligations, subprocessor controls, and international-transfer provisions. Contact help@buyboxchecker.com if you require a countersigned copy.

Each party is responsible for its own compliance with data-protection law. You must provide all notices, establish all legal bases, and obtain all permissions necessary for us to process Customer Personal Data according to your documented instructions and these Terms.

16. Referral Program

If you participate in a referral program, additional program terms may govern eligibility, referral credit, commissions, and prohibited self-referrals. We may modify or end the program prospectively. We may withhold or reverse a benefit obtained through fraud, misrepresentation, duplicate accounts, or a violation of program terms.

17. Confidentiality

"Confidential Information" means nonpublic information disclosed by one party to the other that is identified as confidential or that reasonably should be understood to be confidential in context. It does not include information that the receiving party can document: (a) is publicly available without breach; (b) was lawfully known without restriction before disclosure; (c) is received lawfully from a third party without a confidentiality duty; or (d) is independently developed without use of the disclosing party's Confidential Information.

The receiving party will use the other party's Confidential Information only to exercise rights and perform obligations under these Terms. It will protect that information using at least reasonable care and disclose it only to personnel and contractors who need to know it and are bound by confidentiality obligations at least as protective as this Section.

If law requires disclosure, the receiving party may disclose the required portion after giving advance notice when legally permitted and reasonable assistance, at the disclosing party's expense, if the disclosing party seeks protection. Published prices are not Confidential Information.

18. Disclaimers

EXCEPT AS EXPRESSLY STATED IN THESE TERMS, THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE." TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL EXPRESS, IMPLIED, AND STATUTORY WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE; THAT DATA WILL BE ACCURATE OR COMPLETE; THAT A DEFECT WILL BE CORRECTED; OR THAT THE SERVICE WILL PRODUCE A PARTICULAR COMMERCIAL RESULT.

Some jurisdictions do not permit certain warranty exclusions. An exclusion applies only to the extent permitted in the applicable jurisdiction.

19. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, NEITHER PARTY WILL BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, SALES, GOODWILL, OR DATA, ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE, EVEN IF ADVISED THAT SUCH DAMAGES WERE POSSIBLE.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, OUR TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE, UNDER ALL THEORIES OF LIABILITY AND FOR ALL RELATED EVENTS, WILL NOT EXCEED THE GREATER OF: (A) THE FEES YOU PAID US FOR THE SERVICE DURING THE 12 MONTHS IMMEDIATELY BEFORE THE FIRST EVENT GIVING RISE TO LIABILITY; OR (B) US $500.

The exclusions and cap in this Section apply to our obligations under Section 20. They do not limit your payment obligations; your indemnification obligations; your liability for breach of Section 7 (Acceptable Use), Section 9 (Our Intellectual Property), or Section 17 (Confidentiality); your misappropriation of our intellectual property; either party's liability for its fraud, gross negligence, or willful misconduct; or liability that cannot be excluded or limited by law.

The parties agree that this Section allocates risk and is an essential basis of the bargain, including if a limited remedy fails of its essential purpose.

20. Indemnification

Your indemnification. You will defend us, our affiliates, and our respective officers, directors, employees, and agents against a third-party claim arising from: (a) Your Data; (b) your breach of these Terms or misuse of the Service; (c) an enforcement, reporting, or escalation action you take based on Service data; (d) your pricing, advertising, listing, or other commercial decision based on Service data; or (e) an allegation that your content, listing, brand, or mark infringes or violates a third party's rights. You will indemnify those protected parties for damages, judgments, settlements, and reasonable external legal fees finally awarded or incurred in an approved settlement.

Our intellectual-property indemnification. For a paid plan, we will defend you against a third-party claim alleging that the Service, as provided by us and used as permitted by these Terms, directly infringes a United States patent, copyright, or trademark. We will indemnify you for damages, judgments, settlements, and reasonable external legal fees finally awarded or incurred in an approved settlement. This obligation does not apply to a claim arising from Your Data; a modification not made by us; a combination with an item not provided or approved by us; continued use after we provide a noninfringing replacement or instruct you to stop; or use that violates these Terms.

If the Service is, or in our reasonable judgment is likely to become, subject to an infringement claim, we may obtain the right for continued use, modify or replace the affected component, or terminate the affected paid subscription and provide a prorated refund for its unused portion. This paragraph and the preceding paragraph state our entire obligation and your exclusive remedy for an intellectual-property infringement claim.

Procedure. The indemnified party must give prompt written notice, except that delay relieves the indemnifying party only to the extent materially prejudiced. The indemnifying party controls the defense and settlement, and the indemnified party will provide reasonable cooperation at the indemnifying party's expense. The indemnifying party may not settle a claim in a manner that admits fault by, imposes nonmonetary obligations on, or fails to provide a complete release to the indemnified party without that party's prior written consent, not to be unreasonably withheld.

21. Suspension and Termination

We may suspend or terminate access if: (a) you materially breach these Terms and fail to cure a curable breach within a reasonable period after notice; (b) a payment failure remains unresolved; (c) we reasonably believe use of the Service threatens its security, integrity, or availability or another customer; or (d) suspension or termination is required by law or a binding third-party restriction. We may act immediately where delay would create material risk but will give notice when legally permitted and reasonably practicable.

You may terminate by cancelling under Section 5. Termination does not relieve a party of obligations accrued before termination.

Sections 8, 9, 10, 12, 13, 17, 18, 19, 20, 23, and 24 survive termination, together with any other provision that by its nature should survive.

22. Changes to These Terms

We may update these Terms prospectively. We will provide at least 30 days' prior notice of a material change by email or in-product notice, unless a shorter period is required to address law, security, abuse, or a third-party restriction. The notice will identify the effective date and provide access to the revised text. This Section does not govern a price change, which is governed by Section 4. Changes to the DPA are governed by the DPA's own amendment provision and not by this Section.

We may require you to affirmatively accept a revised version before continued use. If a revision materially changes your rights or obligations, we will not rely solely on a silent or passive failure to opt out where applicable law requires affirmative consent. If you do not agree to a revised version, you must stop using the Service and cancel before it takes effect.

We will identify the current version and effective date and maintain an accessible record of prior versions.

23. Governing Law and Disputes

These Terms and any dispute arising out of or relating to them or the Service are governed by Texas law, without regard to conflict-of-laws principles. Each party irrevocably submits to the exclusive jurisdiction of the state courts located in Travis County, Texas, and the United States District Court for the Western District of Texas, Austin Division, and waives an objection based on venue or inconvenient forum, except to the extent the DPA, the EU Standard Contractual Clauses, or the UK Addendum requires otherwise.

The United Nations Convention on Contracts for the International Sale of Goods does not apply.

24. General

Entire agreement and order of precedence. These Terms, the Privacy Policy, any applicable DPA, and any order or program terms expressly incorporated by reference form the entire agreement concerning the Service and supersede prior or contemporaneous discussions on that subject. An applicable DPA controls for Customer Personal Data. A written order signed by both parties’ controls over these Terms only to the extent it expressly identifies the provision it overrides.

Assignment. You may not assign or delegate these Terms without our prior written consent. We may assign these Terms to an affiliate or in connection with a merger, reorganization, financing, acquisition, or sale of all or substantially all of the assets or business to which these Terms relate. Any other attempted assignment is void.

Severability. If a provision is held unenforceable, it will be enforced to the maximum extent permitted and the remaining provisions will remain in effect.

Waiver. A waiver must be in writing and applies only to the specific instance stated. A failure or delay in exercising a right is not a waiver.

Independent parties. The parties are independent contractors. These Terms do not create a partnership, joint venture, fiduciary, employment, franchise, or agency relationship.

Force majeure. Neither party is liable for delay or failure caused by an event beyond its reasonable control, except that this provision does not excuse payment obligations for Service already provided.

Notices. We may send operational and contractual notices to the email address associated with your account or through a conspicuous in-product notice. Notices to us under these Terms must be sent to help@buyboxchecker.com and, for a claim or formal legal notice, by a nationally recognized overnight carrier to the address in Section 25. Email notice to us is effective when received and capable of being accessed. Postal notice is effective on documented delivery.

No third-party beneficiaries. Except for indemnified parties under Section 20 and data subjects with rights under the EU Standard Contractual Clauses or UK Addendum, these Terms do not create third-party beneficiary rights.

Headings. Headings are for convenience and do not affect interpretation.

25. Contact

Ad Badger Inc.
2028 E Ben White Blvd, Ste 240-4800
Austin, TX 78741, USA

General, billing, privacy, data requests, and legal notices: help@buyboxchecker.com

Prior versions: Terms of Service v1.0