BayesBoard (bayesboard.com and app.bayesboard.com) is a product of Best Business Brands LLC ("BBB", "we", "us"), an Illinois limited liability company, at 20 N Wacker Dr #1000, Chicago, IL 60606, USA. See bestbusinessbrands.com.
These terms apply when you use BayesBoard: the website, the editor (with or without an account), the board API and the MCP server. By using BayesBoard you agree to them. If you use it for an organisation, you confirm you may accept these terms on its behalf.
1. What BayesBoard is
BayesBoard is a decision-support tool. You build boards of hypotheses, evidence, experiments and outcomes, enter your own priors and likelihood ratios, and the engine combines them and explains the result. The outputs reflect your inputs and weights. They are not predictions, and they are not professional, financial, legal, medical or employment advice. You decide what to do with them.
2. Accounts
- Guest mode needs no account; guest boards stay in your browser.
- For an account, give a real email address and keep your password and sign-in methods secure. You are responsible for activity under your account.
- You must be at least 16 to create an account.
3. Plans, prices and payment
- Free includes the full engine and a limited number of cloud-saved boards. Pro adds more boards and storage. Agent adds API keys for the board API and the hosted MCP server. Current limits and prices are on the pricing page.
- Prices are in US dollars and exclude taxes, which are added where the law requires. Payments are processed by Stripe.
- Paid plans (Pro and Agent) renew automatically, monthly or yearly as you chose, until you cancel. You can cancel at any time from the billing portal in your account; the plan stays active until the end of the period you have paid for and is not renewed.
- 14-day money-back guarantee. If you are not happy, email us within 14 days of your first payment for a full refund, no questions asked. For yearly plans this also applies within 14 days of each yearly renewal, and we email you a reminder 7 days before every yearly renewal. Outside those 14 days we do not refund part-periods, except where the law requires it or we end the service ourselves.
- If you are a consumer in the EU or UK, this guarantee includes your 14-day right to withdraw from a new subscription: you get a full refund, not only the unused part.
- If we change the price of your plan, we tell you at least 30 days before it applies to your next renewal.
4. Your boards and content
- Your boards, comments and attachments belong to you. You give us permission to store, process and display them only as needed to run BayesBoard for you, including showing a read-only copy to anyone who has a share link you created.
- You can export any board as JSON at any time.
- You confirm you have the right to the content you upload, and that it does not break the law or anyone else's rights.
5. The API and MCP server
- On the Agent plan you can create API keys. The board API and the MCP server (local or hosted) accept an API key, or a sign-in token for your account, as a bearer token. Anyone holding a key or token can act as you: keep it secret. An API key works until you revoke it or it expires; revoke it in your dashboard as soon as it may have leaked. We store only a hash of each key, and keys stop working if the Agent plan ends.
- You are responsible for what agents and other software do with your keys, including boards they create or change.
- Use the API within its rate limits and plan limits. Do not use it to scrape other users' data, overload the service or get around limits.
- We may change or version the API. We will try to give notice of breaking changes.
6. Acceptable use
Do not use BayesBoard for anything illegal, to store or share malware, to infringe others' rights, to harass anyone, or to attack, probe or disrupt the service or other systems. We may suspend an account or a share link that does, and we will tell you why unless the law or security prevents it.
7. Availability and changes to the service
We work to keep BayesBoard available and your data safe, and we keep backups, but we do not promise uninterrupted service. Keep your own exports of boards that matter to you. We may change features; if we remove a paid feature you rely on, we will tell you in advance and you may cancel.
8. Warranties and liability
- BayesBoard is provided "as is". To the extent the law allows, we disclaim implied warranties, including fitness for a particular purpose.
- To the extent the law allows, we are not liable for indirect or consequential losses, lost profits, or decisions made using BayesBoard, and our total liability for any claim is limited to the amount you paid us for BayesBoard in the 12 months before it arose.
- These limits do not apply to fraud, wilful misconduct, or anything the law does not allow us to limit, and they do not affect your statutory rights as a consumer.
9. Ending your account
You can delete your account at any time from Settings → "Delete account". This deletes it straight away and cancels any paid subscription at the same time, so you are not charged again. You can also ask us to do it by emailing [email protected] from the address on the account; we confirm by email and complete the deletion within 30 days. We may end or suspend an account that seriously or repeatedly breaks these terms. When an account is closed, we delete its data as described in the Privacy Policy, so export anything you want to keep first.
10. Law and disputes
These terms are governed by the laws of the State of Illinois, USA. Courts in Cook County, Illinois, have jurisdiction, unless the law of your country gives you the right to bring a claim where you live. Please contact us first: most problems are solved by a conversation.
11. Changes
We may update these terms. We post changes here with a new date, and tell account holders by email at least 30 days before a change that affects them materially takes effect. The names BayesBoard and Best Business Brands, their logos and the site content belong to Best Business Brands LLC. Questions: [email protected].