Terms of Service
Last updated 23 August 2026
These terms govern your use of BlockAgents.ai. They are written to be read, not to be survived.
By creating a site key or embedding the widget you agree to these terms. If you are agreeing on behalf of a company, you confirm you may bind it. These terms are between you and [Legal entity name].
1. What the service does
We provide a challenge that is easy for people and hard for automated systems, delivered as a browser widget plus an API your server calls to verify a result. We provide it as a signal, not as a guarantee.
Read this part
No CAPTCHA is unbeatable, and we do not claim ours is. A successful verification means someone solved a challenge in a browser within the last five minutes. It does not prove they are human, that they are who they say they are, or that they will not abuse your service. Our security page and the threat model it links to set out exactly what we do and do not stop, including attacks we have measured working against us. Use the signal as one input to your own decisions.
2. Your account
You are responsible for keeping your site secret confidential. Anyone holding it can verify tokens as you. Tell us at security@blockagents.ai if it leaks and we will rotate it.
You are responsible for what happens under your site keys, including by your users and staff.
3. Acceptable use
Do not:
- use the service to gate content that is unlawful where it is served;
- attempt to overwhelm, degrade, or circumvent the service, other than good-faith security research under section 4;
- resell or sublicense access, or operate the service on behalf of third parties, without a written agreement;
- use it to collect personal data from people in ways they have not been told about;
- represent a verification as proof of identity, age, residency, or legal capacity. It is none of those.
4. Security research
We welcome it. Test against your own site keys, do not degrade the service for others, do not access data that is not yours, and report what you find to security@blockagents.ai. We will not pursue legal action over research conducted on those terms, and we ask for 90 days before publication.
5. Availability
We aim for continuous availability and publish status at [status page URL]. Paid plans carry a 99.9% monthly uptime commitment; if we miss it, the remedy is a service credit calculated pro rata against that month’s fee. The free tier is provided as-is with no availability commitment.
We may perform maintenance and will give notice for anything planned that we expect to be user-visible.
6. Fees
Current pricing is at /#pricing. Paid plans bill monthly in advance, plus metered overage in arrears. Fees exclude VAT and other taxes. We will give 30 days’ notice before a price change and it will not apply to a period you have already paid for.
Non-payment: we will email you, and may suspend after 14 days. Suspension makes your challenges fail, which will affect your users — so keep the billing address current.
7. Self-hosting
Self-hosted deployments are licensed separately under a written agreement. Those terms govern that deployment where they conflict with these.
8. Your data
We claim no ownership of anything you send us. The privacy policy describes what we collect, and the DPA is incorporated into these terms where you are a controller under UK or EU data protection law.
9. Intellectual property
We keep all rights in the service, the widget, the challenge mechanism, and the brand. You get a non-exclusive, non-transferable right to use the widget and the API for the duration of your subscription. You keep all rights in your own site.
10. Warranties
We provide the service with reasonable skill and care. Beyond that, and to the fullest extent the law allows, the service is provided without warranty of any kind — including any implied warranty of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the service will block any particular attacker or that it will be uninterrupted or error-free.
11. Liability
Neither party limits liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot lawfully be limited.
Subject to that: neither party is liable for indirect or consequential loss, loss of profit, revenue, goodwill, or data. Our total liability in any 12-month period is capped at the greater of the fees you paid us in the preceding 12 months and [floor amount, e.g. GBP 100].
We are specifically not liable for losses arising from abuse that got past a challenge. That is the nature of the product and section 1 explains why.
12. Indemnity
You will indemnify us against third-party claims arising from your use of the service in breach of these terms.
13. Termination
You may stop at any time by deleting your site keys; we will not refund the current period. We may suspend or terminate for material breach that is not cured within 14 days of notice, or immediately where the breach is unlawful or endangers the service. On termination your keys stop working and we delete your data per the retention schedule in the privacy policy.
14. Changes
We may update these terms. For material changes to paid accounts we will give 30 days’ notice by email; continuing to use the service after that is acceptance. The date at the top always reflects the current version.
15. General
These terms, with the privacy policy and the DPA, are the entire agreement. If a provision is unenforceable the rest survives. A failure to enforce is not a waiver. You may not assign without our consent; we may assign to a successor of the business. Nothing here creates a partnership or agency. There are no third-party beneficiaries.
Governing law is [jurisdiction], and the courts of [jurisdiction] have exclusive jurisdiction.