Terms of use

The A2A Check service (a2a-check.com, api.a2a-check.com) is provided by Mesut Yilmaz, Hauptstraße 202, 44649 Herne, Germany (sole proprietorship A2A Check, see legal notice). These terms apply to your use of the service. The service is for businesses only (Section 14 German Civil Code); an account is created with a company e-mail address.

A2A Check reviews the configuration of AI agents (for example instructions, settings, skills, hooks and connections) against fixed, published rules and returns a list of findings with remediation hints. The review is static: it assesses the files you submit, not the behaviour of a running agent.

The scope of the rules is described in the public rule catalog. What a report does not cover is stated in the report under “What this report does not check”.

A report is not a certification, an audit, legal or compliance advice, or an assurance that an agent is secure. A report without findings only means that the rules of the catalog did not trigger on the files submitted. Findings can be false alarms, and risks outside the scope of the review remain undetected. You decide at your own responsibility which measures to take. You make changes to your agents yourself, or have your agent make them after your approval.

The free account currently includes up to three agents, five checks per day (UTC) and at most 75 checks per calendar month. We may change these limits for the future; checks already started are governed by the limits when they began. Premium is in preparation and not yet available; separate terms will apply.

Do not submit credentials, customer data or personal data of third parties; the service rejects credentials it detects. You confirm that you are entitled to submit the files. Load tests, automated bulk requests beyond the intended limits, attempts against other accounts or against the operation of the service, and passing your access to third parties outside your company are not permitted. We may block access in case of violations.

The privacy policy states which data we process, how long we keep it and how you can delete it. Where submitted files contain personal data and we process them on your behalf, we offer a data processing agreement (template at /en/dpa). We do not use submitted files to train models and do not pass them to AI model APIs.

We aim for trouble-free operation but owe no particular availability for the free account. Maintenance, outages and changes to the service are possible. We may change or discontinue the service or parts of it with reasonable notice.

We are liable without limit for intent and gross negligence, for injury to life, body or health, under the German Product Liability Act and where we have given a guarantee. For slightly negligent breach of essential contractual obligations (obligations whose fulfilment makes proper performance possible and on which you may regularly rely), liability is limited to the foreseeable, typical damage. Otherwise liability for slight negligence is excluded. These rules also apply to damage arising from reliance on a report or from acting or not acting on its hints.

The free account runs for an indefinite period. You can delete agents and your account at any time; we may terminate the relationship in text form with 14 days’ notice, and without notice for good cause.

We may change these terms with effect for the future; we announce material changes by e-mail. German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. Where permitted, the place of jurisdiction is the provider’s seat. Questions: [email protected].