Legal

Legal

Everything legal, in one place. Two groups: the documents for the hosted service you sign up to, and the notices for this website and the open-source software, which need no account at all.

The hosted service (app.contenox.com)

All six are published here. The copies served inside the app are mirrors of these.

This website and the software

The rest of this page. Using the open-source software needs no account, and none of the documents above apply to it.

Legal notice (Impressum gem. § 5 DDG)

Alexander Ertli
Jungfernstieg
20354 Hamburg, Germany

E-mail: hello@contenox.com
Web: ertli.com

Editorial responsibility (§ 18 Abs. 2 MStV)
Alexander Ertli, address as above.

VAT ID (USt-IdNr.): DE429161583
Tax number: 2247005603265

Online dispute resolution pursuant to Art. 14 (1) ODR-VO: consumer-redress.ec.europa.eu. We are not obligated and not willing to participate in dispute resolution proceedings before a consumer arbitration board.

License, warranty and liability

Contenox is open-source software released under the Apache License 2.0. That licence governs your use of the software. The sections below describe what it means in practice; they do not replace it.

What the software does — and what is warranted

The contenox software gives access to the AI model you pick, under the configuration you wrote. Exactly this is warranted, and no more:

• that it is configurable;
• that it reaches only the AI model you named, as your rules specify;
• that it carries out the processing and checking steps you declared through the task engine, reviewed, and approved by using it.

The interfaces — in the terminal and in the browser — build on that task engine. They are example implementations of the contenox governance system — the rule format, approvals by a human, and the triggers you declare — not validated end products for any particular purpose.

The software makes no substantive decisions. The choice of AI model, the prompts, the rules, the approvals and what an AI agent may touch on your machine are your determinations. The correctness of the AI model’s output is neither checkable nor warranted.

What is ours, and what is not

Contenox is an assembly, and being precise about which part is our work decides what we can fairly be asked to stand behind.

Our own work — the governance system and the parts that carry it:

• the rule format in which you write rules, budgets and limits;
• the human-approval declarations: which actions may not proceed without a person;
• the system of declared triggers;
• the task engine, and the interfaces that build on it;
• the procedure by which a machine pairs to the relay, and the relay’s fixed identity;
• modeld, the layer between contenox and the programs that run AI models on your own computer.

Not ours — used under their own licences and terms, and warranted by their authors rather than by us:

• the AI models themselves, and the services that serve them — Ollama, vLLM, OpenAI, Anthropic, Google Vertex, AWS Bedrock, Mistral, OpenRouter and whatever else you configure;
• the programs that run those models on your computer, such as llama.cpp and OpenVINO;
• the open interface standards contenox follows — the Model Context Protocol (MCP) and the Agent Client Protocol (ACP) — and the editors and tools that also use them;
• the open-source libraries the build depends on, listed in go.mod.

We warrant our own part as described above and nothing beyond it. For anything in the second list, your relationship is with its author or provider, on their terms.

Warranty

The software is provided “as is”, without warranty of any kind — express or implied — including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement.

Liability

Liability is excluded only as far as the law permits. It is not excluded — and under German law cannot be — for intent and gross negligence, for damage arising from injury to life, body or health, under the German Product Liability Act, under Art. 82 GDPR and other mandatory data protection law, or to the extent of an expressly assumed guarantee.

Your role and your obligations — wherever you are based

Contenox is not region-locked. You can run it anywhere, and which rules reach you depends on where you are, where your users are, and whom your deployment affects. The EU AI Act is set out below because we are based here and it is the nearest example. Outside the EU other regimes apply: US state AI statutes, sector regulators, professional rules, and your own country’s data protection and consumer law. Which of them bind you is yours to establish. We cannot know that for you, and we do not.

Regulation (EU) 2024/1689 attaches duties to roles, not to software. Whoever puts an AI system into use under their own authority is its deployer; whoever places it on the market under their own name, assembles it for a purpose of their own, or substantially modifies it becomes its provider.

Running contenox, you make the decisions that create that role: you choose the AI model, you write the configuration, you declare the triggers, and you approve all of it by putting it into service. There is no step approved on your behalf. You therefore determine the purpose and the means — and if you deploy the result in a regulated field or make it available to others, the duties are yours: risk management, documentation, record-keeping, human oversight, transparency, and where applicable conformity assessment. Art. 4 AI Act’s AI-literacy duty already applies to providers and deployers alike.

Using contenox does not discharge any of that. What it gives you is controls an assessment of your own can point at: rules you wrote, approvals recorded durably, captured execution state. The assessment stays yours.

Known limits and risks

The AI model’s output can be wrong and is not checked; automated steps can be irreversible once you permit them, which forbidding rules and approvals by a human limit; incoming content can carry injected instructions; and the system enforces the rules you wrote rather than the ones you meant.

Contenox is not built for fields where an error causes personal injury, or where automated processing decides directly about people — medicine, hiring, credit scoring, law enforcement, critical infrastructure, official decisions. Deploying it there is your assessment to make.

None of this is legal advice.

Data & privacy

The software runs on your machine. Contenox stores its state (sessions, chains, configuration) locally. Inputs and files you include in a request go only to the AI model provider you configured — no server of ours processes your workload. Using the software needs no account and no registration.

The hosted relay is a separate, optional service. If you create an account at app.contenox.com, you can reach the machines you already run from a browser. That service does hold data about you — an account, which machines are paired, and, if you subscribe, a billing reference. It stores no session content: no inputs, no outputs, no files. What it holds, for how long, and how to export or erase it is set out in its own documents: privacy policy, terms of service, and, for consumers, right of withdrawal, and the service imprint. How the service is secured and how to report a vulnerability is on the security page, and the processors it uses are listed under sub-processors. Nothing on this page applies to it, and nothing there is needed to use the open-source software.

This website is static. contenox.com is a static site. It sets no cookies, runs no analytics, and requires no account. Your color-scheme preference is stored locally in your browser (localStorage) and never transmitted. Search runs entirely in your browser against a locally downloaded index.

Third-party requests. The homepage loads release/star badges from img.shields.io and fonts from Google Fonts; those requests are subject to the respective providers’ privacy terms. No other third-party resources are embedded.

E-mail. If you contact hello@contenox.com, we process the information you send to answer your request and for no other purpose.

Last updated: 13 August 2026