1. Introduction
Tangison Agent is built and maintained by Tangison, a small independent software brand owned by Tangi Iigonda. The parent company and its other projects live at tangison.com. This privacy policy covers two surfaces: the marketing website you are reading right now at agent.tangison.com, and the open-source Tangison Agent software you can self-host. The two surfaces are very different from a privacy standpoint. The marketing website is ours. We decide what it collects, and we keep that list deliberately tiny. The self-hosted software is yours. When you deploy Tangison Agent on your own server, you become the data controller. That means this policy does not cover your deployment, your prompts, your files, or your audit logs. Those are governed by whatever privacy policy you choose to publish for your own users. If that distinction matters to you, read the Self-hosting data sovereignty section below. We have written this policy in plain language so you can audit it in a few minutes, not a few hours.
2. Data we collect
The marketing website at agent.tangison.com collects no personal data through forms. We do not ask for your name, your email address, your phone number, or your company name anywhere on this site. The waitlist button on the homepage does not submit a form to our servers. It opens a WhatsApp conversation with Tangi Iigonda directly. That means your contact details stay inside WhatsApp, on your device and on WhatsApp's servers, and never pass through our infrastructure. The AI concierge widget in the corner of this site lets you ask questions about Tangison Agent. When you send a message through that widget, your text is sent to the OpenRouter API so the model can produce a reply. We do not log your chat transcripts on our side. We do not store your messages in a database. We do not build a profile of who asked what. Once the model replies and the request completes, the message is gone from our runtime memory.
3. Third-party keys and the AI widget
If you use the AI concierge widget on this site, your message is sent to the OpenRouter API. OpenRouter routes your request to the underlying model provider. OpenRouter's own privacy policy applies to that transmission, and you can read it on the OpenRouter website. We do not see, store, or transit your OpenRouter key. The widget on this marketing site uses a key that belongs to Tangison, not to you. When you self-host Tangison Agent, the situation is reversed. Your OpenRouter key lives only in your own .env file on your own server. It never leaves your infrastructure. We never see it, and we have no way to reach into your deployment. If you rotate your key, that is between you and OpenRouter. We cannot help you recover a lost key, and we will never ask you for it. Treat it like a password. If anyone ever claims to be from Tangison and asks for your key, that person is not us.
4. Self-hosting and data sovereignty
When you self-host Tangison Agent, all data stays on your infrastructure. Prompts you send to the agent, files the agent reads or writes, audit logs of every tool call, and the API keys you configure never touch Tangison servers. We do not phone home. We do not collect telemetry. We do not have a license server that your deployment needs to call. You are the data controller for your deployment. That gives you complete sovereignty, and it also gives you complete responsibility. You are responsible for your own compliance with the GDPR if you serve users in the European Economic Area, with POPIA if you serve users in South Africa, with HIPAA if you process protected health information in the United States, and with any other data protection regime that applies to your users. We can advise on configuration, but we cannot act as your data processor. Read the documentation at tangison.com for guidance on hardening your deployment.
5. Cookies
We use a minimal set of cookies on this marketing website. We do not use advertising cookies, we do not use cross-site tracking cookies, and we do not use third-party analytics cookies. The few cookies we do set are essential for the site to function. For example, if you open the AI concierge widget, a session cookie keeps the conversation context while you have the page open. If you dismiss the mobile menu, a cookie remembers that choice so the menu does not pop back open on the next page load. That is the full list. We do not add anything else. If you want the complete breakdown of every cookie, including its name, purpose, and lifetime, read our separate Cookie Policy at /cookies. That page also explains how to disable cookies in your browser and what happens when you do. The short version is this: turn cookies off, and the site still works, but the AI widget will not remember your conversation between page loads.
6. Analytics
We do not run third-party analytics on this marketing site. There is no Google Analytics, no Plausible, no Fathom, no Mixpanel, no Hotjar, and no Facebook Pixel. We made this choice on purpose. Analytics scripts, even the privacy-friendly ones, create a separate audience of third parties who learn something about your browsing behavior. We did not want that audience, so we did not install the scripts. We do read our server access logs from time to time to debug errors and to understand aggregate traffic volume, like how many requests per day hit the homepage. Those logs do not contain your name, your email, or any identifier that could be tied back to you as a person. They contain IP addresses, which we treat as operational data, not personal data. We rotate those logs on a short schedule. We do not sell or share access to them with anyone outside Tangison.
7. Children's privacy
This website is not directed at children under the age of 16. We do not knowingly collect personal data from children. The Tangison Agent software itself is a developer tool intended for use by engineers, operators, and business owners who want to run AI workloads inside their own infrastructure. It is not a consumer product, and we do not market it to minors. If a child does reach this site, for example by following a link from a developer blog, they will find no forms to fill in, no account to create, and no way to hand us personal data. The waitlist button opens WhatsApp, which has its own age gate. If you are a parent or guardian and you believe your child has shared personal data with us through a channel we did not anticipate, contact us at contact@tangison.com and we will take reasonable steps to delete that data. We do not knowingly retain information from children.
8. Changes to this policy
We may update this privacy policy from time to time. When we make a material change, like adding a new data collection practice or changing who processes data on our behalf, we will announce it on tangison.com and update the "Last updated" date at the top of this page. We will not retroactively apply a more permissive policy to data we collected under a stricter one. If you want to track changes over time, the source for this page lives in our public repository, and the commit history shows every revision. We encourage you to revisit this page periodically. If a change is significant enough to require your consent under applicable law, we will ask for it explicitly rather than burying the change in a quiet update. Routine edits, like fixing a typo or clarifying a sentence, do not count as material changes and will not be announced separately. We treat your trust as the one thing we cannot replace, and we protect it accordingly.
9. Contact
If you have a question about this privacy policy, or about how your data flows through the Tangison Agent marketing website, the fastest way to reach us is WhatsApp. Message Tangi Iigonda directly through the button below. He reads every message and replies within one business day. If your inquiry is detailed, or if you prefer email, write to contact@tangison.com and include "Privacy inquiry" in the subject line. You can also read more about Tangison and its other projects at tangison.com. We treat privacy questions as a priority, not a legal formality. For questions about a self-hosted deployment of Tangison Agent, remember that you are the data controller. We can advise on configuration, but we have no access to your instance. We respond in English. If you write to us in another language, we will do our best to reply, but we cannot promise a fast turnaround. We do not charge for privacy questions, and we will not ignore a reasonable inquiry.
Privacy inquiries