Last updated: 10 November 2026. This notice explains what happens to your data when you use the Nihoner connector in Claude or ChatGPT (the “connector”, served from mcp.nihoner.com). It adds to our main Privacy Policy.
What we receive
- Your request to a tool — for example the word you look up, the grammar pattern, quiz settings, or text you ask the reader to analyse. We use it only to produce the answer.
- Technical data — the IP address of each request (held only in memory, for up to an hour, to prevent abuse; it is not written to our logs) and the name of the AI app (for example “Claude”).
- If you connect your Nihoner account — your Nihoner user ID is linked to the access tokens the AI app uses, and the connector saves the words, quiz answers, review grades and placement results you choose to save, and reads your level, reviews and streak.
We do not receive your conversation, the AI app’s memory or chat history, your files, or anything you did not send to a Nihoner tool. The AI app never receives your Nihoner email address, password or payment details.
How we use and store it
- Dictionary and grammar answers are cached for up to 7 days so they load quickly. These caches contain dictionary data, not information about you.
- Text you paste into the reader is processed and then discarded; it is not stored.
- We keep aggregate usage statistics (which tool was used, whether it succeeded, how long it took, which AI app) with no request content and no account information.
- Access tokens are stored only as one-way hashes. Access tokens expire after 1 hour and refresh tokens after 60 days of non-use.
- Progress you save is stored in your Nihoner account like any other study progress, until you delete it or your account.
- If you create a Nihoner account through the connector, we record that it came from the connector so we can understand how people find us.
Sharing
We do not sell your data or share it for advertising. The connector runs on our own server (Hetzner, in the EU) behind Cloudflare. The AI app you use (Anthropic’s Claude or OpenAI’s ChatGPT) receives the tool results it asked for, under its own privacy policy.
Your choices
- Use the connector without an account — nothing is linked to you.
- Disconnect at any time in the AI app’s connector settings; tokens stop working when they expire, or immediately when we are asked to revoke them.
- To access, export or delete your data, email [email protected] or delete your Nihoner account.
Contact
Nihoner · [email protected] · privacy questions: [email protected]