↳ Atoms

Privacy

Last updated 28 July 2026.

Atoms is an Obsidian plugin. Your notes are markdown files in your own vault, on your own devices. This page describes the only cases where text leaves your device, and who holds what.

Your vault

Atoms reads your daily notes and writes atom files into one folder you choose. It does not move your files, does not rewrite existing lines in your daily notes, and does not upload your vault anywhere as part of normal use.

Processing captures

Classification uses an Anthropic model, so the text of the captures being processed is sent to Anthropic. There are two cases:

• Your own API key. Requests go directly from your device to Anthropic under your key. We never see them and never receive your key. The key is stored in your operating system's secret storage, not in the plugin's settings file.
• Atoms Plus. Requests go through our service under our Anthropic account so you do not need a key. Capture text passes through our service in order to be classified.

We do not use your notes to train models, and our Anthropic usage is under terms that do not permit training on submitted content.

Ask, if you turn it on

Ask is off by default. When you enable it, Atoms mirrors your flat atoms folder to our service so an assistant such as Claude or ChatGPT can search and cite it through MCP. Specifically:

• Only flat markdown files in your configured atoms folder are mirrored. Daily notes and the rest of your vault are not.
• The mirror is one directional. Note bodies are never written back into your vault from the cloud copy.
• Deleting an atom in your vault removes it from the mirror on the next sync. Turning Ask off and clearing the mirror removes the cloud copy.
• When you use Ask from an assistant, that assistant's provider (Anthropic for Claude, OpenAI for ChatGPT) receives the note content returned to answer your question. That is their surface, under their privacy policy, not ours.

Account and billing

A Plus subscription requires an email address, used to identify your subscription and to send sign in links and billing notices. Payment is handled by Stripe. We do not receive or store your card number.

What we do not do

• No analytics, trackers, or advertising on this website.
• No cookies set by this website.
• No selling or sharing of your notes or your email address.
• No training on your notes.

Deleting your data

Cancel from Settings inside the plugin. To have the cloud mirror and your account record removed, open an issue or contact us through GitHub. Your vault files are yours and are unaffected either way.

Questions

Atoms is an independent project. Reach us through GitHub Issues.