> For the complete documentation index, see [llms.txt](https://docs.termius.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.termius.com/keychain.md).

# Keychain

- [SSH keys and certificates](https://docs.termius.com/keychain/ssh-keys-and-certificates.md): This page describes how to manage SSH keys and certificates in Termius, including FIDO2 hardware keys and biometric keys.
- [Identities](https://docs.termius.com/keychain/identities.md): This page explains what identities are in Termius and how to use them to reuse credentials across Hosts and Groups.
- [Sync of keys and passwords](https://docs.termius.com/keychain/sync-of-keys-and-passwords.md): This page explains how keychain synchronization differs from other data sync and how to keep your credentials stored locally while syncing the rest of your Vault data.


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.termius.com/keychain.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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