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

# Aesir

**Aesir** is the official Kryptokrona desktop wallet. It's a cross‑platform app (Windows, macOS, Linux) for managing your **XKR**, and it's the first wallet with built‑in, trustless **Bitcoin ⇄ XKR atomic swaps** — swap between BTC and XKR peer‑to‑peer, with no exchange, custodian, or wrapped tokens.

![The Aesir dashboard — balance, recent activity, price chart](https://2858262040-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fx7WCorBnqCP2oVt16bNf%2Fuploads%2Fgit-blob-333dcfe8d45ae478eb90c960c5f76f2cc23d4989%2Fdashboard.png?alt=media)

## Features

* **Send & receive XKR** with a clean, modern interface.
* **BTC ⇄ XKR atomic swaps** — buy or sell XKR for real Bitcoin directly from the wallet. See [Atomic Swaps](/wallets/aesir/swaps.md).
* **Address book / contacts** for people you transact with often.
* **Fiat values** — see the USD (or your chosen currency) value of your XKR and BTC.
* **Node picker** — connect to any Kryptokrona node, or use the built‑in list.
* **Themes** and a few other quality‑of‑life touches.
* **Seed‑based** — your whole wallet, including the Bitcoin side used for swaps, is derived from your XKR wallet seed. Back up your seed and you've backed up everything.

## Download

Grab the latest build for your platform from the releases page:

**➡️** [**Download the latest Aesir release**](https://github.com/kryptokrona/aesir-wallet/releases/latest)

| Platform                  | File to download                        |
| ------------------------- | --------------------------------------- |
| **Windows**               | `Aesir Setup <version>.exe` (installer) |
| **macOS** (Apple Silicon) | `Aesir-<version>-arm64.dmg`             |
| **macOS** (Intel)         | `Aesir-<version>.dmg`                   |
| **Linux**                 | `Aesir-<version>.deb`                   |

> **macOS:** the app is code‑signed and notarized by Apple, so it opens normally.
>
> **Windows:** if SmartScreen warns about an unknown publisher on first run, choose **More info → Run anyway**. (Signed Windows builds are on the roadmap.)

## Getting started

1. Install and open Aesir.
2. **Create a new wallet** (or **import** an existing one with your seed).
3. **Write down your recovery seed** and store it offline — it's the only way to restore your funds.
4. Let the wallet sync with a node, and you're ready to send, receive, and swap.

![The create / import wallet screen](https://2858262040-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fx7WCorBnqCP2oVt16bNf%2Fuploads%2Fgit-blob-b294c04a6269998085720461e71572c8123ef9d6%2Fcreate-wallet.png?alt=media)

## Next steps

* [**Atomic Swaps (BTC ⇄ XKR)**](/wallets/aesir/swaps.md) — the headline feature: how it works, and step‑by‑step guides for both buying XKR with BTC (taker) and market‑making (maker).