The most common questions, in three groups. Each answer links to the deeper page where you'll find the full story.
About Arkena
What is Arkena?
Arkena is an NFT marketplace, AMM swap, and self-custody wallet built on
the Canton Network. Holders trade NFTs and tokens; creators launch
collections; developers connect their dApps to the Arkena wallet via
window.arkena.
What's it built on?
Canton Network — a privacy-preserving blockchain designed for institutional and retail use. Arkena's marketplace contracts are written in Daml; the wallet, backend, and frontend are TypeScript / Java. See Architecture for the full stack.
Where can I download the wallet?
The Arkena wallet is a Chrome extension. Install it from the Chrome Web Store — see Install the Arkena extension.
Is the wallet self-custodial?
Yes. The keys live on your device only. Arkena's servers cannot move your assets, reset your password, or recover your phrase. See Self-custody on Arkena for the details.
What does it cost to use Arkena?
Network costs (paid in CC) are typically fractions of a cent. Marketplace trades have a small platform fee plus the creator's royalty. Swaps pay a fee to the LP. Connecting the wallet, signing in, viewing, and cancelling are all free. See Fees and pricing for the full breakdown.
Using the wallet
Why does buying an NFT take a few seconds?
Canton settles transactions atomically with multi-party signatures. The flow you see — sign, then settle — is doing real work on a distributed ledger, not posting to a database.
What happens if I lose my recovery phrase?
The wallet is unrecoverable. Your assets stay on the ledger but no one — including Arkena — has the keys to move them. This is the trade-off of self-custody. See Security best practices for the rules that prevent this.
Does Arkena support [chain X]?
Arkena lives entirely on Canton. There are no plans to support other chains.
Building on Arkena
Can I integrate Arkena into my dApp?
Yes. The Arkena wallet exposes window.arkena in any browser tab where
the extension is installed. See Quickstart for
a 10-minute tour.
Is there a Canton-native equivalent of MetaMask Snaps?
Not at this time. The wallet's API surface is fixed and documented; custom plugin support isn't currently planned.
Where's the per-endpoint REST API reference?
The category-level overview is at REST API overview.
Where do I report a bug or contact support?
In Discord — link in the footer of every page. For security-sensitive
reports, email security@arkena.io.