The companies you know. The value you own. Put your portfolio to work without selling it.
Up to 800 PLN sign-up bonus
Scan to get the Castar app
APP.CASTAR.TECH
Up to 800 PLN sign-up bonus
Top U.S. equities, tokenized end-to-end, if you own it, Castar can verify it and put it to work.
See What You're
Missing Out On
Spend against your portfolio without selling it. Add a Castar card to your wallet in minutes, collateralized by your assets, settled instantly.
CARDS
Three tiers, zero platform fees. Start light, or go metal. Your assets keep earning either way.
Start owning with Castar
Terms apply. Yield illustrative, not guaranteed.
Built for everyday spending
Terms apply. Yield illustrative, not guaranteed.
For serious owners
Terms apply. Yield illustrative, not guaranteed.
Prove what you own, and turn it into liquidity you can borrow, earn and spend without ever selling.
Connect your holdings and prove ownership on-chain in seconds.
Borrow against your portfolio and keep the upside without selling.
Idle balances earn yield automatically.
A Visa card backed by what you own, in 180+ countries.
Withdraw to a bank or wallet anytime. Your keys, your assets.
Regulated custody, independent audits, and compliance built in.
FAQ
Everything you need to know about Castar
No. Castar is a financial technology platform, not a bank. It lets you verify ownership of tokenized real-world assets you already hold and put them to work: hold, borrow against, earn on and spend them.
Your assets stay yours. Castar verifies on-chain ownership of the tokenized assets in your own wallet. You remain in control of what you hold rather than handing custody to us.
Borrowing against your assets is not the same as selling them, so it generally isn’t a disposal. This is general information, not tax advice. Check your own situation with a qualified adviser.
You get early warnings well before any risk of liquidation, with time to top up collateral or repay part of what you’ve borrowed. Managing your buffer keeps your positions safe.
Top U.S. equities, tokenized end-to-end, plus major tokens across the leading chains. The supported list keeps growing as we add coverage.
Anywhere Visa is accepted, across 180+ countries, online and in-store. Spend against your portfolio without selling it.
Yes. Your Castar card adds to Apple Pay and Google Pay in seconds, so you can tap to pay straight from your phone or watch.
Your virtual card is ready instantly and ready to spend. The physical Castar Aura card ships within a few business days.
You earn cashback on eligible spend, credited to your Castar balance automatically. There’s nothing to claim. Rewards just show up.
Idle balances can earn from selected tokenized asset classes, illustratively up to ~32% a year. That figure is illustrative, not guaranteed, and past performance is no promise of future returns.
There are 0% platform fees to hold and move your assets inside Castar. Standard network fees may apply when you move value outside the Castar layer.
Yes. You can withdraw to your bank or wallet whenever you like, subject to the usual settlement windows.
Freeze your card instantly in-app and reach real people 24/7 if you need help. Unauthorized charges are covered, and support is available across the 180+ countries we serve, with features varying by local regulation.
