How to swap EOS to A: the safe, step-by-step way

6 min read

Do you even need to swap?

Before you open any swap page, figure out where your EOS actually lives. The answer decides everything.

• On Binance, Kraken, KuCoin, MEXC, OKX, Bitvavo, BitMart or Binance.US: these exchanges converted balances to A themselves in 2025. Log in and you should see A (often labelled “Vaulta”). Nothing to do.
• In a self-custody wallet (Anchor, TokenPocket, imToken, a Ledger used via Anchor): your EOS is still EOS until you swap it. Follow the steps below.
• On Coinbase or another exchange that delisted EOS: read the section on stuck exchange balances further down.
• In Exodus: Exodus does not support A and planned to end EOS support in August 2026. It points users to Anchor to swap.

Not sure? Look up your account name in a block explorer. It will show separate balances for EOS (contract eosio.token) and A (contract core.vaulta).

What you need before you start

• Access to the account holding EOS. That means the wallet app or private key that controls your 12-character account name.
• A wallet that can sign on Vaulta. Anchor is the wallet the foundation points to and is actively maintained. imToken has its own published swap guide. Our Anchor wallet review covers setup.
• A little CPU and NET. The swap is a normal transaction. Anchor usually covers this for you; otherwise a tiny PowerUp handles it. More on this in our RAM, CPU and NET guide.
• About 241 bytes of RAM for your first A balance row. Again, wallets normally take care of it.

How to swap EOS to A with the official portal

This is the route most people should use. It takes about five minutes.

1. Check where your EOS is

   Log in to your exchange or wallet. If you already see A instead of EOS, the platform swapped for you and you can stop here.

2. Open a wallet that supports Vaulta

   Install or open Anchor (browser, desktop or mobile) and import or create the account that holds your EOS. If you use imToken, its own guide routes you to the same Unicove page.

3. Go to the official swap page

   Type swap.vaulta.com into the address bar yourself. It forwards to the Unicove swap interface. Avoid search ads and links from social media.

4. Connect your wallet

   Click to connect or log in, choose Anchor (or your wallet) and approve the login request.

5. Enter the amount and swap

   Type how much EOS to convert. The page shows exactly the same amount of A you’ll receive. Leave a small amount of EOS only if you have a reason to.

6. Sign the transaction

   Your wallet will show a transfer of EOS to core.vaulta. That is correct. Approve it.

7. Verify the result

   Within about a second your A balance appears. Double-check it in Unicove or EOS Authority. Bloks.io no longer serves this network, so don’t use it.

The advanced route: sending EOS to core.vaulta

Under the hood, the portal does something very simple: it calls a standard eosio.token transfer that sends your EOS to the core.vaulta account. The contract then issues the same amount of A back to the sender. Developers and people using command-line tools can do this directly.

Two cautions. First, double-check the recipient spelling — core.vaulta, nothing else. Second, the contract lets some accounts block incoming swap transfers; several exchange hot wallets are on that “blocked” list. That is one more reason never to try to swap by sending EOS from or to an exchange address. Swap in your own wallet, then deposit the A.

Swapping EOS held on a Ledger

Ledger owners don’t need to move funds to a hot wallet first. The supported route is Anchor Desktop with the Ledger “EOS” app installed on the device: Anchor reads the account from your Ledger, and every transaction — including the swap — has to be confirmed on the device’s screen. Greymass publishes support articles on connecting a Ledger to Anchor and on creating an account with a Ledger device.

The flow is otherwise identical: open the swap page, log in with Anchor Desktop, enter the amount and approve on the Ledger. Check that the device shows a transfer to core.vaulta before you press confirm. Note that Anchor’s mobile app has historically not supported Ledger, so use the desktop version. Whether Ledger Live itself shows A balances natively is something we couldn’t confirm; your tokens are safe on-chain either way, and an explorer shows the real balance.

What exchanges did (and didn’t) do

Most holders never touched the swap themselves, because their exchange handled it. Here is how the big names handled it:

OANDA Crypto, CoinJar and Coinpass also delisted EOS without swapping. For a fuller list of where A trades now, see our EOS exchanges guide.

If your EOS is stuck on an exchange that delisted it

This is the most stressful situation, and it mainly affects Coinbase users in the US and UK. Coinbase told users on swap day to swap through a self-custody wallet themselves, and later delisted EOS. What to do:

1. Read the platform’s delisting notice and check your account for any withdrawal option.
2. If you can withdraw EOS, set up an EOS account in Anchor first, then withdraw to it — including a memo only if the wallet requires one.
3. Swap to A using the steps above.
4. If withdrawal is not possible, contact the platform’s support in writing and keep copies of everything.

Don’t send old EOS to an exchange that has already completed its migration, such as MEXC; it may not credit it. Swap first, then deposit A.

After the swap: what changes for you

Day to day, very little. Your account name, keys and permissions are the same. A works for everything EOS did: renting CPU and NET, buying RAM, staking and voting all run in A through core.vaulta, which wraps the original system contract. Staked EOS stayed staked through the transition, and since the 2025 system-contract updates, staking rewards are paid in A. If you stake, our staking guide explains REX and the 21-day unstake period.

One quirk worth knowing: some API responses and older tools still report balances in EOS because the system contract keeps its internal accounting in EOS. If a tool shows your “core balance” as zero after the swap, check the A balance specifically.

Common swap mistakes

• Searching “EOS” on an exchange and assuming the asset is gone. Search “Vaulta” or “A”.
• Using bloks.io. It now redirects to a different network. Use Unicove or EOS Authority.
• Depositing old EOS to an exchange that only supports A. Swap first.
• Trusting “swap bonus” offers. There is no official bonus; the rate is 1:1, full stop.
• Waiting out of fear of a deadline. There isn’t one, so there’s no need to rush.

Background on the whole rebrand is on our EOS to Vaulta page, and if you’re choosing a wallet to hold A long-term, start with the EOS wallet guide.

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