Import a Wallet

If you already have a Tezos seed phrase, you can restore it into TezosX Wallet. The import flow validates the mnemonic, encrypts it locally, and derives your Tezos identity.

Supported mnemonic lengths

BIP-39 mnemonics of 12, 15, 18, 21, or 24 words are accepted. All words must be from the English BIP-39 wordlist.

Steps

1. Open the extension popup
2. On the Welcome screen, click Import an existing seed
3. Paste your mnemonic into the text area (words separated by spaces)
4. Enter a new local password (minimum 8 characters)
5. Confirm the password
6. Click Import wallet

The wallet validates your mnemonic before proceeding. If any word is invalid or the checksum fails, an error is shown inline.

What happens internally

mnemonic  ──isValidMnemonic()──►  validated
password  ──PBKDF2-SHA256──►  derivedKey
mnemonic  ──AES-256-GCM──►  ciphertext  ──►  chrome.storage.local
mnemonic  ──BIP-39 seed──►  SLIP-10 ed25519 (m/44'/1729'/0'/0')
                         ──►  { tz1, publicKey, secretKey }  (in memory only)

The validation uses @scure/bip39's validateMnemonic(mnemonic, wordlist). The derivation path is m/44'/1729'/0'/0' — the standard Tezos account path (BIP-44 coin type 1729).

Derived addresses

After import you will see two addresses on the Home screen:

Address	Format	Purpose
tz1…	Base58Check, 36 chars	Michelson runtime — used for signing operations
EVM alias	0x… hex, 42 chars	Tezos X EVM runtime — shown to dApps as eth_accounts

The EVM alias is derived deterministically from your tz1 address via the Tezlink tez_getTezosEthereumAddress RPC call. It is not a separate key — it is a representation of the same underlying ed25519 key pair on the EVM runtime side.

Password scope

The password you set during import is specific to this device. It protects the locally encrypted vault. It is not your Tezos wallet password (if you had one) and is not stored anywhere.

You can set a different password than the one you used on another device — only the seed phrase must match.

Changing your password

v0.1.0 does not include a password-change flow. To change your password, use Import an existing seed again (export your seed phrase first from Settings if needed).