> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sei.io/llms.txt
> Use this file to discover all available pages before exploring further.
# SIP-03 Migration Guide
> Practical steps and resources for users and exchanges migrating during SIP-03, including asset transfer, USDC, and exchange migration guidance.
**Action required: IBC assets on Sei will become inaccessible**
If you hold [USDC.n](https://seiscan.io/address/0x3894085Ef7Ff0f0aeDf52E2A2704928d1Ec074F1) (USDC via Noble), [USDT.kava](https://seiscan.io/address/0xb75d0b03c06a926e488e2659df1a861f860bd3d1) (Kava USDT), Wormhole-bridged tokens, or any other IBC asset on Sei, you **must** swap, migrate, or bridge out **before [Proposal #116](https://www.mintscan.io/sei/proposals/116) (disables inbound IBC transfers) passes and is activated** to avoid permanent loss of access. After this, Sei will no longer support IBC bridging of assets from Cosmos-based chains to and from Sei Network.
Consult the [IBC Asset Migration Table](#ibc-asset-migration-table) below for the full list of affected assets, required actions, and supported routes.
For USDC.n specifically, see: [Holders of USDC.n Need to Swap or Migrate](https://blog.sei.io/announcements/holders-of-usdcn-need-to-swap-or-migrate/).
This page consolidates the most important, practical actions for the SIP-03 migration and links to the official resources.
For the full proposal text, see:
* The [official SIP-03](https://github.com/sei-protocol/sips/blob/main/sips/sip-3.md)
* Governance [Proposal #99](https://www.mintscan.io/sei/proposals/99) — initiated the migration
* Governance [Proposal #115](https://www.mintscan.io/sei/proposals/115) — disables CosmWasm code uploads and contract instantiations. After this passes, no new CosmWasm contracts can be deployed on Sei.
* Governance [Proposal #116](https://www.mintscan.io/sei/proposals/116) — disables inbound IBC transfers. After this passes and is activated, IBC assets bridged from Cosmos chains can no longer arrive on Sei.
## What most users need to do
* If you use Keplr or Leap (Cosmos-style wallets) and hold assets on the native address (sei1...), you should move assets to an EVM-compatible address (0x...). Use the Asset Transfer tool linked below.
* If you use Compass or another EVM wallet already, you’re good — continue as normal.
## IBC Asset Migration Table
If you hold any of the following IBC assets on Sei, take action before [Proposal #116](https://www.mintscan.io/sei/proposals/116) (disables inbound IBC transfers) passes and is activated.
\[We’ll update this table as more resources are made available]
| Asset | Token contract | Action(s) | Possible route(s) | Support |
| :------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :-------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **USDC.n (USDC via Noble)** | [seiscan](https://seiscan.io/address/0x3894085ef7ff0f0aedf52e2a2704928d1ec074f1) [mintscan](https://www.mintscan.io/sei/assets/ibc%2FCA6FBFAF399474A06263E10D0CE5AEBBE15189D6D4B2DD9ADE61007E68EB9DB0) | Swap to native USDC or migrate via CCTP | [Saphyre](https://saphyre.xyz/swap?inputCurrency=0x3894085Ef7Ff0f0aeDf52E2A2704928d1Ec074F1\&outputCurrency=0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392), [Symphony](https://symph.ag/), or [CCTP Exchange](https://cctp.exchange/) | [Sei blog](https://blog.sei.io/announcements/holders-of-usdcn-need-to-swap-or-migrate/) [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei?ref=blog.sei.io) |
| **USDT.kava (USDT via Kava)** | [seiscan](https://seiscan.io/token/0xb75d0b03c06a926e488e2659df1a861f860bd3d1) [mintscan](https://www.mintscan.io/sei/assets/ibc%2F6C00E4AA0CC7618370F81F7378638AE6C48EFF8C9203CE1C2357012B440EBDB7) | Swap to a native asset via Symphony | [Symphony](https://symph.ag/) | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **USDCso (Wormhole, Solana)** | [mintscan](https://www.mintscan.io/sei/assets/factory%2Fsei189adguawugk3e55zn63z8r9ll29xrjwca636ra7v7gxuzn98sxyqwzt47l%2F9fELvUhFo6yWL34ZaLgPbCPzdk9MD1tAzMycgH45qShH) | Bridge out to Solana via Wormhole | [Portal Bridge (legacy)](https://legacy.portalbridge.com/#/transfer) | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **Wormhole-bridged WETH** | [mintscan](https://www.mintscan.io/sei/assets/factory%2Fsei189adguawugk3e55zn63z8r9ll29xrjwca636ra7v7gxuzn98sxyqwzt47l%2F4tLQqCLaoKKfNFuPjA9o39YbKUwhR1F8N29Tz3hEbfP2) | Bridge out to Ethereum via Wormhole | [Portal Bridge (legacy)](https://legacy.portalbridge.com/#/transfer) | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **USDCet (Wormhole, Ethereum)** | [mintscan](https://www.mintscan.io/sei/assets/factory%2Fsei189adguawugk3e55zn63z8r9ll29xrjwca636ra7v7gxuzn98sxyqwzt47l%2FHq4tuDzhRBnxw3tFA5n6M52NVMVcC19XggbyDiJKCD6H) | Bridge out to Ethereum via Wormhole | [Portal Bridge (legacy)](https://legacy.portalbridge.com/#/transfer) | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **USDCop (Wormhole, Optimism)** | [mintscan](https://www.mintscan.io/sei/assets/factory%2Fsei189adguawugk3e55zn63z8r9ll29xrjwca636ra7v7gxuzn98sxyqwzt47l%2F3VKKYtbQ9iq8f9CaZfgR6Cr3TUj6ypXPAn6kco6wjcAu) | Bridge out to Optimism via Wormhole | [Portal Bridge (legacy)](https://legacy.portalbridge.com/#/transfer) | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **USDTbs (Wormhole, BSC Chain)** | [mintscan](https://www.mintscan.io/sei/assets/factory%2Fsei189adguawugk3e55zn63z8r9ll29xrjwca636ra7v7gxuzn98sxyqwzt47l%2F871jbn9unTavWsAe83f2Ma9GJWSv6BKsyWYLiQ6z3Pva) | Bridge out to BSC Chain via Wormhole | [Portal Bridge (legacy)](https://legacy.portalbridge.com/#/transfer) | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **ATOM** | [mintscan](https://www.mintscan.io/sei/assets/ibc%2FC4CFF46FD6DE35CA4CF4CE031E643C8FDC9BA4B99AE598E9B0ED98FE3A2319F9) | Bridge out to Cosmos Hub | Skip:Go | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
| **WBTC** | [mintscan](https://www.mintscan.io/sei/assets/factory%2Fsei189adguawugk3e55zn63z8r9ll29xrjwca636ra7v7gxuzn98sxyqwzt47l%2F7omXa4gryZ5NiBmLep7JsTtTtANCVKXwT9vbN91aS1br) | Bridge out to origin chain | Skip:Go | [Sei Tech Chat](https://t.me/+KZdhZ1eE-G01NmZk) [Discord](https://discord.com/invite/sei) |
The mention of third-party platforms does not constitute an endorsement. Users should do their own research before using any third-party service.
## Key tools and resources
### 1) Asset Transfer (Native ↔ EVM)
* Use the official Sei Dashboard to move assets between native (Keplr/Leap/Fin) and EVM (MetaMask/Compass etc.) addresses: [Sei Dashboard Transfer](https://dashboard.sei.io/evm-upgrade) or the Bridge tab at [Sei Dashboard Bridge](https://dashboard.sei.io/bridge).
When to use this:
* You used Keplr or Leap before and want assets available via an EVM wallet going forward.
* You need to access tokens on apps that now expect an EVM (0x) address.
### 2) USDC on Sei
Native USDC and Circle's CCTP V2 are now supported on Sei. USDC from Noble (USDC.n) is deprecated.
* QuickStart: [USDC on Sei](/evm/usdc-on-sei)
* Background: [USDC & CCTP v2 announcement](https://www.circle.com/blog/native-usdc-and-cctp-v2-are-coming-to-sei)
#### How to swap or migrate USDC.n
**Swap (smaller amounts):**
* [DragonSwap](https://dragonswap.app/) or [Symphony](https://symph.ag/?tokenIn=0x3894085ef7ff0f0aedf52e2a2704928d1ec074f1\&tokenOut=0xe15fc38f6d8c56af07bbcbe3baf5708a2bf42392) — slippage may vary depending on market conditions and liquidity.
**Migrate (larger amounts):**
USDC.n reached Sei over IBC from Noble, so larger balances are best migrated to native USDC by routing back through Noble — this avoids the slippage of a direct DEX swap.
* IBC-transfer your USDC.n from Sei back to Noble, where it becomes native Noble USDC, then use Circle's CCTP to mint native USDC on Sei. [CCTP Exchange](https://cctp.exchange/) is a useful frontend for the CCTP leg.
Complete this **before** the SIP-03 upgrade, while IBC routing through Noble is still available.
**For DeFi suppliers of USDC.n (Yei, Takara Lend, etc.):**
* Wind down and withdraw your positions **before** migrating to native USDC. Failure to do so before the SIP-03 upgrade may result in inability to access your supplied assets.
### 3) Address Association (Seistream)
[Seistream's SIP-03 migration page](https://seistream.app/migrate-sip03) links your EVM (`0x...`) and Cosmos (`sei1...`) addresses for the **native SEI token** in three guided steps. It is a community-built tool that streamlines the standard association flow.
Address association is the one-time, on-chain step that links your `0x...` and `sei1...` addresses so a single key controls both. It must be completed **before** the SIP-03 upgrade — afterward, Cosmos (`sei1...`) interfaces stop working and addresses can no longer be associated. See [Account Linking](/learn/accounts) for how association works under the hood.
What the tool does:
1. **Connect wallet** — connect any EVM wallet with an injected provider (MetaMask, Keplr, Rabby, Compass, Tangem, Trust Wallet, OKX, and most others).
2. **Gas + association** — cover the small amount of SEI needed for gas (Seistream provides a mainnet faucet to help), then submit the transaction that associates your `0x...` and `sei1...` addresses on-chain. Any outgoing EVM transaction registers the link automatically.
3. **Transfer from Cosmos** — send your existing native SEI from the old Cosmos wallet to the linked `sei1...` address, where it becomes spendable from your EVM wallet.
This is a streamlined alternative to the manual association flow in [Migrating a hardware or mnemonic-only wallet](#migrating-a-hardware-or-mnemonic-only-wallet).
Seistream handles association for the **native SEI token only**. For USDC, USDT, ATOM, WBTC, and other IBC-bridged assets, use the [IBC Asset Migration Table](#ibc-asset-migration-table). Seistream is a third-party tool; its inclusion here is not an endorsement, and you should do your own research before connecting a wallet.
## Migrating a hardware or mnemonic-only wallet
If your wallet can export a raw private key, the simplest path is to import that key into an EVM wallet. A private key is independent of coin type, so it reproduces the same `0x...` and `sei1...` addresses in any wallet, and no funds need to move.
If your wallet cannot export a private key, you can still migrate by moving your funds to a new EVM-native account, as described below.
### When private-key export isn't an option
A raw private key always works, but two common setups do not provide one:
* **Mnemonic-only wallets.** Some wallets back up only a recovery phrase, not a raw private key. Sei's Cosmos (`sei1...`) accounts use coin type 118 (`m/44'/118'/0'/0/0`). Importing the same phrase into an EVM wallet such as MetaMask derives it on coin type 60 (`m/44'/60'/0'/0/0`), producing a different account with no access to the original funds. The underlying private key would import correctly if the wallet exposed it, but a mnemonic-only wallet does not.
* **Hardware wallets (such as Ledger).** A Ledger does not export the private key or seed under any circumstances. It only allows switching between the Cosmos app (coin type 118) and the Ethereum app (coin type 60), which control separate accounts with different addresses. The Cosmos-app account cannot be used from an EVM wallet.
For background, see [HD Paths and Coin Types](/learn/accounts#hd-paths-and-coin-types).
### Migration steps
This works because every account has exactly one EVM (`0x...`) address and one Cosmos (`sei1...`) address, both derived from the same key. Funds sent to the new account's `sei1...` address are therefore spendable from the EVM wallet that holds its `0x...` address.
Prefer a guided flow? [Seistream's SIP-03 migration tool](https://seistream.app/migrate-sip03) walks through these same steps — connect an EVM wallet, cover gas, associate addresses, then transfer native SEI from the Cosmos side. See [Address Association (Seistream)](#3-address-association-seistream). It covers native SEI only; the manual steps below work for any wallet you control.
Use MetaMask, Compass, Rabby, or a Ledger running its Ethereum app. This produces a new `0x...` address.
Roughly 0.1 SEI is sufficient. Association is an on-chain transaction, so the account requires SEI for gas. Fund it from an exchange withdrawal or from any EVM wallet that already holds SEI.
Connect the new EVM account to the [Sei Dashboard](https://dashboard.sei.io) and complete address association. This records the public key on-chain and links the `0x...` address to its `sei1...` counterpart. The dashboard then displays the linked `sei1...` address, which is the destination for the next step. See [Account Linking](/learn/accounts) for details on association.
From the original Cosmos wallet (Keplr, Leap, the Ledger Cosmos app, and so on), send 1 SEI to the `sei1...` address from step 3. This is a standard Cosmos-to-Cosmos transfer.
Because the addresses are associated, the test amount should appear under the new account on the dashboard and as a spendable balance in the EVM wallet.
Once the test transfer is confirmed, send the rest of the funds the same way. The assets are then held by an account whose key you control from an EVM wallet.
Send the 1 SEI test transfer and confirm receipt before moving the full balance. Verify that the destination matches the exact `sei1...` address shown after association in step 3.
### Notes and limitations
* **Complete this before the SIP-03 upgrade.** After the Cosmos interface is deprecated, addresses can no longer be associated and `sei1...` transfers can no longer be broadcast. Steps 3 and 4 must be completed beforehand.
* **This procedure moves liquid balances only.** Staked SEI must be unbonded first, and the unbonding period is 21 days. See the staking question in the [FAQ](#faq).
* **Associate before sending.** Associating the new account before transferring ensures the funds arrive at the correct, immediately spendable address rather than a temporary holding address.
* **Optional verification.** To confirm the paired `sei1...` address independently, call `getSeiAddr(0x...)` on the `addr` precompile. See [Query Linked Addresses](/learn/accounts#query-linked-addresses).
## FAQ
### I am a Keplr / Leap wallet user; do I need to do anything?
Yes. Use the Asset Transfer tool to ensure your assets are available via an EVM wallet. See Asset Transfer above.
### I use Compass wallet; do I need to do anything?
No action needed. Compass ensures your assets are available via EVM. Continue connecting to Sei like any EVM chain.
### My wallet only shows a recovery phrase, or I use a Ledger — how do I migrate?
If you can export a raw private key, import it into an EVM wallet. This always works, because the key reproduces the same addresses in any wallet. If you cannot (a wallet that exports only a recovery phrase, or a Ledger that only switches between apps), create a new account in an EVM wallet you control, fund it with a small amount of SEI, associate it to reveal its paired `sei1...` address, and send your existing Cosmos funds to that address. Send a 1 SEI test transfer first. See [Migrating a hardware or mnemonic-only wallet](#migrating-a-hardware-or-mnemonic-only-wallet) for the full procedure.
### I stake SEI — do I need to do anything?
It depends on whether your Cosmos (`sei1...`) and EVM (`0x...`) addresses are **associated (linked)**. Staking on Sei is handled by the Cosmos staking module. After SIP-03, Cosmos-native transaction interfaces will no longer be available — but the underlying staking state is preserved and accessible via EVM for associated addresses.
**If your addresses are associated:** No action is needed. After the upgrade, your existing delegations, rewards, and unbonding state will be fully accessible via EVM. You can continue managing your stake through an EVM wallet using the [Staking Precompile](/evm/precompiles/staking) or the [Sei Dashboard](https://dashboard.sei.io/stake).
**If your addresses are NOT associated:** You must act before the upgrade. After SIP-03, you will not be able to associate addresses or manage delegations through a Cosmos wallet.
Your options:
1. **Associate your addresses** before the upgrade. You can do this by connecting your Cosmos wallet on the [Sei Dashboard](https://dashboard.sei.io) or by using any of the methods described in [Accounts](/learn/accounts). Once associated, your staking state becomes accessible via EVM — no need to unbond.
2. **Unbond your stake** and migrate assets to an EVM wallet using the [Asset Transfer tool](https://dashboard.sei.io/evm-upgrade). **The unbonding period is 21 days**, so you must begin this process at least 21 days before the Cosmos shutdown to ensure your tokens are liquid in time.
To check whether your addresses are linked, see [Query Linked Addresses](/learn/accounts#query-linked-addresses).
**Do not confuse address linking with staking migration.** Even though `sei1...` and `0x...` addresses point to the same underlying account once associated, the chain can only recognize this link after explicit association. Without association, your staked SEI will not be accessible via EVM after the upgrade, and you will have no way to unbond or claim rewards.
### I hold USDC.n (USDC via Noble) — what should I do?
You must swap or migrate your USDC.n to native USDC before the SIP-03 deprecation of Cosmos, CosmWasm and IBC related functionality, slated for **June 15, 2026**. After the upgrade, USDC.n may become inaccessible or lose its value on Sei. See the [USDC on Sei](#2-usdc-on-sei) section above for swap and migration options, or read the full announcement: [Holders of USDC.n Need to Swap or Migrate](https://blog.sei.io/announcements/holders-of-usdcn-need-to-swap-or-migrate/).