> For the complete documentation index, see [llms.txt](https://docs.yei.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yei.finance/guides/asset-guides/asset-guide-usdc/usdc-migration-guide.md).

# USDC Migration Guide

## Overview

On Sei Mainnet, there are currently **two types of USDC**:

* **USDC.n**: The IBC-enabled version of USDC, issued by Circle on the Noble chain and bridged to Cosmos-based chains like Sei.
* **USDC**: Native USDC on Sei is the official version of USDC directly issued by Circle to Sei via CCTP

Both are usable today, but **USDC is becoming the new standard** across the Sei DeFi ecosystem.

***

## Understanding the difference

| Feature              | USDC                                         | USDC.n                       |
| -------------------- | -------------------------------------------- | ---------------------------- |
| Origin               | Native USDC on Sei                           | Bridge from Noble            |
| Bridging Method      | Circle CCTP                                  | IBC                          |
| Cross-Chain Support  | Native CCTP support (Ethereum, Solana, etc.) | Limited to Cosmos IBC chains |
| Ecosystem Preference | Preferred                                    | Deprecated                   |

***

## Why migrate to USDC?

Protocols on Sei (including Yei Finance) are adopting **USDC** as the primary stablecoin for the following reasons:

* USDC is issued directly by Circle, ensuring official backing and credibility.
* USDC supports native cross-chain transfers via Circle’s CCTP.
* It has stronger oracle, analytics, and developer tooling support.
* Integrating USDC into DeFi protocols is simpler and safer.

**USDC** will be the default stablecoin on Sei, offering better native liquidity and security. As Sei transitions to EVM-only, **USDC.n will no longer be supported.**

***

## How to migrate?

You can migrate to native USDC using the following three methods:

<details>

<summary><strong>Method 1 – YeiBridge</strong><br><sub><strong>Suitable for most users. Convenient and secure, but users should watch for bridge caps and fees.</strong></sub></summary>

{% hint style="info" %}
YeiBridge also integrates with the third-party bridge Stargate. Be sure to check caps and fees before bridging.
{% endhint %}

* **Use YeiBridge to migrate.**

  * Visit [YeiBridge](https://app.yei.finance/bridge/) to send your USDC.n to another chain (such as Avalanche, Arbitrum) as USDC.

  <figure><img src="/files/eTtaIYzgSE3l13eeGkx1" alt="" width="563"><figcaption></figcaption></figure>

  * Then bridge the USDC back to Sei as native USDC.

  <figure><img src="/files/vwlSiI6J08HdTqjPqnAH" alt="" width="563"><figcaption></figcaption></figure>

  * If you don’t see native USDC in your wallet, you can add the Sei USDC token address [here](https://app.yei.finance/reserve-overview/?underlyingAsset=0xe15fc38f6d8c56af07bbcbe3baf5708a2bf42392\&marketName=sei_mainnet_1) and click “**Add token to wallet**,” then select USDC.

    <figure><img src="/files/BX9XEFEYigacQ8v8ZEew" alt=""><figcaption></figcaption></figure>

{% hint style="warning" %}
Make sure you have enough assets (such as AVAX or ETH) on the destination chain to cover transaction fees to bridge back.&#x20;
{% endhint %}

</details>

<details>

<summary><strong>Method 2 – CCTP via Skip:Go Bridge</strong><br><sub><strong>Suitable for large transfers to avoid slippage, but requires more steps and may take longer.</strong></sub></summary>

{% hint style="info" %}
This method is better for large amounts, offering zero slippage from Sei back to Noble (as of July 24, 2025).\
It leverages CCTP but requires additional setup, such as configuring a Keplr wallet.
{% endhint %}

* **Use CCTP via Skip:Go Bridge to migrate.**
  * **Transfer USDC onto your Keplr wallet.**
    * **Option 1:** Send USDC.n from your **Sei EVM wallet** to your **Keplr wallet.**

      * Go to <https://app.sei.io/> and link your Cosmos wallet to retrieve your EVM address.

      <figure><img src="/files/qYoHdIBjpsrcRMeQ1iwa" alt="" width="563"><figcaption></figcaption></figure>

      <figure><img src="/files/2ls4oHZ9xdZLekhWfbGO" alt="" width="563"><figcaption></figcaption></figure>

      <figure><img src="/files/6S0BPYuDooKUObxmLVAC" alt="" width="563"><figcaption></figcaption></figure>
    * **Option 2: Import the private key from your Sei EVM wallet into Keplr wallet.**
  * **Navigate to Skip:Go Bridge.**

    * Visit [Skip:Go Bridge](https://go.skip.build/), and bridge USDC.n from Sei-EVM to your desired EVM chain. Make sure the bridge cross through Noble before confirming the transaction to avoid slippage.

    <figure><img src="/files/qaFi6wEhQT3M3bfFfRJV" alt="" width="416"><figcaption></figcaption></figure>

    <figure><img src="/files/5SL2M8DtwHmiq6JcOCvi" alt="" width="369"><figcaption></figcaption></figure>

    * Wait for the bridge to complete and confirm USDC in your wallet.
  * Bridge native USDC back.&#x20;

    * Visit [YeiBridge](https://app.yei.finance/bridge/)to bridge native USDC back to Sei.

    <figure><img src="/files/pD8RlalmdH0rvQ0oVaBy" alt="" width="524"><figcaption></figcaption></figure>

{% hint style="warning" %}
Make sure you have enough assets (such as AVAX or ETH) on the destination chain to cover transaction fees to bridge back.&#x20;
{% endhint %}

</details>

<details>

<summary><strong>Method 3 - YeiSwap</strong><br><sub><strong>Fastest method. Ideal for smaller amounts. Be aware of potential slippage.</strong></sub></summary>

{% hint style="info" %}
Make sure to have Sei token in your wallet to pay for the transaction.
{% endhint %}

* **Swap on YeiSwap.**
  * Visit [YeiSwap](https://swap.yei.finance/) to convert assets into USDC directly on Sei.

<figure><img src="/files/M1VTorR3taLJHdzF15US" alt="" width="523"><figcaption></figcaption></figure>

</details>

For details about native USDC, please refer to our asset guide: [Asset Guide - USDC](/guides/asset-guides/asset-guide-usdc.md)

***

## Frequently Asked Questions

### **Q: Do I have to migrate?**

A: Migration is strongly recommended. As Sei transitions to an EVM-only architecture, USDC.n will have fewer use cases and reduced support across the ecosystem. Yei Finance will disable deposits and borrowing for USDC.n after **Sep 1, 2025**.

### **Q: Is USDC.n going away?**

A: Once Sei completes the SIP-3 transition, Cosmos-native assets will no longer be supported. For more details, see: [https://blog.sei.io/sip-3-update-sei-moves-toward-evm-only-architecture](https://blog.sei.io/sip-3-update-sei-moves-toward-evm-only-architecture/?utm_source=chatgpt.com).<br>

***

## Summary

USDC is the official stablecoin standard on Sei.

Migrating ensures access to better DeFi opportunities, seamless cross-chain transfers, and long-term ecosystem support.