> For the complete documentation index, see [llms.txt](https://docs.asterdex.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.asterdex.com/trading/spot/usdt-usdc-swap.md).

# USDT-USDC Swap

### Overview

Aster supports instant swaps between USDC, USDC.e, and USDT, allowing users to convert stablecoins directly within their account without using the order book.

The swap feature is designed to simplify stablecoin management and make it easier to move funds between supported settlement assets before trading.

**During the current promotional period (11 May 2026 - 10 June 2026), all swap fees are waived.**

###  Supported Swap Pairs

The following swap directions are supported:

* USDC → USDT
* USDT → USDC
* USDC.e → USDT
* USDT → USDC.e

Note:

* USDC refers to native Ethereum USDC
* USDC.e refers to bridged USDC on Arbitrum

***

### Fees

| Swap Pair     | Standard Fee | Promotional Period |
| ------------- | ------------ | ------------------ |
| USDC → USDT   | 0.1%         | FREE               |
| USDT → USDC   | 0.1%         | FREE               |
| USDC.e → USDT | 0.1%         | FREE               |
| USDT → USDC.e | 0.1%         | FREE               |

### Daily Limits

| Limit Type                | Amount      |
| ------------------------- | ----------- |
| Daily platform-wide limit | 500,000 USD |
| Daily individual limit    | 100,000 USD |

The available swap amount is determined by the lowest of:

* Remaining platform-wide quota
* Remaining personal daily quota
* Available balance in the swap account