> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aultblockchain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# USDC.e & Token Transfers

> Understand bridged assets and how funds move between Ault EVM, Spot, Perpetuals, and Margin Trading.

USDC.e is USDC bridged to Ault through [Stargate](https://stargate.finance/).

## Follow the asset path

```text theme={null}
External chain -> bridge -> Ault EVM -> Core transfer -> Ault Core trading
External chain <- bridge <- Ault EVM <- Core transfer <- trading proceeds
```

[Bring Assets to Ault](https://docs.aultblockchain.com/user-guide/bring-assets-to-ault.md) covers the bridge step. EVM to Core is a representation change within Ault, separate from bridging between chains.

## Where your funds are held

Spot trades use your Ault Core wallet balance. Perpetuals and Margin Trading (both Testnet-Only) each use their own accounts, separate from Spot and from each other. Funds in your Spot balance cannot back a Perpetual position or a Margin order until you transfer them to that product. To move funds between Perpetuals and Margin Trading, transfer them back to your Spot balance first. Unified account support is planned for a future release.

![Funds move from Ault EVM to the Spot balance on Ault Core with transferToCore. From Spot, funds are transferred to Perpetuals or Margin Trading and back, and there is no direct transfer between those two products.](https://mintcdn.com/aultblockchain-55b9b2fe/HkCwFTCXp-fEY8N1/images/ault-dex-fund-flow.svg?fit=max\&auto=format\&n=HkCwFTCXp-fEY8N1\&q=85\&s=765cb52c32e28aef4b385410d090a52c)

Vault shares (Testnet-Only) are also distinct from a personal trading balance or direct Lending supply shares.

## Key rules

1. **Fund the correct side.** Bridged tokens arrive as EVM balances. Core trading uses Core balances. The two address forms can represent the same account while the balances remain separate.
2. **Check the registered token.** Only enabled token pairs convert. Confirm the token denomination and selected network. The API can label on-chain `USDC.e` as `USDC`; resolve the asset through its currency and token-pair records.
3. **Respect units.** Core uses 18 decimals for every registered token, while each EVM contract sets its own. USDC.e uses 6 decimals on EVM, so one token is `1,000,000` EVM contract units and `1,000,000,000,000,000,000` Core units.
4. **Allow for outflow limits.** Core to EVM transfers have token-wide hourly and daily limits. Capacity is shared across accounts.

For transaction methods, amount conversion, and verification queries, see [Transfer Assets](https://docs.aultblockchain.com/dex-api/trading/transfer-assets.md). Use [Markets & Currencies](https://docs.aultblockchain.com/dex-api/rest/markets-and-currencies.md) for API symbols and [Token Registry](https://docs.aultblockchain.com/developer-guide/precompile/tokenregistry.md) for the conversion interface.


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