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

# Sui

> Network-specific features, signature kinds, supported assets, and integration requirements for Sui wallets on the Dfns custody platform.

Sui is a Layer 1 blockchain with an object-oriented data model. This guide covers Sui-specific features when using Dfns wallets.

## Object model

Sui uses an **object-based model** where everything is represented as an object, including:

* Coins (fungible tokens)
* NFTs
* Custom objects

Dfns indexes all objects owned by your wallet.

### Coin objects

When you receive SUI tokens, they are stored as coin objects. Multiple transfers result in multiple coin objects. Dfns automatically manages coin merging when needed for transfers.

## Transfers

Use the [Transfer Asset](/api-reference/wallets/transfer-asset) endpoint for Sui transfers:

* **Native SUI**: Use `kind: Native` with amount in MIST (1 SUI = 1,000,000,000 MIST)
* **Coins**: Use `kind: Coin` with the coin identifier

## SDK integration

For full transaction control, use the Dfns SDK with [@mysten/sui](https://sdk.mystenlabs.com/typescript). See the [Sui integration example](https://github.com/dfns/dfns-sdk-ts/blob/m/examples/libs/sui/basic-tx/main.ts).

## Related resources

* [Sui broadcast examples](/api-reference/broadcast/sui)
* [Sui signing examples](/api-reference/sign/sui)
* [Supported networks](/networks)
* [Sui documentation](https://docs.sui.io/)