# Getting started

SwapKit offers a composable, user-friendly Partner API and Widget to integrate cross-chain swaps. SwapKit gives developers API access to a powerful suite of non-custodial, permissionless DeFi tools to interact with 6,000+ crypto assets across 30+ blockchains including Bitcoin, Ethereum, BNB Chain and Solana via many different providers, including Near Intents, Chainflip, Garden, Flashnet or THORChain.

All transactions through SwapKit require a single signature by the user and integrators can earn trading fees from every trade.

SwapKit allows an easy access to:

* Cross-chain trading API with DEX Aggregation and transaction creation support
* Wallet interaction for multiple chains
* Cross-chain transactions tracking
* The possibility to check anti-money laundering (AML) compliance of the addresses involved in a trade before the transaction is signed.

SwapKit can be implemented through our [REST API](/swapkit-api/introduction.md), integrating cross-chain swaps into your application.

You can also implement SwapKit through [our Widget](/swapkit-widget/introduction.md), a drop-in, embeddable swap interface for your website or app.

### What is SwapKit?

SwapKit provides seamless access to cross-chain trading through multiple decentralized liquidity sources. It allows users to trade native assets in a single transaction without dealing with the complexity typically involved in cross-chain interactions.

SwapKit sources liquidity from NEAR Intents, THORChain, Chainflip, Flashnet, Garden, Harbor, Flashnet, 1inch and Maya Protocol, which combined create a list of 30+ [supported chains](/swapkits-trade-offerings.md#cross-chain-trading-matrix), with more coming.

To initiate a cross-chain transaction through SwapKit, users only need gas on the originating chain. From there, they can access assets on any connected chain, including tokens aggregated from DEXs, reaching the full range of tokens on the destination blockchain.

For developers, SwapKit simplifies cross-chain swaps integration and ensures your application stays up to date.

* **Open-source SDK:** View the GitHub repository [here](https://github.com/thorswap/SwapKit).
* **Smart contracts:** Fully open source.
* **API:** Closed source proprietary code base.
* **Widget:** a drop-in integration of SwapKit, ready to implement into your site.


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