App Kit SDK: Bridge

The App Kit SDK includes the Bridge capability that lets you move USDC and EURC across blockchains in a few lines of code. It abstracts the underlying CCTP flow so you can bridge without orchestrating the low-level burn, attestation, and mint steps yourself.

How it works

Bridge moves USDC or EURC from a wallet on the source blockchain to a wallet on the destination blockchain. The SDK handles the underlying CCTP burn, attestation, and mint steps for you.

Quick look

This code snippet bridges USDC between an EVM and non-EVM chain in a single method call:

TypeScript

// Transfer 1.00 USDC from Solana to Arc
// Defaults to USDC when `token` is omitted
const result = await kit.bridge({
  from: { adapter: solanaAdapter, chain: "Solana_Devnet" },
  to: { adapter: viemAdapter, chain: "Arc_Testnet" },
  amount: "1.00",
});

For a complete end-to-end flow, follow the quickstart.

Installation

Install the App Kit SDK to use Bridge. If you only need to bridge and don’t want to install the full App Kit SDK, follow the steps below to install the standalone Bridge Kit.

Install Bridge Kit

npm install @circle-fin/bridge-kit

yarn add @circle-fin/bridge-kit

Install adapters

Install the adapters you need for the chains you plan to bridge between.

Viem
Ethers
Solana
Circle Wallets

npm install @circle-fin/adapter-viem-v2 viem

yarn add @circle-fin/adapter-viem-v2 viem

npm install @circle-fin/adapter-ethers-v6 ethers

yarn add @circle-fin/adapter-ethers-v6 ethers

npm install @circle-fin/adapter-solana-kit @solana/kit @solana/web3.js

yarn add @circle-fin/adapter-solana-kit @solana/kit @solana/web3.js

npm install @circle-fin/adapter-circle-wallets

yarn add @circle-fin/adapter-circle-wallets

Send

Bridge

Swap

Unified Balance

Onramp

Earn

App Kit SDK: Bridge

How it works

Quick look

Installation

​How it works

​Quick look

​Installation

How it works

Quick look

Installation