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One of the biggest friction points for onchain builders right now? Moving stable value (like USDC) across chains without insane fees, delays, or sketchy bridges.

Native CCTP (Circle's Cross-Chain Transfer Protocol) fixes a lot of that; burn on source, mint on destination, super clean. Recently tested bridging USDC to Arc with their Bridge Kit wrapper. Here's the quick playbook that worked smoothly.

Learn to use Circle's Bridge Kit to programmatically transfer USDC

Quickstart Spotlight: Bridge USDC to Arc with CCTP + Bridge Kit - Blog | The Arc Community Hub

- Wallet with USDC on a supported source chain (e.g., Ethereum, Optimism, etc.)

- Basic dev setup (Node.js, ethers.js or wagmi/viem/rainbow kit)

The Bridge Kit SDK makes it ~10 lines of code instead of manual CCTP calls. Key steps:

3. Call bridge USDC() with amount, source/dest chain IDs, recipient

The flow: approve USDC → initiate burn → wait for attestation → mint on Arc. No custom relayers needed, Circle handles it all!

- Compliant, institutional-grade transfers (no wrapped junk)

- Opens up treasury/yield plays on chains like Arc without leaving USDC liquidity behind

Tested it end-to-end - smooth UX for non-crypto users too if you wrap it in a clean frontend.

Pro tip: Start on testnet to avoid gas surprises. Cross-chain stablecoin movement is getting Web2-level seamless, and that's huge for real adoption.

Have you tried CCTP-based bridging lately? What chain pairs are you moving USDC between most? Drop your wins or pain points below I'm curious to hear what others are building around this

One of the biggest friction points for onchain builders right now?

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