Hi there,

We’ve kicked summer off with a bang. At Circle Dev Summit Cannes, builders recorded high-impact demos that show what’s possible with Circle products. We introduced Circle Gateway, a new crosschain primitive that enables a unified USDC balance for near-instant crosschain liquidity. At ETHGlobal Cannes, hackathon participants pushed to make USDC even more versatile. At Solana Summit APAC, we connected with more than 1,000 founders and developers to open the door to the next wave of onchain innovation.

And we’re putting cash behind our commitment to drive development. With Circle Developer Bounties, developers can earn USDC for building multichain USDC payment systems, wallets with dynamic security controls, gasless experiences, and more. Start building with Circle Developer Bounties. Earn USDC. Make something that moves the ecosystem forward.

Start Building

Integration

Circle Paymaster keeps on growing. With the recent addition of Avalanche and Unichain, contract (v0.8) now supports 7 chains including Arbitrum, Base, Ethereum, OP Mainnet, and Polygon. That means you can build ERC-7702 smart accounts that pay gas fees in USDC, on all 7 chains, without needing native tokens.

Looking for USDC token addresses? Here’s the full list for both mainnet and testnet.

import 'dotenv/config'

import { createPublicClient, http } from 'viem'

import { avalancheFuji, unichainSepolia } from 'viem/chains'

import { privateKeyToAccount } from 'viem/accounts'

import { toSimple7702SmartAccount } from 'viem/account-abstraction'

const chain = avalancheFuji

const client = createPublicClient({ chain, transport: http() })

const owner = privateKeyToAccount(process.env.OWNER_PRIVATE_KEY)

const account = await toSimple7702SmartAccount({ client, owner })

Ecosystem Spotlight

Check out the latest Builder Series. In this month’s episode we chatted with Glow¹ CEO David Vorick about his efforts to decentralize green energy production. Learn what happens when people use smart contracts and stablecoins like USDC to fund real-world infrastructure, and how those same tools can help verify, fund, and scale new solar farms.

Curious about who else is innovating with Circle’s products and services? Scroll through our Builder Series library to catch up on past episodes.

Announcements

Earn USDC with Circle Developer Bounties

Circle teamed up with DoraHacks to launch Circle Developer Bounties, an opportunity for devs to build solutions with Circle smart contracts, APIs, and SDKs. Work on multichain USDC payments, gasless UX, and secure wallets for a shot at the 20,000 USDC incentive pool.

ETHGlobal Cannes hackathon winners

Thanks to all who participated in the ETHGlobal Cannes hackathon. Congrats to the winning teams who built onchain solutions to complex problems.

Upcoming Events

Look out for Circle at these upcoming conferences and events:

AUG 13

Circle Dev Summit NYC

New York, US

Registration coming soon

AUG 14

ETHGlobal Pragma

New York, US

AUG 15–17

ETHGlobal NYC

New York, US

Register to attend

We hope to see you in NYC. Come build with us, or just say hi.