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Circle Developer
Circle
3,647 posts
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Circle Developer
Circle
@BuildOnCircle
🛠️Build on @Circle with @USDC innovating for an inclusive future | Join our discord for support at circle.com/discord
Circle.com/discord
circle.com/developers
Joined March 2023
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    Circle Developer
    Circle
    @BuildOnCircle
    Nov 5, 2025
    Bridge Kit now supports @arc Testnet! Bridge Kit makes it easy to build crosschain experiences with @USDC and CCTP V2 in under ten lines of code: → Intuitive SDK methods → Built-in monetization support → Flexible setup → Step-by-step tutorials Get started with Bridge Kit:
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    Circle Developer
    Circle
    @BuildOnCircle
    14h
    Gateway now supports ERC-1271 for transfer authorization. That means smart contracts and smart wallets can authorize Gateway transfers through signature validation, without relying on an EOA delegate. In this Release Notes episode, learn about: → Setting contractSigner: true
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    00:00
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    Circle Developer
    Circle
    @BuildOnCircle
    Jul 31
    Your Circle Agent Stack can now stay up to date with less manual work. In this Release Notes episode, we walk through: → Circle update to upgrade the Circle CLI in place → Update notices when a newer CLI version is available → Circle skill update --tool claude-code to keep
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    00:00
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    Circle Developer
    Circle
    @BuildOnCircle
    Jul 30
    A new customer is forming for API providers: autonomous agents. With x402 and Circle Agent Stack, agents can discover your API, pay per request in USDC, and use your service without a checkout page, account setup, or subscription. Turn your endpoint into an agent-ready service:
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    How to Monetize APIs for AI Agents with Agent Stack and x402 | Circle
    From circle.com
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    Circle Developer
    Circle
    @BuildOnCircle
    Jul 22
    Relay integrated Circle Gateway to make crosschain payment liquidity easier to scale. Instead of pre-positioning USDC across every network, @RelayProtocol can use a unified balance and draw from it when destination-chain inventory runs low. For builders, that means a cleaner
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