What is Circle Wallets?

Circle Wallets allows you to embed secure wallets in any app with tools for wallet management and onchain operations.

What is Circle Contracts?

Circle Contracts provides tools to build and manage smart contracts with audited smart contracts and developer-friendly APIs.

CCTP (Cross-Chain Transfer Protocol) allows you to move USDC securely across supported blockchains with 1:1 capital efficiency via native burn-and-mint transfers.

What is Circle Paymaster?

Circle Paymaster allows transaction fees to be paid in USDC, simplifying the user experience for blockchain transactions.

What is Circle Gateway?

Circle Gateway enables a unified USDC balance across chains, unlocking on-demand liquidity and enabling chain-abstracted experiences.

Developer Hub

Build with Circle

Explore the docs, tools, code samples, events, and updates you need to build and launch production-ready apps with Circle’s full-stack platform. Get started for free in the Circle Developer Console.

Testnet Faucet

Your full-stack stablecoin platform

Explore the complete stack for building with USDC from wallets, contracts, crosschain infrastructure, gas abstraction, and app development.

Each product can be used on its own, but together they cover the full system: Wallets for UX, Contracts for execution, Gateway for balance abstraction, CCTP for cross-chain movement, and Arc for coordination.

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Docs

Circle Gateway

Build with a unified USDC balance across chains without pre-funding or rebalancing.

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Docs

App Kits

Add send, swap, and bridge flows across chains with one SDK for your existing stack.

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Docs

Circle xReserve

Launch a USDC-backed stablecoin on your blockchain with built-in crosschain interoperability.

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Docs

Nanopayments

Power gas-free USDC payments as small as $0.000001 for AI agents and new app experiences.

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Docs

Ship faster with Arc

Arc enables teams to ship modern financial applications by simplifying the network layer. With stablecoin-based fees, deterministic finality, opt-in privacy features, and Circle’s out-of-the-box integrations, teams can go from idea to production faster with fewer moving pieces, all while contributing to the foundations of the world’s Economic OS.

Explore Arc