developers

Build on Circle with USDC

Create the next revolutionary decentralized app with Web3 APIs or integrate fast, regulated digital currency into transactions to serve customers around the world.

async function create CryptoPayment() { const payment = await circle.paymentIntents.createPaymentIntent({ idempotencyKey: "5c6e9b91-6563-47ec-8c6d-0ce1103c50b3", amount: { amount: "3.14", currency: "USD" }, settlementCurrency: "USD", paymentMethods: [{ chain: "ETH", type: "blockchain" }] }); }
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Sandbox

Test, explore & inspire

Try out Circle Web3 APIs in a workspace that functions just like production. Investigate new workflows or refactor existing applications to minimize bugs and optimize user experience.

  • Experiment in a safe environment to help confirm products and services work as expected before going live.
  • Test integrations and API calls without performing real financial transactions.
  • Create code that easily converts into a production version by switching out URLs and API keys.
API suite

Integrate seamlessly

Leverage Circle’s financial services APIs to accept crypto payments and make near-instant payouts with USDC, or automate transactions for increased efficiency.

Explore our docs
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Plan and build your application quickly with well-documented APIs, a robust SDK, and widgets integrated with just a few lines of code.

bolt-bazooka

Accept BTC and ETH payments that automatically settle in USDC, or programmatically access USDC liquidity for capital market trades.

launch-bazooka

Start with payments, payouts, and transfers, then expand to workflow automation or generate digital asset wallets for your customers.

Multichain USDC
USDC

Build with fully backed digital currency

Enable transactions using stable digital currency pegged to the U.S. Dollar and fully backed by cash short-dated and U.S. Treasuries. Build applications for finance, asset management, gaming and more, supported by more than $40 billion in USDC and trillions in historic transaction volume*. Use USDC as a flexible, cost-effective component of backend financial infrastructure or give customers simplified access to digital assets and the Web3 ecosystem.

* As of February 22, 2023

Multi-Chain

Access broad ecosystems

USDC and Circle APIs are available across eight supported blockchains offering a variety of capabilities, communities and development environments, so it’s easy to choose the right configuration for your use case. Cross-Chain Transfer Protocol (CCTP) allows users to permissionlessly swap native USDC between supported blockchains, validated by Circle. Build user experiences that combine some of the best decentralized applications on any supported network by moving chain-switching behind the scenes, or design and implement complex financial transactions with interoperable USDC liquidity in composable, permissionless smart contracts.

CCTP Dev Docs
eth-icon
Ethereum USDC
Total Supply1 $32.7B
Token Standard ERC-20
Mainnet Address 0xa0...eb48
Testnet Address 0x07...a37F
Multichain Ethereum
Total Supply1 $32.7B
Token Standard ERC-20
Mainnet Address 0xa0...eb48
Testnet Address 0x07...a37F

Ethereum is open access to digital money and data-friendly services for everyone – no matter your background or location. It's a community-built technology behind the cryptocurrency ether (ETH) and thousands of applications you can use today.

Learn more about Ethereum USDC

 

Top Projects using Ethereum USDC

1 As of March 24, 2023

solana-icon
Solana USDC
Total Supply1 $678M
Token Standard SPL
Mainnet Address EPjF...Dt1v
Testnet Address 4zMM...ncDU
multichain-solana
Total Supply1 $678M
Token Standard SPL
Mainnet Address EPjF...Dt1v
Testnet Address 4zMM...ncDU

Solana is a decentralized blockchain built to enable scalable, user-friendly apps for the world. Solana ensures composability between ecosystem projects by maintaining a single global state as the network scales.

Learn more about Solana USDC

 

Top Projects using Solana USDC

1 As of March 24, 2023

avalanche-icon
Avalanche USDC
Total Supply1 $358M
Token Standard ERC-20
Mainnet Address 0xB9...8a6E
Testnet Address 0x54...Bc65
Multichain Avalanche
Total Supply1 $358M
Token Standard ERC-20
Mainnet Address 0xB9...8a6E
Testnet Address 0x54...Bc65

Avalanche is an open, programmable smart contracts platform for decentralized applications. Avalanche is the fastest smart contracts platform in the blockchain industry, as measured by time-to-finality. Avalanche is Solidity-compatible, so all of your favorite tools like Remix, Truffle, and Tenderly work out of the box.

Learn more about Avalanche USDC

 

Top Projects using Avalanche USDC

1 As of March 24, 2023

tron-icon
Tron USDC
Total Supply1 $566M
Token Standard TRC-20
Mainnet Address TEkx...rdz8
Testnet Address TFGB...Pjnh
Multichain TRON
Total Supply1 $566M
Token Standard TRC-20
Mainnet Address TEkx...rdz8
Testnet Address TFGB...Pjnh

TRON is one of the largest blockchain-based operating systems in the world, offering public blockchain support of high throughput, high scalability, and high availability for all Decentralized Applications (DApps) in the TRON ecosystem.

Learn more about TRON USDC

 

Top Projects using TRON USDC

1 As of March 24, 2023

algo-icon
Algorand USDC
Total Supply1 $90.1M
Token Standard ASA
Mainnet Address 31566704
Testnet Address 10458941
Multichain Algorand
Total Supply1 $90.1M
Token Standard ASA
Mainnet Address 31566704
Testnet Address 10458941

Algorand is one of the world's most decentralized, scalable, and secure blockchain infrastructure. From decentralized finance to generative NFT art (and everything in between), our sustainable blockchain is powering economic models of the future.

Learn more about Algorand USDC

 

Top Projects using Algorand USDC

1 As of March 24, 2023

stellar-icon
Stellar USDC
Total Supply1 $77.3M
Token Standard Stellar Asset
Mainnet Address USDC...KZVN
Testnet Address USDC...FLA5
Multichain Stellar
Total Supply1 $77.3M
Token Standard Stellar Asset
Mainnet Address USDC...KZVN
Testnet Address USDC...FLA5

Stellar is an open network for storing and moving money. Stellar makes it possible to create, send, and trade digital representations of all forms of money: dollars, pesos, bitcoin, pretty much anything. It’s designed so all the world’s financial systems can work together on a single network.

Learn more about Stellar USDC

 

Top Projects using Stellar USDC

1 As of March 24, 2023

flow-icon
Flow USDC
Total Supply1 $9.67M
Token Standard Flow Token
Mainnet Address A.b1...oken
Testnet Address A.a9...oken
MultichainFlow
Total Supply1 $9.67M
Token Standard Flow Token
Mainnet Address A.b1...oken
Testnet Address A.a9...oken

Flow is a new blockchain built for the next generation of apps, games, and the digital assets that power them. Flow is easy to use and powerful to build with. Every aspect of the platform was designed from the ground up to support exceptional user experience at mainstream scale.

Learn more about Flow USDC

 

Top Projects using Flow USDC

1 As of March 24, 2023

hedera-icon
Hedera USDC
Total Supply1 $5.53M
Token Standard Hedera Token
Mainnet Address 0.0.456858
Testnet Address 0.0.2276691
multichain-hedera
Total Supply1 $5.53M
Token Standard Hedera Token
Mainnet Address 0.0.456858
Testnet Address 0.0.2276691

Hedera is an enterprise-grade public network for you to make your digital world exactly as it should be – yours. Whether you're a startup or enterprise, a creator or consumer, Hedera goes beyond blockchain for developers to create the next era of fast, fair, and secure applications.

Learn more about Hedera USDC

 

Top Projects using Hedera USDC

1 As of March 24, 2023

Identity & Custody

Powerful Web3 catalysts for business

Verite Protocols

Pioneer digital identity with a set of open standards for verification and self-custody of credentials. Connect validated counterparties for financial services or secure ownership of social accounts while protecting privacy and increasing efficiency.

Learn more

CYBAVO Developers

Generate digital asset custody vaults for specific customer use cases, or segregate internal business resources for more efficient management and oversight. Develop custom approval chains and workflows to more securely manage treasury assets or customer funds.

Learn more
Community

Learn, educate & collaborate

Explore the firsthand stories of developers building with Circle and USDC.

What it Takes to Bring 1 Million African Devs into Web3

The Mara Foundation empowers African developers to make the transition from Web2.0 to Web3 while ensuring no one is left behind.

Effective Smart Contract Management

Smart contracts are critical to many blockchain projects, but managing their integration with other services can be frustrating and error-prone. Find out how Circle solved these issues with our bespoke smart contract management and how we built infrastructure to compile and test our smart contracts before deployment.

Integrating Circle’s Cross-Chain Transfer Protocol with your Wallet or App

Circle’s all-new Cross-Chain Transfer Protocol to support USDC interoperability for developers & their users Cross-Chain Transfer Protocol is permissionless and enables USDC to be sent natively across ecosystems, improving liquidity and reducing fragmentation of bridged assets.

Build on Circle

Continue watching our developer video series on YouTube.

Watch now
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For developers

Next Gen User Experiences for Web3 Converge22
Build on Circle

Converge22 Recap: Next Gen User Experiences for Web3

Team Circle | January 27, 2023

Web3 developers should create user-friendly interfaces with better overall user experiences. Challenges and opportunities were shared at Converge22.

Read story
Circle building the developer ecosystem
Build on Circle

2023 Outlook: Building the Developer Ecosystem Together

Sandra Persing | January 24, 2023

Circle shares 2023 roadmap on supporting developers looking to explore crypto utility and build Web3 services.

Read story
smart contract development made easy
Build on Circle

Smart contract development made easy

Sarah Martin | December 19, 2022

Contract-CLI makes managing smart contracts through development, testing, and deployment easier and more consistent. Learn more.

Read story

Upcoming Events

Mar
14
2023

Twitter Space: Circle x Tribe Dev Bootcamp

Circle's Main Twitter Account
Mar
15
2023

Build on Circle Discord Office Hours

Circle Discord

Mar
15
2023

Solana Hacker House Ho Chi Minh City

Ho Chi Minh City, Vietnam

Mar
17
2023

Community Demo Day

Circle Discord
Mar
21
2023

Paris Blockchain Week

Paris, France

Apr
12
2023

Hong Kong Web 3 Festival

Hong Kong

Apr
14
2023

ETHGlobal Tokyo

Tokyo, Japan

Apr
15
2023

Singapore Circle Hacker House

Singapore

Apr
20
2023

Solana Sol.Ladies Build Hacker House

Austin, TX

Apr
26
2023

Consensus

Austin, TX

May
03
2023

Avalanche Summit II

Barcelona, Spain

May
10
2023

Solana Taipei Hacker House

Taipei, Taiwan

May
12
2023

ETHGlobal Lisbon

Lisbon, Portugal

Jun
07
2023

Solana New York Hacker House

NYC, NY

Jun
23
2023

ETHGlobal Waterloo

Waterloo, Canada

Jun
25
2023

Solana Tel Aviv Hacker House

Tel Aviv, Israel

Jul
21
2023

ETHGlobal Paris

Paris, France

Aug
30
2023

Solana Hacker House Berlin

Berlin, Germany

Sept
14
2023

Solana Hacker House Bengaluru

Bengaluru, India

Sept
21
2023

Solana Hacker House Mumbai

Mumbai, India

Sept
22
2023

ETHGlobal NYC

NYC, NY

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Join us on Discord

Be part of a growing ecosystem of developers building with USDC.

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