This Quickstart is the shortest path from first touch to first successful build: deploy an ERC-20 contract on Arc Testnet and mint tokens using Circle’s developer tooling.


Quickstart Spotlight: Deploy an ERC-20 on Arc using Circle Contracts

Deploy ERC-20 tokens on Arc Testnet without writing Solidity from scratch. This guide covers Circle Contracts, templates, wallets, testnet USDC fees, and real-time monitoring for RWA workflows.

Tokenizing Real-World Assets with Circle Contracts

Regulated stablecoins like USDC are building a new internet financial system—doing for money what the internet did for data. This report shows how it enables dynamic, inclusive finance.

Beyond Stablecoins: The Rise of the Internet Financial System

Learn how to build a chat-based autonomous wallet agent using Circle developer-controlled wallets, Groq Llama 3.3, and LangChain tools to check balances, transfer USDC, and purchase items automatically.

Building an Autonomous Wallet Agent

Before Arc DeFi Hackathon returns, we’re warming things up.​Join us at Encode Hub for an Arc Meetup - an evening for builders, founders, and DeFi teams curious about Arc and what’s coming next.<ol><li data-list="bullet">​Arc ecosystem deep dive</li><li data-list="bullet">​Meet the Arc team + builders</li><li data-list="bullet">​Hackathon prep &amp; early ideas</li><li data-list="bullet">​Encode Hub, London</li><li data-list="bullet">​Feb 12th</li></ol>​Whether you’re hacking in Feb or just exploring Arc, this is the place to start. <h2>​​About Arc</h2>Arc empowers builders and issuers globally to unlock the next generation of onchain lending, capital markets, FX, and payments — driving liquidity across currencies and asset classes.​​Arc’s core features include:<ol><li data-list="bullet">​​Stablecoins as native gas: Low, predictable, fiat-denominated gas fees — starting with USDC</li><li data-list="bullet">​​Deterministic sub-second finality: Instant settlement powered by Malachite, a high-performance BFT consensus engine</li><li data-list="bullet">​​Opt-in, configurable privacy: Selectively shield balances and transactions while remaining compliant</li><li data-list="bullet">​​Full Circle platform integration: USDC, EURC, USYC, Mint, Wallets, Contracts, CCTP, Gateway, Circle Payments Network (CPN), and more</li></ol>​​Arc gives asset issuers and builders a secure, scalable environment to launch and grow — without compromising openness or developer experience.---Arc is offered by Circle Technology Services, LLC (“CTS”). CTS is a software provider and does not provide regulated financial or advisory services. You are solely responsible for services you provide to users, including obtaining any necessary licenses or approvals and otherwise complying with applicable laws.Arc has not been reviewed or approved by the New York State Department of Financial Services.The product features described in these materials are for informational purposes only and may be modified, delayed, or cancelled without notice at the sole discretion of Circle Technology Services, LLC. Nothing herein constitutes a commitment, warranty, guarantee, or investment advice.By attending you also agree that as a guest of the event, you irrevocably grant Circle the right to interview, record, photograph, visually identify, or otherwise use, reproduce and edit your voice, appearance, likeness, photograph, name and/or biography, in any audio recording, video recording, or still photography (collectively “Appearance and Recording”). You also irrevocably grant Circle the right to exhibit, distribute, transmit and/or otherwise use your Appearance and Recording for any advertising, marketing, promotional, publicity, or other purpose that Circle may see fit, without having to first obtain your consent or approval.

Arc Meetup London — Presented by Encode Club

FINAL CHANCE to prove you’re in the top 1% of builders.This is your last shot to join the second Arc x Circle hackathon and build agentic payment systems on Arc - the Economic OS for the Internet If you were waiting for a sign…This is the one top builders don’t ignore.Tackle real challenges from Arc, Circle &amp; partners!Build with USDC as native gas on a stablecoin-first L1.Learn directly from the teams shaping AI, payments &amp; onchain economics.Connect with global builders and create something the world hasn’t seen yet.Your mission is simple: Register. Team up. Start building.Opportunities like this don’t come twice!January 9-24, 2026Online + On-Site (Jan 23-24 ) in San Francisco

Agentic Commerce on Arc Hackathon Hosted by LabLab.ai

Join Thirdweb and Circle for an evening on Arc &amp; blockchain interoperability, where we’ll explore how Arc is emerging as a stablecoin liquidity hub and how developers can move that liquidity across the entire blockchain ecosystem.What to expect: Live demos of Circle’s interoperability stack→CCTP with the new Bridge Kit SDK→Gateway for unified crosschain liquidity accessLearn about funding opportunities from CirclePanel discussion on Arc, interoperability, and the next phase of multichain infrastructure→ Featuring Furqan Rydhan (thirdweb), Gianluca Minoprio (Daimo Pay), and Alokik Bhasin (Circle)Networking with builders shipping on Arc and across leading blockchains. If you’re building the future of programmable money, this is the room to be in!---Arc is offered by Circle Technology Services, LLC (“CTS”). CTS is a software provider and does not provide regulated financial or advisory services. You are solely responsible for services you provide to users, including obtaining any necessary licenses or approvals and otherwise complying with applicable laws.Arc has not been reviewed or approved by the New York State Department of Financial Services.The product features described in these materials are for informational purposes only and may be modified, delayed, or cancelled without notice at the sole discretion of Circle Technology Services, LLC. Nothing herein constitutes a commitment, warranty, guarantee, or investment advice.By attending you also agree that as a guest of the event, you irrevocably grant Circle the right to interview, record, photograph, visually identify, or otherwise use, reproduce and edit your voice, appearance, likeness, photograph, name and/or biography, in any audio recording, video recording, or still photography (collectively “Appearance and Recording”). You also irrevocably grant Circle the right to exhibit, distribute, transmit and/or otherwise use your Appearance and Recording for any advertising, marketing, promotional, publicity, or other purpose that Circle may see fit, without having to first obtain your consent or approval.

Arc Meetup San Francisco — Presented by Thirdweb

<h1>Technical Insights on Arc Testnet Reliability</h1>Live this Friday at 11 AM ET Principal Product Manager Adi Seredinschi will walk through the reliability work behind the latest Technical Insights blog and break down how Arc achieves predictable performance and consistent block times.We’ll cover: → How the team tested Reth and the Malachite consensus engine → The tools used to push Arc to its limits: Quake, Guzzler, and Spammer → How Arc delivers stable ~500ms block cadence across validatorsDeep dive. Engineering tradeoffs. Transparent look into how Arc is built.

Technical Insights on Arc Testnet Reliability

<h1>Live Workshop with Trails</h1><h2>Building Seamless CrossChain Experiences with CCTP</h2> <h3>SUMMARY</h3>An event workshop featuring TrailsHQ covering how Trails uses CCTP, how to design cross-chain payment flows, and best practices for developers building with USDC.<h3>KEY TOPICS</h3><ol><li data-list="bullet">How Trails uses CCTP under the hood</li><li data-list="bullet">Designing cross-chain payment flows</li><li data-list="bullet">Developer best practices for building with USDC</li><li data-list="bullet">Creating seamless cross-chain experiences</li></ol><h3>CONTENT</h3>Join us today at 1 PM ET for a live workshop with Trails. Trails builds universal transaction rails for crypto, making it possible to send and spend digital assets with a single click. In this session, we’ll break down:→ How Trails uses CCTP under the hood→ How to design similar cross-chain payment flows→ What best practices developers should know when building with USDC. Bring your questions and come learn how to build seamless cross-chain experiences with CCTP.---Arc is offered by Circle Technology Services, LLC (“CTS”). CTS is a software provider and does not provide regulated financial or advisory services. You are solely responsible for service

Crosschain Payments with CCTP Fast Transfer

Join the global network of Architects building the Economic OS for the internet. We’re reimagining how value moves, creating the tools that make that economy work for everyone. 

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Join the global network of Architects building the Economic OS for the internet. We’re reimagining how value moves, creating the tools that make the economy work for everyone.

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