Arc Public Mainnet will launch on September 16, 2026.
The launch represents the next major milestone for Arc, the Economic OS for the Internet: an open Layer 1 blockchain purpose-built for financial markets, real-time money movement, and the agentic economy.
Arc is currently operating in private mainnet with more than 100 institutional and ecosystem builders integrating with the network and testing real-world use cases. These include stablecoin payments, tokenized asset issuance, global FX, automated transactions, and institutional onchain markets.
Infrastructure built for modern finance
Arc brings open, programmable blockchain infrastructure together with capabilities designed for production financial applications.
The network provides predictable transaction fees payable in stablecoins, starting with USDC, sub-second finality, and infrastructure for digital assets, capital markets, payments, and emerging agent-driven applications. Arc is designed to support the operational, compliance, and reliability requirements of financial institutions without closing the network to developers or permissionless innovation.
When public mainnet launches, anyone will be able to deploy applications onto the network.
Circle will also introduce an initial Arc product suite, including tools for common onchain workflows, smart contract and application development, tokenized real-world asset management, and navigating the broader Arc ecosystem.
Additional details about launch partners, ecosystem applications, and developer tooling will be announced ahead of mainnet.
Start building on Arc
Developers can begin preparing for launch today.
Visit arc.io to explore the network, read the Arc documentation to start building, and join us here on Arc House as we approach September 16. Arc is an open L1 blockchain launched by Arc Network Services LLC ("Arc LLC") and operated by a permissioned validator set. Arc LLC provides software services only and does not offer regulated financial or advisory services. Arc has not been reviewed or approved by the New York State Department of Financial Services or any other regulatory authority.
The Arc network is provided "as is" and "as available." Use of Arc involves inherent risks associated with blockchain technology, including smart contract vulnerabilities, network disruptions, and the absence of recourse for transaction errors or losses. The ability to transact on Arc depends on the ability to obtain and use USDC to pay gas fees. Neither Arc LLC nor any permissioned validator is responsible for the content, accuracy, legality, or functionality of third-party applications, protocols, or services built on or integrated with Arc. You are solely responsible for features or services you provide to users, including obtaining any necessary licenses or approvals and otherwise complying with applicable laws.
All Arc features may be modified, delayed, or cancelled at any time without notice. Nothing herein constitutes a commitment, warranty, guarantee or legal, regulatory, tax, or investment advice.
Coming soon.
