Arc Mainnet launches as open internet financial platform

September 16, 2026

Arc Mainnet has gone live, described as an "Economic OS for the internet" — an open, onchain financial platform. Details on its scope and target users are still limited to the initial announcement.

EtherFi's app is live on Arc from day one, giving EtherFi users access to the new network at launch.

Sources

https://t.co/bGgztouB4r is live on Arc from day one 🤝 https://t.co/xTSMFth21cx.com ↗
RT @arc: Arc Mainnet is live. The Economic OS for the internet is online and onchain. An open internet platform for the world's financial…x.com ↗

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Arc Mainnet launches as open internet financial platform — Outposts