The Economic OS for the internet. Now live in public testnet.
Joined August 2025
- Tweets 979
- Following 40
- Followers 110,324
- Likes 528
193 Photos and videos
Arc Public Testnet is now live.
Open to developers and enterprises globally, Arc is the Economic OS for the internet that unites programmable money and onchain innovation with real-world economic activity.
Start building: docs.arc.network
Learn more: arc.network/blog/circle-laun…
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We’re in New York for ETHGlobal New York from June 12–14, 2026 with $15,000 in prizes for best submissions.
Building on Arc in NYC? We’re looking for stablecoin-native applications built on Arc and with Circle tooling across wallets, interops, App Kit, and the new Agent Stack.
Come ship with the team, get hands-on support, share product feedback, and compete for prizes.
See you here!
ethglobal.com/events/newyork…
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The Bored Room was an eight-hour waiting game about legacy financial rails.
Approvals stalled. FX leaked value. Banking hours got in the way. The payment never arrived.
Funny because it was fictional.
Painful because it was familiar.
Arc is designed to fix this. An open internet platform built for:
→ 24/7 settlement
→ Sub-second finality
→ Stablecoin-native payments
→ Programmable FX
→ Agentic economic activity
Read the recap: arc.io/blog/eight-hours-in-t…
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Arc Testnet is upgrading to v0.7.2.
This release activates on Testnet on June 18, 2026 at 5:00 AM PT, bringing new features to the network.
Please upgrade your testnet nodes before activation to avoid desyncing.
Release notes: github.com/circlefin/arc-nod…
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New in the Unified Balance Kit technical series: Designing for Pending and Funds-in-Motion States
Available USDC is not always the same as confirmed balance.
Model spend readiness across confirmed balances, pending inbound funds, and committed execution flows.
arc.io/blog/unified-balance-…
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Arc retweeted
Jun 12
1/ Calling all artists, media curators and publishers! Today we're proud to present the Lepton Agent Hackathon, a virtual event in collaboration with Arc exploring agents that transact at the smallest scale - with Circle Agent Stack! Here's how to participate and win 👇
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Arc retweeted
Jun 12
Quick one Architects 🔥
For all regional chapter events both virtual and in-person are moving to an application only process. This change came after the team noticed members joining chapter discussions outside their region.
Missed a registration? Don't worry. Every chapter still has open spots. Go to your Arc House chapter now and apply to attend an event in your area.
Keep building on Arc
community.arc.io/home/clubs/…
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Arc retweeted
🇸🇬 Singapore! your first @arc in person community meetup has been posted
June 18, 6-9pm [hosted by @TxnSheng @hj_chen]
Apply to join here: community.arc.io/home/clubs/…
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Liquidity infrastructure for stablecoin FX is building on Arc.
@AerodromeFi is coming to Arc, deploying its exchange infrastructure to help power Arc’s stablecoin-native ecosystem.
This launch unlocks:
→ Deeper markets for FX swaps and liquidity provision
→ A proven way to bootstrap stablecoin liquidity on Arc
→ Capital-efficient infrastructure to help grow onchain economies
More to come.
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Arc retweeted
vamos !!
Jun 10
Kickoff Argentina de Arc Hub!
¡Invitación abierta! Vamos a hacer el primer Roundtable de Argentina.
Vamos a compartir lo que estamos construyendo en el capítulo local, discutir casos de uso reales de stablecoins en el país y poner sobre la mesa las oportunidades y desafíos de la región.
Es el puntapié inicial para alinear la comunidad y definir lo que viene.
📅 Region Kickoff Roundtable Discussion
🔗 community.arc.io/home/clubs/…
#ArcHub #Argentina #Stablecoins #CryptoArgentina #Web3
@arc_fajores @arc @criptopoeta
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XyloNet 🤝 @arc
Stablecoin-native DeFi on Arc Testnet - StableSwap AMM, CCTP V2 bridge, ERC-4626 vaults, and composable liquidity pools for USDC and EURC. Plus PayX: tip any X handle in USDC before the recipient even has a wallet.
arc.io/blog/how-xylonet-is-b…
XyloNet is building stablecoin DeFi and social tipping on Arc Testnet.
Built by ForgeLabs, @Xylonet_ brings together:
→ Stablecoin swaps for USDC and EURC
→ Liquidity pools
→ CCTP V2 bridging
→ ERC-4626 vaults
Alongside XyloNet, PayX adds a consumer payment flow that lets users send USDC tips (which are held in smart-contract escrow) to an X handle before the recipient has connected a wallet.
Together, they show how Arc can support both DeFi infrastructure and payment UX on the same stablecoin-native settlement layer.
arc.io/blog/how-xylonet-is-b…
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XyloNet is building stablecoin DeFi and social tipping on Arc Testnet.
Built by ForgeLabs, @Xylonet_ brings together:
→ Stablecoin swaps for USDC and EURC
→ Liquidity pools
→ CCTP V2 bridging
→ ERC-4626 vaults
Alongside XyloNet, PayX adds a consumer payment flow that lets users send USDC tips (which are held in smart-contract escrow) to an X handle before the recipient has connected a wallet.
Together, they show how Arc can support both DeFi infrastructure and payment UX on the same stablecoin-native settlement layer.
arc.io/blog/how-xylonet-is-b…
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Boream & Boredley paused for pink sprinkle donuts.
The old financial system pauses for banking hours, settlement windows, FX delays, and manual approvals.
Arc is built for what should not have to wait:
→ 24/7 onchain FX
→ Stablecoin-native payments
→ Sub-second finality
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The agentic economy will depend on infrastructure that can support autonomous transactions at internet scale.
That means predictable costs, immediate settlement, programmable logic, and systems that reduce friction for high-frequency value exchange.
Arc is built for that future.
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Arc retweeted
Jun 11
Financial infrastructure at institutional scale depends on selective transparency.
Arc’s approach to opt-in privacy is a first of its kind, allowing confidentiality, verification, and disclosure to be expressed as programmable properties of the system.
It enables parties to operate:
• Private where commerce requires it.
• Verifiable where trust requires it.
• Disclosable where regulation requires it.
• Programmable throughout.
Previewing Arc’s future approach to opt-in privacy.
Sensitive financial workflows should not become public market data.
Arc’s privacy whitepaper outlines a roadmap for future confidentiality features with governed visibility for authorized parties.
Potential use cases include:
→ Payroll
→ Treasury
→ Trading workflows
→ Asset issuance
→ B2B payments and FX
Privacy without anonymity, designed for real financial activity onchain: arc.io/blog/privacy-with-con…
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Arc retweeted
🇳🇬 So much love for the Lagos meetups so far...before I even had time to announce them you signed up...
June 20 (build club) host @JerryOjumah: community.arc.io/public/club…
June 26 (region kick off mixer) host @JerryOjumah w special guest @CarbzXBT: community.arc.io/home/clubs/…
stay tuned on waitlist tickets!
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Arc retweeted
Jun 11
Every onchain market eventually has to answer this:
who picks the order of trades, and what stops them from extracting value from yours.
The new arc AMP paper proposes an answer that traditional market regulators would actually recognize which is bounded inclusion, fixed ordering, no single block assembler
bonus points: applications get a direct path to validators and capture the value of their own order flow.
Circle Research introduces Arc Multi-Proposer Protocol (AMP), a new approach to block building.
AMP introduces proposers that bundle user transactions into payloads and broadcast them directly to validators.
The result:
→ Bounded inclusion
→ Fixed ordering
→ Application-aligned order flow
For financial applications, block construction matters. Predictable settlement needs predictable transaction handling.
circle.com/blog/amp-rethinki…
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Arc retweeted
Excited to see the France Chapter launch in Arc House.
Jun 10
On 25 juin, 17h CET, the France 🇫🇷🇪🇺chapter takes its first roundtable inside Arc House. Live discussion, breakouts, real builders, creator ..
If you're building or watching from France or Europe, see you there.
Take your ticket 🎟️ 👇
community.arc.io/home/clubs/…
#BuildOnArc @arc
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Arc retweeted
Jun 11
AMP enables transaction fairness, PFOF rebates, and much more. Talk to us if you are interested in exploring serving as a proposer with App-Specific Sequencing and unique order flows.
Note: AMP is exploratory research at this stage until further validation.
Circle Research introduces Arc Multi-Proposer Protocol (AMP), a new approach to block building.
AMP introduces proposers that bundle user transactions into payloads and broadcast them directly to validators.
The result:
→ Bounded inclusion
→ Fixed ordering
→ Application-aligned order flow
For financial applications, block construction matters. Predictable settlement needs predictable transaction handling.
circle.com/blog/amp-rethinki…
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Circle Research introduces Arc Multi-Proposer Protocol (AMP), a new approach to block building.
AMP introduces proposers that bundle user transactions into payloads and broadcast them directly to validators.
The result:
→ Bounded inclusion
→ Fixed ordering
→ Application-aligned order flow
For financial applications, block construction matters. Predictable settlement needs predictable transaction handling.
circle.com/blog/amp-rethinki…
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