Circle Developer

🛠️Build on @Circle with @USDC innovating for an inclusive future | Join our discord for support at

[Circle Developer @BuildOnCircle]

More assets. Familiar tools. One integrated stack.

CCTP and Bridge Kit, now support expanded multi-asset workflows, with Arc as a Day 1 destination for USDC, EURC, and cirBTC on supported routes.

[Arc @arc]

Interop on Arc is here.

A new integrated stack for builders creating crosschain applications on Arc.

Build with:
→ Move supported Circle-issued assets natively with CCTP
→ Bring third-party tokens crosschain through wrapping
→ Launch new multichain assets with CTS
→ Manage unified crosschain balances with Gateway

Crosschain liquidity, without the complexity.

https://t.co/65x5Q2bdQF

[Sam | Arc and Circle Dev Community @samconnerone]

Building onchain shouldn’t feel like an obstacle course.

Arc Studio helps builders turn ideas into usable applications faster.

Learn from others on Arc House
https://t.co/GW0z57t71O

[Shield @ShieldFi]

Shield Swap adds support for USDCx on Aleo.

Traders can use USDC-backed liquidity confidentially on Shield Swap.

https://t.co/2ACgJlIKUK

[Circle Developer @BuildOnCircle]

AW 000 / CIRCLE AGENTIC WORKS

AI agents are becoming economic actors. They hold balances, hire other agents, and get paid for work.

Circle Agentic Works is where we experiment and build what they need next, in public.

https://t.co/JvYn9OGZTO

Experimental. Not a Circle product. Not advice.

[alcove @alcove_wallet]

Alcove is built on @circle xReserve. Deposit @USDC from @arc, @ethereum and other CCTP-supported chains and receive USDCx, which is USDC-backed and live on Aleo.

Simple, fast, and private.

[Circle @circle]

Circle is partnering with @GlblCtzn to expand economic opportunity across Africa through digital financial innovation.

Participating vendors behind Global Citizen and pgLang’s Move Afrika concerts will be able to get paid in USDC, beginning in Rwanda in 2027.

The multi-year partnership will also:

→ Support financial skills training for local businesses and creators
→ Launch the Global Citizen & Circle Impact Champions Award to fund qualified charitable organizations with USDC

https://t.co/YMleDqMJcr

[Arc @arc]

Bring Arc Studio into the coding agent you already use.

With the Arc Studio CLI, Claude Code, Codex or Cursor can hand off onchain work. Inspect the sandbox, review the results and pull code back into your project.

See the workflow: https://t.co/Ic4vWPKFIp

[Elton Tay @TxnSheng]

Room full of attendees with their laptop open learning how to build x402 ai agents on Cloudfare with payment settlement on @arc

Huge! Thank you @haruki_web3

[Circle @circle]

Meet Circle at Devcon 8, November 5–6.

Ethereum is where USDC got its start.

Stop by our booth to meet the team and try Arc Studio.
Describe your app, generate smart contracts and tests, then review and export the code.

https://t.co/rcsxpzhOPE

[Arc @arc]

DevRel office hours at @EFDevcon 🛠️ Nov 5 & 6, 12–2 PM.

Stop by for an IRL chat with the team and get your questions answered in person.

Find us on Level 3 in the Supporters area.

See you there.

[Arc @arc]

Uniswap v4 gives builders more ways to design markets on Arc.

@haydenzadams and Ben Morris discuss customizable liquidity pools, new asset launches, and building access to liquidity for cirBTC.

A conversation on how more assets coming onchain changes what developers can build with them.

[Arc @arc]

Trading on Arc is already live.

Stablecoins, cirBTC, tokenized assets, lending markets, DEXs, aggregators, and derivatives infrastructure now share one stablecoin-native execution environment.

For teams building onchain markets, Arc brings trading, collateral, liquidity, and settlement closer together.

[Circle Developer @BuildOnCircle]

Applications settle, post collateral, and show balances on the chain where they actually run. If your ERC-20 only lives where you minted it, every other venue needs a one-off bridge or wrapped copy.

With CCTP on Arc you get one economic asset, one bridge identity: burn on source → mint native on destination.

It could be a native crosschain ERC-20 token or a custom issuer-operated ERC-20. Same transfer flow. Fees in USDC. Predictable finality. Issue or hold inventory on Arc, then move it wherever the application needs it.

https://t.co/ILFqEi4wZA

[Arc @arc]

Technical Office Hours with @hj_chen on October 29 at 8 AM ET.

Join us to explore CCTP beyond USDC, covering expanded ERC-20 support, native, custom, and ownerless models, and how tokenId works across chains.

We’ll walk through a live demo. Bring your questions.
https://t.co/4TuhRY17sb

[HJ Chen @hj_chen]

In addition to USDC, Gateway now supports EURC and cirBTC. And it uses the same Gateway flow you're familiar with.
More exciting things to come for Circle Interop so stay tuned :)

https://t.co/nF3wdOArPr

[Arc @arc]

Arc has surpassed $1 billion in USDC circulating supply.

A milestone for the network as the ecosystem continues to grow.

[Custara @Custarafinance]

Custara is now live on the Odoo Apps store.

https://t.co/QDGAq7JqHl

Connect your odoo, and your posted vendor bills flows in. Every bill is checked against your policies, approved by your team, and paid in USDC on Arc.

Your books stay in Odoo.
Payments stay under control.

[silence @silencexlm]

Real stories. Everyday @USDC.
Join the new USDC group in @Arc House. Share your story and meet other fans.
Kick off with us at the @Circle x @ChelseaFC NYC Watch Party, Oct 28.
Join the group Today!
https://t.co/BV3kiKE9B0

[Sam | Arc and Circle Dev Community @samconnerone]

Announcing!!! New Group and Watch Party!!

The @USDC Community is live on Arc House!

It’s a new home for USDC fans to learn, ask questions, and connect with Team USDC and each other.

Join the club, and use the forum, events, and member directory to get involved.

And we’re kicking things off in person:

⚽ Circle x Chelsea NYC Watch Party
📅 Wednesday, October 28 | 3:45–6:00 PM EDT
📍 Brooklyn, NYC

Watch Chelsea take on Liverpool with @circle and Team USDC. Expect good company, new connections, and merch giveaways. Bring someone new to USDC!

Spots are limited, so RSVP now: https://t.co/GqpiSW5NQF
Join the community: https://t.co/1dQRs4d2uP

[Circle Developer @BuildOnCircle]

Circle Interop goes further: cirBTC and EURC join USDC on Circle Gateway.

Builders get one unified balance per asset with gas-free Nanopayments powered by Gateway. Use the same Gateway integration, with no changes for existing USDC users.

Explore Gateway: https://t.co/zyIktMZhum

[silence @silencexlm]

What comes after the first transaction?

@Alex__Radu, founder and CEO of @PulsarMoneyApp, shares how the team is building on Arc to connect stablecoin balances with everyday spending, trading, and rewards.

Read the guest post: https://t.co/ZIlYa6Z3fK