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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.
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.
arc.io/blog/introducing-inte…
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.
agentic-works.circle.com
Experimental. Not a Circle product. Not advice.
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.
circle.com/blog/make-your-to…
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: developers.circle.com/gatewa…
CCTP is expanding beyond USDC.
Developers can now enable crosschain transfers for supported Circle-issued assets, like EURC and cirBTC, and third-party assets using CCTP’s messaging infrastructure.
In this video, learn:
→ How CCTP supports more assets across blockchains
→ What this unlocks for developers
→ How to get started sending EURC over CCTP
CCTP V2 on @SuiNetwork is now live.
Developers now have access to native USDC burn and mint transfers, inbound Fast Transfer, hooks, programmable messaging, and Sui specific tooling.
Start building: developers.circle.com/cctp
An agent can research market sentiment, pay for the services it needs, create a brief, and deliver the update by phone.
That is the shift Circle Agent Stack is built to support: agents that complete workflows, not just generate text.
GetLiquid says the $3.5T private credit market still runs on spreadsheets.
Chris Miller & Mark Napolitano of @getliquid_io on how they're bringing real estate lending with Arc.
Agents do not browse like humans.
They need service details in a format they can act on:
→ What the service does
→ What it costs
→ How to call it
→ How to pay
→ What comes back
Machine-readable discovery is one of the foundations of the agentic economy.
How do AI agents discover and pay for services?
Two layers matter:
→ A marketplace where services are listed
→ A payment layer where agents can pay and receive the result
With Circle Agent Stack, agents can discover, pay for, and use services in one workflow.
How do AI agents discover and pay for services?
Two layers matter:
→ A marketplace where services are listed
→ A payment layer where agents can pay and receive the result
With Circle Agent Stack, agents can discover, pay for, and use services in one workflow.
The next wave of software companies may look different.
Instead of only selling apps or APIs, they may sell agents as a service.
For that to work, agents need wallets, marketplaces, payments, and the ability to procure services from humans or other agents.
That is the economic layer Circle Agent Stack is built for.
Gateway Fast Deposit helps builders fund unified USDC balances up to 40x faster on eligible routes.
In this Release Notes episode, we cover how to estimate fees, choose FAST transfer speed, execute the deposit, and track relay progress via the Unified Balance Kit.
Agents can pay for services and now they can discover them too.
The new Discovery API gives builders keyless access to the full Agent Marketplace catalog through one public endpoint.
No API key. No auth. No Circle account.
Find x402-compatible services that accept USDC across chains, filter by category, network, price, and payment rails, then build discovery directly into your agent, wallet, CLI, or app.
circle.com/blog/discover-the…
CCTP now supports upfront fee payment for Fast Transfers.
Builders can quote and collect Fast Transfer and Forwarding fees upfront, instead of deducting them from transferred USDC.
That means:
→ Users receive the expected USDC amount
→ Developers present one bundled quote
→ Fees are handled separately from transferred value
→ Crosschain flows become easier to build and understand
Build with CCTP: circle.com/blog/deliver-pred…
CCTP now supports more than USDC, extending Circle’s crosschain trust layer to native EURC transfers.
One integration, more capabilities for developers to enable seamless multi-asset experiences.
Start building today: developers.circle.com/cctp/e…
CCTP now supports upfront fees.
In this Release Notes episode, HJ walks through how builders can keep destination amounts exact when using Fast Transfer, CCTP Forwarding Service, or both.
Request a signed quote, pay the fee separately on the source chain, and let the recipient receive the intended USDC amount. This feature is fully supported in Bridge Kit.
AI agents need more than payment execution.
They need wallets, policies, spend limits, and clear rules for what they can do.
Circle Agent Stack gives builders the primitives for bounded autonomy:
→ Agent Wallets
→ Policy controls
→ USDC payments
→ Marketplace access
→ x402 workflows
USDC, EURC, CCTP, and Bridge Kit are now live on @Plasma!
🌐 Build with fully backed euro and dollar stablecoins
🔗 Manage payments, settlement, and crosschain flows
🔄 Power seamless USDC movement with CCTP
⚙️ Integrate crosschain transfers in around 10 lines of code with Bridge Kit
Start building with the USDC & EURC Quickstart Guides:
USDC: developers.circle.com/stable…
EURC: developers.circle.com/stable…
Reminder: CCTP V1 (Legacy) deprecation begins on October 31, 2026 and completes on December 1, 2026.
If your app still routes USDC through CCTP V1 (Legacy) contracts, start your migration now.
CCTP V2 is now the path forward for:
→ Standard and Fast Transfer modes
→ Hooks and programmable composability features
→ New and upcoming chain support
Learn more: circle.com/blog/migrate-to-c…
