Gagan Mac

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"but x402 doesn't support credit cards" - WRONG cointelegraph.com/news/visa-laun…

The internet scaled because it gave the world a standard stack for moving information across networks. Now the same shift is happening for value. We live in a multichain world, but settlement speed still varies across chains, more assets need interoperable infrastructure, and crosschain execution is still too complex. Circle’s interoperability roadmap is focused on: → Faster, more predictable settlement → Expanding beyond USDC to new assets → Simpler, programmable crosschain workflows That shift is already underway. Trading platforms like @HyperliquidX are using Circle interop to make crosschain account funding seamless. Asset issuers have CCTP as an institutional-grade option to scale distribution and utility across ecosystems. And batched instant settlement crosschain powered by Gateway is opening up new forms of economic activity, including agent-driven nanopayments. This is how value moves at internet scale. Read more: circle.com/blog/building-…

App Kits is now available. App Kits is a suite of SDKs for core onchain flows like bridging, swapping, and token transfers. → Bridge: crosschain @USDC transfers → Swap: token swaps without managing third-party integrations or liquidity integrations → Send: token transfers between wallets on the same chain App Kits also includes built-in monetization, so developers can configure revenue sharing directly in transaction flows without deploying custom contracts. arc.network/blog/app-kits-…

App Kits is now available. App Kits is a suite of SDKs for implementing payment and liquidity flows like bridging, swapping, and token transfers, in just a few lines of code. → Bridge: crosschain USDC transfers via CCTP → Swap: token swaps without managing third-party integrations, liquidity, or provider integrations → Send: transfer tokens between wallets on the same chain App Kits also includes built-in monetization, so you can configure revenue sharing directly in transaction flows without deploying custom contracts. Get started: arc.network/blog/app-kits-…

The best ecosystems don't ask you to trust them. They let you verify. Arc's code is open. The bug bounty is live. You can run a node today. This is what credible financial infrastructure for the internet looks like before mainnet. Inspect it yourself. 👇

As Arc approaches mainnet, we’re opening the network. Starting today, developers can spin up a testnet node, inspect the code, and actively test and challenge Arc through our live bug bounty on HackerOne. → Arc Testnet code is now open-source → The Arc bug bounty is live on @Hacker0x01 → Developers can run their own Arc nodes Inspect it. Test it. Validate it. Blog: arc.network/blog/open-sour… Bug Bounty: hackerone.com/circle-bbp

Join us LIVE on April 14 at 4PM ET for "Agentic Payments: x402 and the Future of Machine Commerce" @programmer / @coinbasedev @gaganmac / @circle @shafu0x / @agentcashdev / @x402scan @nemild / @ycombinator Hosted by @sensahil & @mikemaccana at Quicknode Set your reminder 👇

Today, we delivered a major new product launch with the introduction of CPN Managed Payments. As we continue to scale stablecoin payments, and build on the rapid growth we've already been seeing on CPN, we found a very strong need from banks, PSPs, fintechs and large tech firms for a solution that enabled them to operate fiat-to-fiat and fiat-stablecoin payment flows without needing to stand-up and operate their own wallets and blockchain infrastructure, or handle digital assets and stablecoins directory (minting, custody,etc) and similarly to stand-up the licensing and compliance requirements for using stablecoins and blockchains for payments activity. Managed Payments enables an FI to join and operate on CPN, while Circle handles the rest, building on our decade-plus experience operating the world's most widely adopted, compliant and regulated infrastruture for digital currency payments. CPN Managed Payments significantly expands Circle's CPN offering, and we believe will accelerate adoption by FIs around the world. Details, including the full API set, included below. circle.com/cpn/managed-pa…

Crosschain forwarding to @solana is now live for Circle CCTP and Bridge Kit. Circle’s forwarding service automates destination-chain execution for crosschain USDC transfers, reducing operational complexity while improving speed and reliability. → Automate the final mile of crosschain transfers → Reduce end-to-end transfer time → Lower operational costs and third-party risk → Improve both developer and user experience Supported for routes to @arbitrum, @avax, @base, @ethereum, HyperEVM from @HyperliquidX, @inkonchain, @LineaBuild, @monad_xyz, @optimism, @0xPolygon, @SeiNetwork, @solana, @SonicLabs, @unichain, and @world_chain_, with more blockchains expected. Start building: developers.circle.com/cctp/concepts/… developers.circle.com/bridge-kit/tut…

For the last 30 years we were always 5 years away from Quantum Computers. But sentiment suddenly flipped. Technology is suddenly improving. In just the last couple of weeks, Google suggested Q-day could come as early as ~2029, and new research points to breaking ECC requiring far fewer qubits than previously thought. We still don’t know when quantum will come to reality. But to me, one thing is more clear than ever - when it comes, it will be sudden. For blockchains, dealing with quantum is both a blessing and a curse. Yes many, besides Bitcoin, support “upgrade” mechanisms. But migrating liquidity, wallets, and applications is a nightmare. @arc is built with quantum threat in mind from day one. A practical roadmap allows to both support existing ecosystem of tools and apps built around ECC cryptography, but also have quantum-safe built-in mechanisms (like signatures and checkpoints) to keep assets bullet proof. One of the most unique and interesting aspects of the architecture is that because @arc will leverage confidential compute subspace. Within that subspace, all assets, applications, and transactions will be private and PQ secure by default. So, for instance, you can still generate a traditional ECC key within the subspace, but because of the extra layer of PQ encryption build on top, the keys and interactions fully hidden from adversaries. Stay tuned for more. @jerallaire of @circle explains on @tbpn ⬇️

Google’s 2029 PQ readiness timeline is a wake up call. Arc is taking a holistic approach to deploying PQ cryptography including PQ wallet signatures on mainnet launch. PQR is not zero-sum. The ecosystem needs to move together and we’re excited to help lead the way.

"We had this philosophy when we started Circle that over the long run—the marginal cost of storing and moving value would go to zero, and that the business model of charging fees for payments would collapse." — Circle CEO @jerallaire "You don't get charged for your WhatsApp audio call." "We just announced something called Circle Nano Payments. It's a module for agents to be able to have a stored balance of digital dollars—tokenized dollars—and be able to transact them to different wallets on different blockchains." "We've gotten it to the point where we can actually have transactions priced at one-millionth of a penny per transaction."

Circle Wrapped Bitcoin is coming. Backed 1:1 by BTC and readily verifiable onchain, cirBTC is being built to work seamlessly with Circle infrastructure and the broader DeFi ecosystem. Learn more: circle.com/cirbtc

Reminder that the United States could have been the world leader in 5G technology instead of China if we had just given *one guy* a green card when he needed one.

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98.7% of x402 volume by token across evm chains is settled in usdc.

Running a solver or market-maker across chains? @Rockaway_X integrated Circle Gateway to turn fragmented USDC into a unified crosschain balance they can deploy less than500ms. The flow: → Deposit USDC into Gateway Wallet contracts and create a unified balance → Mint on destination chain via API when liquidity is needed RockawayX’s integration with Gateway is an early example of what the new paradigm looks like in production.

Circle Skills up and available in the @cursor_ai Marketplace. cursor.com/marketplace/ci… The pace and speed of apps built with Circle is accelerating with AI Skills proliferation. I am seeing new apps popping up faster than at any time in our history. Blockchain Dev used to be really hard; now you can vibe could apps with native internet money. Incredible.