Welcome to our weekly digest, where we unpack the latest in account and chain abstraction and the broader infrastructure shaping Ethereum.
This week: NEAR makes Confidential Intents generally available so any app can offer private cross-chain execution; Arbitrum adds x402 and MPP support to make agent payments practical; BNB Chain lays out a speed-focused roadmap with a native account abstraction suite; and a new academic study finds that popular browser-extension wallets leak more about their users than most people assume.
- NEAR Makes Confidential Intents Generally Available
- Arbitrum Adds x402 and MPP for Agents
- BNB Chain Doubles Down on Speed
- Research Highlights Privacy Risks in Browser Wallets
Please fasten your belts!
NEAR Makes Confidential Intents Generally Available
NEAR has made Confidential Intents generally available, opening private cross-chain execution to every developer on the network. Any builder using the NEAR Intents 1Click Swap API can now offer confidential swaps and transfers to their users, with no privacy infrastructure of their own to stand up.
The idea is to let activity move across chains without broadcasting it to the whole world. Wallets can add confidential swaps inside existing flows, DEXs and aggregators can reduce the trade signaling that gives away strategy, and multichain managers can rebalance positions without exposing them.
For trading and DeFi apps, that means positions, counterparties, and activity can stay off the public chain, while payments and consumer apps can support confidential cross-chain transfers. NEAR frames the launch as a privacy primitive the whole industry can build on, arguing that when privacy is an option, users take it.
It also fits NEAR’s broader chain-abstraction pitch, where a user declares an intent and the network handles cross-chain routing behind the scenes. Adding confidentiality to that flow is a natural next step, and one that pairs well with account abstraction, since both aim to hide infrastructure the user should not have to think about.
Arbitrum Adds x402 and MPP for Agents
Arbitrum has added two new pathways for building agent payment and settlement flows: x402 and MPP. Coinbase’s hosted x402 facilitator now supports Arbitrum, and Offchain has published arbitrum-mpp, an open-source implementation of the Machine Payments Protocol.
x402 folds payment into the normal request and response pattern that software already uses. An agent calling a paid API or data product can receive a payment requirement and respond to it programmatically, without a human stepping in or a separate checkout.
MPP ships both halves of the flow as a TypeScript SDK. The client turns a server’s challenge into a signed payment authorization, and the server validates it, submits the transaction, and confirms settlement, with runnable examples so developers can test the full handshake locally.
The account abstraction angle is in the settlement design. Payments settle in USDC through a signed transfer authorization, so a payment can be authorized offchain and settled onchain without the payer holding the gas token or sending a separate approval first.
Arbitrum calls this an early step toward becoming a practical home for agentic finance, where agents request a service, weigh the cost, authorize payment, and continue the workflow. The standards are still forming, but the direction is that more economic activity will be initiated and coordinated by agents.
BNB Chain Doubles Down on Speed
BNB Chain published its H2 2026 technical roadmap, and the headline is speed. In the first half of the year, it cut block intervals to 450 ms, brought in-memory finality down to 650 ms, and nearly doubled benchmark throughput to around 5,200 TPS.
The second-half goal is to double mainnet throughput again, on a stated path toward a 10x improvement, alongside better resource isolation so one busy app does not slow down the others. Gas fees will also be tuned by industry vertical rather than changed across the board.
The most interesting part for us is a next-generation L1 in development, targeting 100,000+ TPS with sub-50 ms preconfirmations and no public mempool, which blocks front-running by design. It is slated for testnet by the end of 2026 and mainnet in early 2027.
That new chain ships with a dedicated Account Abstraction Suite: gas sponsorship, a GasToken, transaction batching, scheduled execution, passkey signing, and access-key control, all aimed at delivering Web2-grade UX natively. Native confidential transactions with selective disclosure round out the design.
Post-quantum readiness also leans on account abstraction. BNB Chain is researching how AA can let users adopt quantum-safe security without changing their existing addresses or breaking what they have already built.
Research Highlights Privacy Risks in Browser Wallets
A new academic paper offers a sobering look at wallet privacy. Titled “The Masks We (Think We) Wear” and accepted at the Privacy Enhancing Technologies Symposium, it measured 85 of the most popular Chrome browser-extension wallets, which together represent about 35 million users.
The researchers identify five privacy threats that arise from wallets talking to blockchain infrastructure and the browser. In short, routine behavior leaks more than users assume, and addresses people believe are unlinked often are not.
Among the findings, routine RPC calls can leak structural links between a user’s addresses, and most Ethereum wallets handle permission revocation inconsistently, continuing to expose previously revoked addresses across sessions. Many wallets also inject their provider into cross-origin iframes, which enables passive cross-site tracking and even real-world deanonymization without any user interaction.
Taken together, these behaviors can link multiple addresses to one person, track users across sites, and connect their browsing to their onchain wealth. The authors argue that many of the leaks are fixable through better wallet implementation and stronger privacy in ecosystem standards, and they call for standardized, privacy-preserving wallet architectures.
The finding lands well alongside this week’s privacy launches. As NEAR and BNB Chain build confidentiality into execution, this paper is a reminder that the wallet layer itself, the part users touch most, still needs the same attention.
🛠️ Builder note: Etherspot
AA infra should make development easier, not harder.
- One RPC endpoint across chains
- Pay-as-you-go pricing on mainnet
- No markup on gas fees
- API key controls with built-in security
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