Stablecoin

Onchain investigator ZachXBT alleges Circle did not freeze or blacklist roughly $420 million in illicit USDC flows since 2022 across 15 hack-and-fraud cases. He says Circle sometimes had hours or days to act, including cited incidents tied to GMX, Cetus and Drift Protocol, but took limited action or acted after funds were swapped into ETH.

An on-chain report from ZachXBT alleges more than $420m in USDC-related compliance lapses tied to illicit flows since 2022. Shared on 3 April, it cites cases where funds were not frozen or were frozen only after delays, including activity linked to the $280m Drift Protocol exploit.

Ripple Labs says it is speeding up XRPL integration with Ripple Treasury, positioning the XRP Ledger for a potentially sharp rise in on-chain usage in 2026. Ripple Treasury handled $13 trillion in payments last year and was bought for about $1 billion in October 2025, while RLUSD and XRP are already being adopted to streamline enterprise payments.

On April 2, 2026, Coinbase Global (COIN) joined the Linux Foundation to formally establish the x402 Foundation, a nonprofit set up to steward an open-source protocol built around HTTP 402 "Payment Required". The X402 protocol turns the long-unused status code into a machine-readable payment flow that lets websites, APIs, and autonomous AI agents price and settle requests via digital wallets, including stablecoin-based settlement such as USDC.

Japan’s revised Payment Services Act framework limits “digital-money type stablecoins” to licensed domestic issuers, with rules effective from June 2023 and additional refinements scheduled by June 2026. JPYC Co. launched a fully regulated yen-pegged stablecoin in October 2025 and set targets of 10 trillion yen in circulation over three years and 60 trillion yen within five years. The structure also constrains access to foreign dollar stablecoins, with USDT largely restricted and USDC offered through a limited regulated pathway via SBI VC Trade.

World Liberty Financial (WLFI) is drawing ethics scrutiny over a structure that sends 75% of net revenue to DT Marks DEFI LLC, an entity tied to Donald Trump and his family, while shielding them from operational liability. A House Democrats staff report dated November 24 described WLFI as a focal point of alleged self-dealing, alongside claims of at least $890 million collected and tokens valued at $3.8 billion. The project has also been linked to large inflows including Justin Sun's $75 million purchase and a $100 million stablecoin transfer from the UAE-based Aqua 1 Foundation, while WLFI tokens are reported down 50% from all-time highs.

On April 2, 2026, Coinbase and the Linux Foundation launched the X402 Foundation to steward an open-source standard that uses HTTP status code 402 as a built-in payment trigger. The X402 flow lets servers quote a price and accepted tokens, while clients submit a signed payment payload (including stablecoins or other ERC-20 tokens) within normal web/API requests. Early tooling is tied to Base, with Cloudflare's Agents SDK supporting transactions on Base Sepolia using USDC.

Circle has launched cirBTC, a wrapped Bitcoin token backed 1:1 by native on-chain BTC reserves, with initial deployment on Ethereum mainnet and Circle's Arc blockchain. The company says the design includes real-time on-chain reserve verification and no third-party custodian, positioning cirBTC for DeFi lending and derivatives use alongside USDC and Circle Mint.

Stablecoin transaction volume rose to $7.2 trillion in February, exceeding the $6.8 trillion handled by the US Automated Clearing House network. The comparison uses a 30-day adjusted rolling USD volume that excludes MEV and intra-centralized exchange activity. Artemis data for March also put stablecoin volume at $7.5 trillion, matching ACH over the same 30-day window.

Circle said it will introduce cirBTC, a wrapped Bitcoin token backed 1:1 by BTC, aimed at institutional use cases such as OTC desks, market makers and lending protocols. Announced on Thursday, cirBTC is set to debut on Ethereum and also be made available via Circle's Arc layer-1 and Circle Mint platform.