TapChiBitcoin

Visa Crypto Labs has launched a CLI tool that allows AI agents to securely perform card payments without requiring API keys, reducing the risk of unauthorized transactions and protecting user finances. The tool is currently in beta and reflects Visa's commitment to advancing AI-era digital payments.

Investor interest in Ripple (XRP) is recovering, primarily driven by retail investors, with a rise in wallets holding under 100 XRP. Meanwhile, whale activity is cautiously returning, indicating improved market sentiment but the potential for further price declines remains.

The cryptocurrency market continues to face pressure amid rising inflation concerns in the United States and escalating geopolitical tensions. The prolonged US–Iran conflict has driven oil prices sharply higher, thereby adding additional pressure to the global economy.
In light of these developments, traders are adjusting their expectations regarding the market.

Brazil's Finance Minister Dario Durigan has suspended new crypto tax policies until after the 2026 presidential election to avoid divisiveness. Previously proposed public consultations on crypto taxes may now be postponed until 2027, while the country navigates its growing crypto landscape.

Vương Tiễn

Bitcoin shows positive recovery signals, improving market sentiment after a long phase of volatility. However, experts believe the current uptrend is short-term, with deeper correction risks ahead. According to Crypto Rover's fractal model, Bitcoin's price follows a four-year cycle influenced by halving events. The current cycle likely peaked in late 2025, with further declines expected before a potential bottom around 2026. Short-term price fluctuations can mislead investors, emphasizing the importance of understanding these cycles for long-term trends.

Cardano (ADA) is currently trading around 0.264 USD on 3/21, just above a dense liquidation zone. If the price corrects around 4% to 0.253 USD, the market could see up to 9.93 million USD in long positions forced to close.
On-chain data shows that selling pressure has somewhat cooled as the loss level

In February 2026, Solana surpassed Ethereum in stablecoin transaction volume, marking a significant shift in the market after Ethereum held dominance in 2024. The increase in Solana's usage reflects its growing role in actual transactions.

Bitcoin price (BTC) maintained a sideways trend around the 70,000 USD level during Friday's trading session, after failing to reclaim the previous 75,000 USD milestone. This movement coincides with two consecutive sessions recording net capital outflows from U.S. spot Bitcoin ETF funds, thereby reversing the trend.

A 66-year-old retiree in Hong Kong lost HK$6.6 million (approximately US$840,000) in a series of crypto investment scams after trusting self-proclaimed "crypto experts" via WhatsApp. Despite reporting the incidents, the victim fell prey to multiple fraudsters promising secure returns.

RIVER has surged by 25% in 24 hours, with a 11% increase over the past week, driven by speculative trading and a 42% rise in open interest. Despite this, actual market demand remains weak, suggesting a possibility of upcoming corrections.

The essay discusses a lunch event with Donald Trump scheduled for April 25, 2026, at Mar-a-Lago. Participation is determined by a blockchain ranking linked to the Official TRUMP token, requiring top wallet holders to spend between $70,000 and $7.4 million. Despite high costs, interest remains strong due to perceived value beyond financial benefits.

The largest Ethereum wallets have returned to an unrealized profit state, historically linked to strong price recoveries. The ETH Whales Unrealized Profit Ratio has surpassed 0, indicating significant investor gains. Past data suggests a correlation with upcoming price trends.

Security firm BlockSec has re-evaluated the AI-powered smart contract audit assessment benchmark called EVMBench, which was developed by OpenAI and Paradigm. The results show that AI bots are significantly less effective when faced with real-world exploit scenarios.
The research team has expanded the environment