79 Web3 AI funding deals tracked by BlockAI News

BlockAI News tracks 79 funding, M&A, and AI-agent deals across Web3 and AI.

BlockAI News has compiled 79 funding stories across five categories, updated daily, covering AI agents, AI labs, Web3, DeFi, and M&A. The feed highlights fresh capital moving into enterprise AI, crypto infrastructure, and tokenization plays from late April through mid-May 2026.

What changed

The top of the feed is dominated by large checks and strategic acquisitions. Sierra closed a $950 million Series E at a $15.8 billion valuation, KDDI agreed to buy 14.9% of Coincheck for $65 million, and Digital Asset is targeting a $300 million round at a roughly $2 billion valuation.

Other headline moves show how AI infrastructure and crypto rails are converging. IREN signed a $3.4 billion Nvidia GPU cloud contract with a $2.1 billion equity option attached, while Payward, Kraken’s parent, agreed to buy Reap for $600 million to expand stablecoin payments in Asia.

• Sierra hit $150M ARR and says 40% of the Fortune 50 are customers.
• Coincheck gains access to KDDI’s 72M mobile subscribers and 39.67M au PAY wallets.
• Kalshi closed a $1B Series F at a $22B valuation after volume growth accelerated.
• Exponent raised $5M seed and says it has processed $2B+ in yield volume.

Why it matters

For developers building agents, tokenization, or onchain finance, the signal is clear: buyers are paying for distribution, regulated access, and infrastructure that can move money or compute at scale. The rounds also show a split between application-layer AI companies and the platforms that power them.

For the market, the list suggests capital is still flowing into a small set of categories with strong enterprise demand or clear rails to revenue. That includes AI agents, payment infrastructure, prediction markets, and institutional blockchain systems.

The main question now is not whether capital is available, but which layer of the stack gets funded next: the agent app, the payments rail, or the blockchain plumbing underneath.