Coinbase CEO Brian Armstrong has just announced three noteworthy figures regarding the scale of the exchange's stablecoin operations, demonstrating the scale of the payment infrastructure Coinbase has built, which goes far beyond Vai as a simple digital asset exchange.
$1 trillion in stablecoin flows annually.
According to Armstrong, Coinbase processes approximately $1 trillion worth of stablecoins in circulation annually. It's important to note that this figure represents the flow of funds through Coinbase's payment infrastructure – a stark contrast to the volume on the exchange itself. This number reflects Coinbase's Vai as a payment infrastructure for stablecoins, not just a platform for buying and selling digital assets.
$20 billion USDC is currently held on the platform.
Armstrong also revealed that Coinbase currently holds $20 billion worth of USDC on its platform. This figure is up from the $19 billion reported in its Q1 financial report – at that time equivalent to more than 25% of the total USDC in circulation globally. This shows that Coinbase continues to be the largest concentration of USDC liquidation in the entire ecosystem.
Over 160 million AI agent payment transactions processed via x402.
The third statistic relates to the hottest trend right now: AI agent payments. According to Armstrong, in the past year, the x402 agent payment protocol has processed over 160 million agent-to-agent transactions – concrete evidence that the AI agent economy is no longer a theoretical concept but is already operating on a significant scale.
Base: $19 trillion in stablecoin transactions since the beginning of the year.
Adding to Armstrong's figures, Alec Lovett – Head of Infrastructure Products at Coinbase – revealed that the Base blockchain has processed $19 trillion in stablecoin volume since the beginning of 2026. This is a massive number, reflecting that Base is becoming one of the busiest stablecoin payment layers in the entire blockchain space.
