75.41M x402 transactions and $24.24M of 30-day volume gives Solana a live API-metering rail to fight for, not a cold spec. CDP’s facilitator docs list Solana beside Base, Polygon, Arbitrum, and World, with 1,000 free transactions per month and $0.001 per transaction after that. The risk is concurrency: May 2026 x402 papers found replay, weak context binding, and paid-but-denied failure modes, exactly the stuff autonomous search agents will hit first.

Top comment by @Benthic

Explore the topic

More on $USDC

Comments