Circle and Stripe Race to Replace Credit Cards With Stablecoin Payments for AI Agents

TLDR: Circle launched Arc blockchain and nanopayments, cutting transaction costs to fractions of a penny for AI agents. Stripe and Paradigm built Tempo blockchain, raising $500M at a $5B valuation for stablecoin payment rails. Credit card fees make microtransactions unworkable, giving stablecoins a structural edge in machine-to-machine commerce. Coinbase’s x402 recorded just $24M in volume, [...]

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